CN112366830B - Intelligent high-reliability low-voltage power supply and distribution system based on radial wiring and method thereof - Google Patents

Intelligent high-reliability low-voltage power supply and distribution system based on radial wiring and method thereof Download PDF

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CN112366830B
CN112366830B CN202011412097.9A CN202011412097A CN112366830B CN 112366830 B CN112366830 B CN 112366830B CN 202011412097 A CN202011412097 A CN 202011412097A CN 112366830 B CN112366830 B CN 112366830B
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power supply
regional
master station
switch
load
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CN112366830A (en
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赵玉明
周华群
郭垒
王恒
王婧娟
杨明红
张基伟
孙右好
李志军
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Beijing China Coal Mine Engineering Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/12—Monitoring network conditions, e.g. electrical magnitudes or operational status
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/10—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by displaying of information or by user interaction, e.g. supervisory control and data acquisition [SCADA] systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/007—Arrangements for selectively connecting one or more loads to one or more power sources or power lines
    • H02J3/0073—Arrangements for selectively connecting one or more loads to one or more power sources or power lines by providing alternative feeding paths when the main path fails
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/01—Arrangements for reducing harmonics or ripples
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/12—Arrangements for adjusting voltage in AC networks by changing a characteristic of the network load
    • H02J3/16—Arrangements for adjusting voltage in AC networks by changing a characteristic of the network load by adjustment of reactive power
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/38—Arrangements for feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2103/00—Details of circuit arrangements for mains or AC distribution networks
    • H02J2103/30—Simulating, planning, modelling, reliability check or computer assisted design [CAD] of electric power networks
    • H02J2103/35—Grid-level management of power transmission or distribution systems, e.g. load flow analysis or active network management
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40—Arrangements for reducing harmonics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

本发明公开一种基于放射式接线的智能化高可靠性低压供配电系统及其方法，包括在供电母线与负荷母线之间的主站设备，以及在负荷母线与负荷之间的N个区域站设备。本发明放射式接线的低压供配电系统可靠性高、智能化高，主站多功能电源采取主电源模式，将系统内部的供电无缝切换到主站柴油发电机上，不存在断电死区时间；主站多功能电源对负荷接入点进行谐波和无功动态跟踪补偿功能，不会将系统内部产生的谐波通过供电母线接入点进入到电网，造成污染。系统内部任何负荷分支发生故障时，不需要整个系统断电，故障区域控制器与区域多功能电源相互配合实现试起动，尝试区域内的故障自愈，显示在主站人机界面上，简化排除过程，减少排除故障的工作量。

Figure 202011412097

The invention discloses an intelligent high-reliability low-voltage power supply and distribution system based on radial wiring and a method thereof, including master station equipment between the power supply bus and the load bus, and N areas between the load bus and the load station equipment. The low-voltage power supply and distribution system with radial wiring in the present invention has high reliability and high intelligence. The multi-function power supply of the main station adopts the main power supply mode, and the power supply inside the system is seamlessly switched to the diesel generator of the main station, and there is no power failure dead zone Time; the multi-functional power supply of the master station performs harmonic and reactive power dynamic tracking compensation functions on the load access point, and will not enter the harmonics generated inside the system into the power grid through the power supply bus access point, causing pollution. When any load branch in the system fails, the whole system does not need to be powered off. The fault area controller and the area multi-function power supply cooperate with each other to realize the trial start, try the fault self-healing in the area, and display it on the man-machine interface of the main station, simplifying the troubleshooting process, reducing the workload of troubleshooting.

Figure 202011412097

Description

一种基于放射式接线的智能化高可靠性低压供配电系统及其 方法An intelligent high-reliability low-voltage power supply and distribution system based on radial wiring and its method

技术领域technical field

本发明涉及供配电技术领域，尤其涉及适用于工业施工现场、发电厂辅助设备、煤矿、钢铁、石化、化纤、芯片制造等负荷区域分散、且现场设备和仪器仪表对供配电质量要求高的应用。具体地说是一种基于放射式接线的智能化高可靠性低压供配电系统及其方法。The invention relates to the technical field of power supply and distribution, in particular, it is suitable for industrial construction sites, power plant auxiliary equipment, coal mines, steel, petrochemical, chemical fiber, chip manufacturing, etc., where the load areas are dispersed, and field equipment and instruments have high requirements for power supply and distribution quality. Applications. Specifically, it is an intelligent high-reliability low-voltage power supply and distribution system and its method based on radial wiring.

背景技术Background technique

目前，低压供配电线路有放射式、树枝式和环形等基本接线方式。放射式接线，基于独立负荷或集中负荷均由单独的配电线路供电，其特点是引出线发生故障时互不影响，一般用在单台设备容量较大、容量比较集中或供电可靠性高的场所。与其他几种接线形式相比，放射式接线已经高于其他几种接线形式。但对于很多应用场景，仅仅采用了放射式接线的常规低压供配电系统依然无法满足负荷对高可靠性供电的要求，而且现有常规低压供配电系统普遍存在智能化低的问题。At present, low-voltage power supply and distribution lines have basic wiring methods such as radial, branch and ring. Radial wiring, based on independent loads or centralized loads, is powered by separate distribution lines. Its characteristic is that it does not affect each other when the lead-out line fails. It is generally used in a single device with large capacity, relatively concentrated capacity, or high power supply reliability. place. Compared with several other wiring forms, radial wiring is already higher than other wiring forms. However, for many application scenarios, conventional low-voltage power supply and distribution systems that only use radial wiring are still unable to meet the load's requirements for high-reliability power supply, and existing conventional low-voltage power supply and distribution systems generally have the problem of low intelligence.

对于现有的常规供配电系统的监控与保护设备，各个站点与负荷之间除了电力线路外，需要单独敷设专用通信线路，成本和工程复杂度很高，后续工程扩建、改造灵活度受到限制。For the monitoring and protection equipment of the existing conventional power supply and distribution system, in addition to the power line between each site and the load, a dedicated communication line needs to be laid separately, which is costly and complex in engineering, and the flexibility of subsequent project expansion and transformation is limited. .

电网供电存在电压暂降和短时中断情况，对配电系统内负荷造成严重影响。国标《电能质量电压暂降与短时中断》(GB/T 30317)中已经对电压暂降和短时中断进行了明确定义。由于电压暂降和短时中断发生和回复速度都很快，常规供配电系统只能被迫停电，即使系统设有备用柴油发电机，也在供电母线掉电与柴油发电机起动完成之间存在断电死区时间。There are voltage sags and short-term interruptions in the grid power supply, which have a serious impact on the load in the power distribution system. The national standard "Power Quality Voltage Dips and Short Interruptions" (GB/T 30317) has clearly defined voltage dips and short interruptions. Due to the rapid occurrence and recovery speed of voltage sags and short-term interruptions, the conventional power supply and distribution system can only be forced to cut off the power. There is a power-off dead time.

由于供配电系统内部存在非线性负荷及电力电子类设备，会产生大小和频率时刻变化的谐波电流，谐波将通过供电母线接入点进入到电网，造成污染，超过限值还会遭到电网公司罚款。国标《电能质量公用电网谐波》(GB/T 14549)中已明确进行了谐波定义，并给出了注入电网接入点的谐波限值。Due to the existence of nonlinear loads and power electronic equipment in the power supply and distribution system, harmonic currents that vary in size and frequency will be generated, and the harmonics will enter the power grid through the power supply bus access point, causing pollution. To the grid company to fine. The national standard "Power Quality Harmonics of Public Power Grids" (GB/T 14549) has clearly defined harmonics, and given the limit value of harmonics injected into the grid access point.

智能化的微机继电保护装置广泛应用于电力的发电、输电、变电环节，但对于供配电环节却少有使用，导致低压供配电系统原始落后。常规供配电系统内部、尤其是低压配电环节普遍使用热磁脱扣断路器熔断器，任何负荷分支发生故障时，需要整个系统断电，且排除过程复杂，工作量大。Intelligent microcomputer relay protection devices are widely used in power generation, transmission, and transformation links, but they are rarely used in power supply and distribution links, resulting in the original backwardness of low-voltage power supply and distribution systems. Thermal magnetic tripping circuit breakers and fuses are commonly used in conventional power supply and distribution systems, especially in low-voltage power distribution links. When any load branch fails, the entire system needs to be powered off, and the troubleshooting process is complicated and the workload is heavy.

由于电力线路和负荷造成的无功损耗，导致负荷侧电压过低，往往最佳解决方案就是就地补偿，而常规就地补偿采用的电容补偿体积大、只能定值补偿，缺乏灵活性，且运维周期短。当有大功率电动机负荷起动过程中，会造成无功损耗突变，大幅拉低系统电压。如果在正常运行或交流电动机直接起动时不采取相应的措施，设备消耗无功功率，会造成电动机所连接的配电母线电压产生较大电压偏差，直接影响接于该配电母线上的其他用电设备的正常运行，还可能触发过、欠压保护动作，造成设备的有害跳闸；同时过大的起动冲击电流会使电动机绕组发热，从而加速绝缘老化，影响电动机寿命。为了应对配电母线的电压偏差问题，一方面对正常运行和电动机起动过程中造成的配电母线电压偏差水平进行限制；另一方面采取改善措施，降低电动机的起动造成的冲击，以满足母线电压偏差水平的限制要求。现行的相关规范标准对交流电动机起动时母线电压的偏差水平进行了明确限制：母线上接有照明或其他对电压波动敏感的负荷，电动机频繁启动时不宜低于额定电压的90％；电动机不频繁起动时不宜低于额定电压的85％。母线上未接照明或其他对电压波动较敏感的负荷，不应低于额定电压的80％。母线电压上未接其他用电设备时，可按保证电动机起动转矩的条件决定；对于低压电动机，尚应保证接触器线圈的电压不低于释放电压。Due to the reactive power loss caused by power lines and loads, the voltage on the load side is too low. Often the best solution is on-site compensation. However, the capacitance compensation used in conventional on-site compensation is bulky and can only be fixed-value compensation, which lacks flexibility. And the operation and maintenance cycle is short. When there is a high-power motor load starting process, it will cause a sudden change in reactive power loss, which will greatly reduce the system voltage. If corresponding measures are not taken during normal operation or when the AC motor is directly started, the reactive power consumed by the equipment will cause a large voltage deviation in the voltage of the distribution bus connected to the motor, which will directly affect other utilities connected to the distribution bus. The normal operation of electrical equipment may also trigger over-voltage and under-voltage protection actions, resulting in harmful tripping of the equipment; at the same time, excessive starting inrush current will heat the motor windings, thereby accelerating insulation aging and affecting the life of the motor. In order to deal with the voltage deviation problem of the distribution bus, on the one hand, limit the voltage deviation level of the distribution bus caused by the normal operation and the motor starting process; Limitation requirements for deviation levels. The current relevant norms and standards clearly limit the deviation level of the bus voltage when the AC motor is started: if the bus is connected to lighting or other loads sensitive to voltage fluctuations, the motor should not be lower than 90% of the rated voltage when the motor is frequently started; It should not be lower than 85% of the rated voltage when starting. Lighting or other loads sensitive to voltage fluctuations not connected to the bus should not be lower than 80% of the rated voltage. When the bus voltage is not connected to other electrical equipment, it can be determined according to the conditions to ensure the starting torque of the motor; for low-voltage motors, it should also ensure that the voltage of the contactor coil is not lower than the release voltage.

发明内容Contents of the invention

为此，本发明所要解决的技术问题在于：For this reason, the technical problem to be solved by the present invention is:

对于常规放射式接线的低压供配电系统可靠性差、智能化低；各个站点与负荷之间除了电力线路外，需要单独敷设专用通信线路，成本和工程复杂度很高；当供电母线出现异常，整个系统将停电，即使起动备用柴油发电机，也在供电母线掉电与柴发起动之间存在断电死区时间；系统内部产生的谐波将通过供电母线接入点进入到电网，造成污染，超过限值还会遭到电网公司罚款；系统内部任何负荷分支发生故障时，需要整个系统断电，且排除过程复杂，工作量大；由于电力线路和负荷造成的无功损耗，导致负荷侧电压过低，常规的电容补偿体积大、只能定值补偿；当有大功率电动机负荷起动过程中，会造成无功损耗突变，大幅拉低系统电压。For the low-voltage power supply and distribution system with conventional radial wiring, the reliability is poor and the intelligence is low; in addition to the power line between each site and the load, a dedicated communication line needs to be laid separately, which is costly and complex in engineering; when the power supply bus is abnormal, The entire system will be powered off. Even if the backup diesel generator is started, there will be a dead time between the power supply bus failure and the diesel engine starting; the harmonics generated inside the system will enter the power grid through the power supply bus connection point, causing pollution If the limit is exceeded, the power grid company will be fined; when any load branch in the system fails, the entire system needs to be powered off, and the troubleshooting process is complicated and the workload is heavy; due to the reactive power loss caused by the power line and the load, the load side If the voltage is too low, the conventional capacitor compensation has a large volume and can only be compensated at a fixed value; when a high-power motor load is started, it will cause a sudden change in reactive power loss and greatly lower the system voltage.

为克服上述缺陷，通过潜心研究和设计，综合多年从事相关经验和研究成果，本发明公开了一种基于放射式接线的智能化高可靠性低压供配电系统及其方法。In order to overcome the above-mentioned defects, the present invention discloses an intelligent high-reliability low-voltage power supply and distribution system based on radial wiring and a method thereof through painstaking research and design, and by integrating relevant experience and research results for many years.

为解决上述技术问题，本发明提供如下技术方案：In order to solve the above technical problems, the present invention provides the following technical solutions:

一种基于放射式接线的智能化高可靠性低压供配电系统，包括在供电母线与负荷母线之间的主站设备，以及在负荷母线与负荷之间的N个区域站设备，其中N为大于等于1的自然数；An intelligent high-reliability low-voltage power supply and distribution system based on radial wiring, including the main station equipment between the power supply bus and the load bus, and N area station equipment between the load bus and the load, where N is A natural number greater than or equal to 1;

所述主站设备包括主站控制器、主站通信耦合器、主站柴油发电机、主站多功能电源、通信阻波器、主站供电母线电压电流检测模块、并网开关和人机交互界面；所述供电母线的电流输出端，依次与所述通信阻波器、所述主站供电母线电压电流检测模块、所述并网开关和所述负荷母线的电流输入端电连接；所述主站通信耦合器、所述主站柴油发电机和所述主站多功能电源分别与所述负荷母线电连接；所述主站控制器分别与所述主站通信耦合器、所述主站柴油发电机、所述主站多功能电源、所述通信阻波器、所述主站供电母线电压电流检测模块、所述并网开关和所述人机交互界面通信连接；所述主站多功能电源还分别与所述主站供电母线电压电流检测模块、所述并网开关、所述主站柴油发电机通信连接；The master station equipment includes a master station controller, a master station communication coupler, a master station diesel generator, a master station multifunctional power supply, a communication wave trap, a master station power supply bus voltage and current detection module, a grid-connected switch and a human-computer interaction interface; the current output end of the power supply bus is electrically connected to the communication trap, the main station power supply bus voltage and current detection module, the grid-connected switch and the current input end of the load bus in turn; the The master station communication coupler, the master station diesel generator and the master station multifunctional power supply are respectively electrically connected to the load bus; the master station controller is respectively connected to the master station communication coupler, the master station The diesel generator, the multifunctional power supply of the master station, the communication wave trap, the voltage and current detection module of the power supply bus of the master station, the grid-connected switch and the human-computer interaction interface are connected in communication; The functional power supply is also communicatively connected with the master station power supply bus voltage and current detection module, the grid-connected switch, and the master station diesel generator;

每个所述区域站设备包括负荷母线与区域负荷子母线之间的区域电压电流检测器、区域开关、区域通信耦合器、区域多功能电源和区域控制器，以及在区域负荷子母线与支路负荷之间的n个支路开关，其中n为大于等于 1的自然数；所述负荷母线的电流输出端，依次通过所述区域电压电流检测器和所述区域开关与所述区域负荷子母线电流输入端电连接，所述区域多功能电源与所述区域负荷子母线电连接；所述区域通信耦合器位于所述负荷母线与所述区域电压电流检测器之间；所述区域负荷子母线与n个支路开关电连接；所述区域控制器与所述区域电压电流检测器、所述区域开关、所述区域通信耦合器、所述区域多功能电源和n个支路开关电通信连接；所述区域多功能电源与所述区域开关通信连接。Each of the regional station equipment includes a regional voltage and current detector between the load bus and the regional load sub-bus, a regional switch, a regional communication coupler, a regional multi-functional power supply and a regional controller, and an area between the regional load sub-bus and the branch n branch switches between the loads, wherein n is a natural number greater than or equal to 1; the current output terminal of the load bus passes through the regional voltage and current detector and the regional switch and the current of the regional load sub-bus successively The input terminal is electrically connected, and the regional multifunctional power supply is electrically connected to the regional load sub-bus; the regional communication coupler is located between the load bus and the regional voltage and current detector; the regional load sub-bus is connected to the regional load sub-bus. n branch switches are electrically connected; the regional controller is electrically connected to the regional voltage and current detector, the regional switch, the regional communication coupler, the regional multifunctional power supply and the n branch switches; The regional multifunctional power supply is communicatively connected to the regional switch.

上述基于放射式接线的智能化高可靠性低压供配电系统，所述主站控制器包括协调控制单元层和功能控制单元层；所述协调控制单元层包括主站通信控制单元和主站功能协调控制单元；所述功能控制单元层包括供电母线检测单元、并网开关控制单元、多功能电源控制单元、柴油发电机控制单元、通信阻波器监控单元和通信收发控制单元；所述人机交互界面与所述主站通信控制单元通信连接，所述主站通信控制单元和所述主站功能协调控制单元通信连接；所述主站功能协调控制单元分别通过所述供电母线检测单元、所述并网开关控制单元、所述多功能电源控制单元、所述柴油发电机控制单元与所述主站供电母线电压电流检测模块、所述并网开关、所述主站多功能电源、所述主站柴油发电机通信连接，所述主站通信控制单元分别通过所述通信阻波器监控单元和所述通信收发控制单元与所述通信阻波器和主站通信耦合器通信连接。In the above-mentioned intelligent high-reliability low-voltage power supply and distribution system based on radial wiring, the master station controller includes a coordination control unit layer and a function control unit layer; the coordination control unit layer includes a master station communication control unit and a master station function Coordination control unit; the functional control unit layer includes a power supply bus detection unit, a grid-connected switch control unit, a multi-functional power supply control unit, a diesel generator control unit, a communication trap monitoring unit and a communication transceiver control unit; the man-machine The interactive interface communicates with the master station communication control unit, and the master station communication control unit communicates with the master station function coordination control unit; the master station function coordination control unit passes through the power supply bus detection unit, the The grid-connected switch control unit, the multi-functional power supply control unit, the diesel generator control unit and the master station power supply bus voltage and current detection module, the grid-connected switch, the master station multi-function power supply, the The master station diesel generator is connected in communication, and the master station communication control unit is in communication connection with the communication wave trap and the master station communication coupler through the communication wave trap monitoring unit and the communication transceiver control unit respectively.

上述基于放射式接线的智能化高可靠性低压供配电系统，所述主站多功能电源包括主站多功能电源主控制单元层、主站基本控制单元层和主站主电路，所述主站基本控制单元层包括主站电源功能实现基本控制单元和主站储能元件管理单元，所述主电路包括主站软启动开关组K11、主站变流电路单元IGBT11和主站储能元件单元BMS11，所述主站供电母线电压电流检测模块、所述并网开关、所述主站柴油发电机和所述主站控制器与所述主站多功能电源主控制单元层通信连接，所述主站多功能电源主控制单元层与所述主站电源功能实现基本控制单元和所述主站储能元件管理单元通信连接；所述主站储能元件单元BMS11与所述主站储能元件管理单元通信连接；所述主站软启动开关组K11和所述主站变流电路单元IGBT11与所述主站电源功能实现基本控制单元通信连接；所述主站储能元件单元BMS11与所述主站变流电路单元IGBT11电连接，所述主站变流电路单元IGBT11与所述主站软启动开关组K11的一端电连接，所述主站软启动开关组K11的另一端与所述负荷母线电连接；在所述主站软启动开关组K11和所述主站变流电路单元IGBT11 之间设有采样装置CPT11，采样装置CPT11信号输出端与所述主站电源功能实现基本控制单元通信连接；在所述主站变流电路单元IGBT11和主站储能元件单元BMS11之间设有采样装置CPT12，采样装置CPT12分别与所述主站电源功能实现基本控制单元和所述主站储能元件管理单元通信连接；In the above-mentioned intelligent high-reliability low-voltage power supply and distribution system based on radial wiring, the multifunctional power supply of the master station includes the main control unit layer of the multifunctional power supply of the master station, the basic control unit layer of the master station, and the main circuit of the master station. The basic control unit layer of the station includes the basic control unit for realizing the power supply function of the main station and the energy storage element management unit of the main station. BMS11, the master station power supply bus voltage and current detection module, the grid-connected switch, the master station diesel generator and the master station controller communicate with the master station multifunctional power supply main control unit layer, and the The main control unit layer of the multifunctional power supply of the master station is connected with the power supply function of the master station to realize the basic control unit and the energy storage element management unit of the master station; the energy storage element unit BMS11 of the master station is connected with the energy storage element of the master station The management unit is connected by communication; the soft start switch group K11 of the master station and the converter circuit unit IGBT11 of the master station are connected to the power supply function of the master station to realize the communication connection with the basic control unit; the energy storage element unit BMS11 of the master station is connected to the The master station converter circuit unit IGBT11 is electrically connected, the master station converter circuit unit IGBT11 is electrically connected to one end of the master station soft start switch group K11, and the other end of the master station soft start switch group K11 is connected to the load Bus electrical connection; a sampling device CPT11 is provided between the soft start switch group K11 of the master station and the converter circuit unit IGBT11 of the master station, and the signal output terminal of the sampling device CPT11 realizes the basic control unit communication with the power supply function of the master station Connection; a sampling device CPT12 is provided between the main station converter circuit unit IGBT11 and the main station energy storage element unit BMS11, and the sampling device CPT12 is respectively connected with the main station power supply function to realize the basic control unit and the main station energy storage Component management unit communication connection;

所述主站多功能电源设置主电源模式和辅助电源模式，由主站电源功能实现基本控制单元和主站储能元件管理单元配合实现；当仅启动主站电源功能实现基本控制单元时，为辅助电源模式；主站控制器能使主站多功能电源实现自动模式切换，主站多功能电源实现供电母线与主站柴油发电机之间的无缝切换。The multifunctional power supply of the master station is provided with a main power supply mode and an auxiliary power supply mode, which are implemented by the cooperation of the main station power supply function realization basic control unit and the main station energy storage element management unit; when only the main station power supply function is started to realize the basic control unit, for Auxiliary power supply mode; the master station controller can enable the multi-function power supply of the master station to realize automatic mode switching, and the multi-function power supply of the master station can realize seamless switching between the power supply bus and the diesel generator of the main station.

上述基于放射式接线的智能化高可靠性低压供配电系统，所述并网开关包括并网开关控制器和并网开关电路，所述主站控制器和所述主站多功能电源与所述并网开关控制器通信连接，所述并网开关电路为并网开关K601；所述并网开关K601的一端与所述供电母线电连接、所述并网开关K601的另一端与所述负荷母线电连接；在所述并网开关K601与所述供电母线之间设有采样装置CTP601，在并网开关K601与所述负荷母线之间设有采样装置CPT602，所述采样装置CTP601和采样装置CPT602的信号输出端与所述并网开关控制器输入端通信连接；所述并网开关K601与所述并网开关控制器通信连接；In the above-mentioned intelligent high-reliability low-voltage power supply and distribution system based on radial wiring, the grid-connected switch includes a grid-connected switch controller and a grid-connected switch circuit, the master station controller and the master station multifunctional power supply are connected to the The grid-connected switch controller is connected in communication, and the grid-connected switch circuit is a grid-connected switch K601; one end of the grid-connected switch K601 is electrically connected to the power supply bus, and the other end of the grid-connected switch K601 is connected to the load The bus is electrically connected; a sampling device CTP601 is provided between the grid-connected switch K601 and the power supply bus, a sampling device CPT602 is provided between the grid-connected switch K601 and the load bus, the sampling device CTP601 and the sampling device The signal output terminal of CPT602 is communicatively connected with the input terminal of the grid-connected switch controller; the grid-connected switch K601 is communicatively connected with the grid-connected switch controller;

所述主站柴油发电机包括主站柴油发电机控制器和柴油发电机控制电路，所述主站控制器和所述主站多功能电源与所述主站柴油发电机控制器通信连接；所述柴油发电机控制电路包括柴油发电机和柴油发电机开关K701，所述柴油发电机通过所述柴油发电机开关K701与所述负荷母线电连接，所述柴油发电机与所述柴油发电机开关K701之间设有采样装置CPT702，所述柴油发电机开关K701与所述负荷母线之间设有采样装置CPT701；所述柴油发电机、采样装置CPT702、采样装置CPT701和柴油发电机开关K701分别与所述主站柴油发电机控制器通信连接。The master station diesel generator includes a master station diesel generator controller and a diesel generator control circuit, and the master station controller and the master station multifunctional power supply are communicatively connected to the master station diesel generator controller; The diesel generator control circuit includes a diesel generator and a diesel generator switch K701, the diesel generator is electrically connected to the load bus through the diesel generator switch K701, and the diesel generator and the diesel generator switch A sampling device CPT702 is provided between K701, and a sampling device CPT701 is provided between the diesel generator switch K701 and the load busbar; the diesel generator, sampling device CPT702, sampling device CPT701 and diesel generator switch K701 are respectively connected with The main station diesel generator controller is connected in communication.

上述基于放射式接线的智能化高可靠性低压供配电系统，所述区域控制器包括区域协调控制单元层和区域功能控制单元层；所述区域协调控制单元层包括区域通信控制单元和区域功能协调控制单元；所述区域功能控制单元层包括区域检测单元、区域开关控制单元、区域多功能电源控制单元、支路开关状态收集控制单元和通信收发控制单元；所述区域通信控制单元和所述区域功能协调控制单元通信连接；所述区域功能协调控制单元分别通过所述区域检测单元、所述区域开关控制单元、所述区域多功能电源控制单元、所述支路开关状态收集控制单元与所述区域电压电流检测器、所述区域开关、所述区域多功能电源、n个所述支路开关通信连接，所述区域通信控制单元通过所述通信收发控制单元与区域通信耦合器通信连接。In the above-mentioned intelligent high-reliability low-voltage power supply and distribution system based on radial wiring, the regional controller includes a regional coordination control unit layer and a regional function control unit layer; the regional coordination control unit layer includes a regional communication control unit and a regional function control unit layer. Coordination control unit; the regional function control unit layer includes a regional detection unit, a regional switch control unit, a regional multifunctional power supply control unit, a branch switch state collection control unit, and a communication transceiver control unit; the regional communication control unit and the The regional function coordination control unit is connected by communication; the regional function coordination control unit communicates with the regional detection unit, the regional switch control unit, the regional multifunctional power supply control unit, and the branch switch state collection control unit respectively. The regional voltage and current detector, the regional switch, the regional multifunctional power supply, and n branch switches are communicatively connected, and the regional communication control unit is communicatively connected with the regional communication coupler through the communication transceiver control unit.

所述区域多功能电源包括区域主控制单元层、区域基本控制单元层和区域主电路，所述区域基本控制单元层包括区域电源功能实现基本控制单元和区域储能元件管理单元，所述区域主电路包括区域软启动开关组K21、区域变流电路单元IGBT21和区域储能元件单元BMS21，所述区域控制器与所述区域主控制单元层的区域多功能电源主控制单元通信连接，所述区域多功能电源主控制单元与所述区域电源功能实现基本控制单元和所述区域储能元件管理单元通信连接；所述区域储能元件单元BMS21与所述区域储能元件管理单元通信连接；所述区域软启动开关组K21和所述区域变流电路单元 IGBT21与所述区域电源功能实现基本控制单元通信连接；所述区域储能元件单元BMS21与所述区域变流电路单元IGBT21电连接，所述区域变流电路单元IGBT21与所述区域软启动开关组K21的一端电连接，所述区域软启动开关组K21的另一端与所述区域负荷子母线电连接；在所述区域软启动开关组K21和所述区域变流电路单元IGBT21之间设有采样装置CPT21，采样装置CPT21信号输出端与所述区域电源功能实现基本控制单元通信连接；在所述区域变流电路单元IGBT21和区域储能元件单元BMS21之间设有采样装置 CPT22，采样装置CPT22分别与所述区域电源功能实现基本控制单元和所述区域储能元件管理单元通信连接；The regional multifunctional power supply includes a regional main control unit layer, a regional basic control unit layer and a regional main circuit, and the regional basic control unit layer includes a regional power supply function realization basic control unit and a regional energy storage element management unit. The circuit includes a regional soft-start switch group K21, a regional converter circuit unit IGBT21 and a regional energy storage element unit BMS21, and the regional controller communicates with the regional multifunctional power supply main control unit on the regional main control unit layer, and the regional The main control unit of the multifunctional power supply realizes the communication connection between the basic control unit and the regional energy storage element management unit with the regional power supply function; the regional energy storage element unit BMS21 is communicatively connected with the regional energy storage element management unit; The regional soft start switch group K21 and the regional converter circuit unit IGBT21 are connected to the regional power supply function to realize the basic control unit communication connection; the regional energy storage element unit BMS21 is electrically connected to the regional converter circuit unit IGBT21, the The regional converter circuit unit IGBT21 is electrically connected to one end of the regional soft-start switch group K21, and the other end of the regional soft-start switch group K21 is electrically connected to the regional load sub-bus; in the regional soft-start switch group K21 A sampling device CPT21 is provided between the area conversion circuit unit IGBT21, and the signal output terminal of the sampling device CPT21 is connected to the basic control unit for communication with the area power supply function; the area conversion circuit unit IGBT21 and the area energy storage element A sampling device CPT22 is provided between the units BMS21, and the sampling device CPT22 is respectively connected with the basic control unit of the regional power supply function and the regional energy storage element management unit;

所述区域多功能电源设置备用电模式和无功补偿模式，由区域电源功能实现基本控制单元和区域储能元件管理单元配合实现；The regional multifunctional power supply is provided with a standby power mode and a reactive power compensation mode, which are realized by the cooperation of the regional power supply function realization basic control unit and the regional energy storage element management unit;

所述区域开关包括区域开关控制器和区域开关电路，所述区域控制器和所述区域多功能电源与所述区域开关控制器通信连接，所述区域开关电路为区域开关K501；所述区域开关K501的一端与所述负荷母线电连接、所述区域开关K501的另一端与所述区域负荷子母线电连接；在所述区域开关 K501与所述负荷母线之间设有采样装置CPT501，在区域开关K501与所述区域负荷子母线之间设有采样装置CPT502，所述采样装置CPT501和采样装置CPT502的信号输出端与所述区域开关控制器通信连接；所述区域开关K501 与所述区域开关控制器通信连接；The regional switch includes a regional switch controller and a regional switch circuit, the regional controller and the regional multifunctional power supply are communicatively connected to the regional switch controller, the regional switch circuit is a regional switch K501; the regional switch One end of K501 is electrically connected to the load busbar, and the other end of the regional switch K501 is electrically connected to the regional load sub-busbar; a sampling device CPT501 is installed between the regional switch K501 and the load busbar. A sampling device CPT502 is provided between the switch K501 and the regional load sub-bus, and the signal output terminals of the sampling device CPT501 and the sampling device CPT502 are connected in communication with the regional switch controller; the regional switch K501 is connected to the regional switch Controller communication connection;

所述支路开关包括支路开关控制器和支路开关电路，所述区域控制器与所述支路开关控制器通信连接，所述支路开关电路为支路开关 K401，所述支路开关K401的一端与区域负荷子母线电连接，所述支路开关 K401的另一端与所述支路负荷电连接，所述支路开关K401与所述支路开关控制器通信连接。The branch switch includes a branch switch controller and a branch switch circuit, the regional controller communicates with the branch switch controller, the branch switch circuit is a branch switch K401, and the branch switch One end of K401 is electrically connected to the regional load sub-bus, the other end of the branch switch K401 is electrically connected to the branch load, and the branch switch K401 is communicatively connected to the branch switch controller.

基于放射式接线的智能化高可靠性低压供配电方法，包括如下步骤：An intelligent high-reliability low-voltage power supply and distribution method based on radial wiring includes the following steps:

(1)安装上述任一的基于放射式接线的智能化高可靠性低压供配电系统搭建主站设备和区域站设备，并连接主站设备和区域站设备的电路线路和通信线路；(1) Install any of the above-mentioned intelligent high-reliability low-voltage power supply and distribution systems based on radial wiring to build master station equipment and regional station equipment, and connect the circuit lines and communication lines of the master station equipment and regional station equipment;

(2)在主站人机交互界面录入主站设备和区域站设备中设备类型、特性和参数，设置各个负荷区域的负荷等级和供电要求；(2) Enter the equipment type, characteristics and parameters of the main station equipment and regional station equipment on the human-computer interaction interface of the main station, and set the load level and power supply requirements of each load area;

(3)在人机交互界面输入对应控制策略，控制主站设备功能，控制各个区域站设备功能；(3) Input the corresponding control strategy on the human-computer interaction interface, control the equipment functions of the master station, and control the equipment functions of each regional station;

(4)启动运行，然后根据区域负荷实现自检状态、静态运行状态、动态协调状态、主站设备故障状态和系统停机状态。(4) Start the operation, and then realize the self-inspection state, static operation state, dynamic coordination state, master station equipment failure state and system shutdown state according to the regional load.

上述基于放射式接线的智能化高可靠性低压供配电方法，在步骤(1) 中，包括如下步骤：The above-mentioned intelligent high-reliability low-voltage power supply and distribution method based on radial wiring, in step (1), includes the following steps:

(1-1)根据实际供配电容量和电压等级需要，选择并网开关、主站柴油发电机和主站多功能电源；(1-1) According to the actual power supply and distribution capacity and voltage level needs, select the grid-connected switch, main station diesel generator and main station multi-functional power supply;

(1-2)根据各个负荷区域的用电容量和电压，选择区域开关、区域多功能电源；(1-2) According to the power consumption capacity and voltage of each load area, select the regional switch and regional multi-functional power supply;

(1-3)根据负荷区域的具体负荷大小和电压，选择具体负荷支路的支路开关；(1-3) According to the specific load size and voltage of the load area, select the branch switch of the specific load branch;

(1-4)系统设置主站设备：在供电母线接入点后依次接入通信阻波器、主站供电母线电压电流检测模块、并网开关，到达负荷母线；负荷母线电连接主站通信耦合器、主站柴油发电机和主站多功能电源；设置主站控制器和人机交互界面；所述主站控制器分别与所述主站通信耦合器、所述主站柴油发电机、所述主站多功能电源、所述通信阻波器、所述主站供电母线电压电流检测模块、所述并网开关和人机交互界面通信连接；所述主站多功能电源还分别与所述主站供电母线电压电流检测模块、所述并网开关、所述主站柴油发电机通信连接；(1-4) The system sets up the main station equipment: after the access point of the power supply bus, the communication wave trap, the main station power supply bus voltage and current detection module, and the grid switch are sequentially connected to the load bus; the load bus is electrically connected to the main station for communication Coupler, main station diesel generator and main station multifunctional power supply; master station controller and man-machine interaction interface are set; said main station controller communicates with said main station coupler, said main station diesel generator, The multifunctional power supply of the master station, the communication wave trap, the voltage and current detection module of the power supply bus of the master station, the grid-connected switch and the human-computer interaction interface are connected in communication; the multifunctional power supply of the master station is also connected with the The master station power supply bus voltage and current detection module, the grid-connected switch, and the master station diesel generator communication connection;

系统根据负荷区域分布情况设置负荷区域的区域站设备：在负荷母线上接供电线路，线路另一端到达负荷区域后，依次连接区域电压电流检测器、区域开关，到达区域负荷子母线；区域负荷子母线连接区域多功能电源；区域通信耦合器位于负荷母线上的供电线路与区域电压电流检测器之间；在区域负荷子母线与支路负荷之间设有n个支路开关；设置区域控制器；所述区域控制器与所述区域电压电流检测器、所述区域开关、所述区域通信耦合器、所述区域多功能电源和n个支路开关电通信连接；所述区域多功能电源与所述区域开关通信连接。The system sets the regional station equipment in the load area according to the distribution of the load area: connect the power supply line to the load bus, and after the other end of the line reaches the load area, connect the area voltage and current detector and the area switch in sequence to reach the area load sub-bus; The bus bar is connected to the regional multi-functional power supply; the regional communication coupler is located between the power supply line on the load bus and the regional voltage and current detector; n branch switches are set between the regional load sub-bus and the branch load; the regional controller is set ; The regional controller is electrically connected with the regional voltage and current detector, the regional switch, the regional communication coupler, the regional multifunctional power supply and n branch switches; the regional multifunctional power supply is connected with The zone switches are communicatively connected.

上述基于放射式接线的智能化高可靠性低压供配电方法，在步骤(4) 中：所述自检状态为：系统搭建完成、主站控制器及区域控制器策略预设完成、系统启动，主站控制器对主站设备、区域控制器对所属区域站设备进行自检；若系统状态正常，则在人机交互界面上显示是否启动，等待下一步操作；若系统存在故障，在人机交互界面显示故障信息，禁止启动，等待人工故障排除；若发现具体设备故障，在人机交互界面上将故障设备屏蔽，或人工排除设备故障后再次启动自检；In the above-mentioned intelligent high-reliability low-voltage power supply and distribution method based on radial wiring, in step (4): the self-inspection status is: the system is set up, the master station controller and the regional controller strategy preset are completed, and the system starts , the master station controller performs self-inspection on the master station equipment and the area controller on the area station equipment it belongs to; if the system status is normal, it will display whether it is started on the human-computer The machine interaction interface displays the fault information, prohibits starting, and waits for manual troubleshooting; if a specific device fault is found, shield the faulty device on the human-computer interaction interface, or start the self-test again after manually troubleshooting the device fault;

静态运行状态为：主站设备均正常运行，区域内负荷没有大功率电动机直接起动；主站柴油发电机处于冷备份不起动状态，主站多功能电源处于辅助电源状态；N个区域多功能电源处于无功补偿模式，且仅对所在区域做稳定的常规无功补偿。The static running state is: the main station equipment is running normally, the load in the area does not have a high-power motor to start directly; the main station diesel generator is in the state of cold backup and does not start, the main station multi-function power supply is in the auxiliary power supply state; N regional multi-function power supplies It is in reactive power compensation mode, and only performs stable conventional reactive power compensation in the area.

上述基于放射式接线的智能化高可靠性低压供配电方法，在步骤(4) 中：动态协调状态包括7种动态协调状态，具体如下：In the above-mentioned intelligent high-reliability low-voltage power supply and distribution method based on radial wiring, in step (4): the dynamic coordination state includes 7 dynamic coordination states, as follows:

动态协调状态1：主站设备均正常运行，区域内负荷有大功率电动机直接起动时，主站柴油发电机处于冷备份不起动状态，主站多功能电源处于辅助电源状态；N个区域多功能电源处于无功补偿模式，起动过程中大功率电动机所在区域的区域多功能电源起用大功率负荷辅助起动补偿功能，补偿大幅突变的无功损耗，抑制区域负荷子母线、负荷母线电压波动；Dynamic coordination state 1: The equipment of the main station is in normal operation, and when the load in the area is directly started by a high-power motor, the diesel generator of the main station is in the state of cold backup and non-starting, and the multi-functional power supply of the main station is in the state of auxiliary power supply; N areas are multi-functional The power supply is in reactive power compensation mode. During the starting process, the regional multifunctional power supply in the area where the high-power motor is located uses the high-power load auxiliary starting compensation function to compensate for the reactive power loss of a large mutation, and suppress the voltage fluctuation of the regional load sub-bus and load bus;

动态协调状态2：主站设备均正常运行，一个或多个负荷区域内发生故障时，跳开故障所在支路的支路开关，故障被成功切除，故障所在的区域开关保持闭合状态，故障所在区域的区域控制器收到支路开关反馈信号后，上传给主站控制器，并显示在人机交互界面上，通知人工维修故障支路；Dynamic coordination state 2: The main station equipment is running normally. When a fault occurs in one or more load areas, the branch switch of the branch where the fault is located is tripped, and the fault is successfully removed. The switch of the area where the fault is located remains closed. After receiving the branch switch feedback signal, the regional controller in the area uploads it to the main station controller and displays it on the human-computer interaction interface to notify manual maintenance of the faulty branch;

动态协调状态3，主站设备均正常运行，一个或多个负荷区域内发生故障后，故障所在支路的支路开关拒动，或故障点位于区域负荷子母线上时，导致故障所在的区域开关断开；故障所在的区域控制器与故障所在的区域多功能电源相互配合实现试起动、向主站控制器发送申请重新并网报文、自动恢复并网功能的循环过程中，尝试区域内的故障自愈；如果不能实现故障自愈，上传给主站控制器，并显示在人机交互界面上，通知人工维修故障支路；In dynamic coordination state 3, the main station equipment is running normally. After a fault occurs in one or more load areas, the branch switch of the branch where the fault is located refuses to move, or when the fault point is located on the sub-bus of the regional load, the area where the fault is located The switch is turned off; the regional controller where the fault is located cooperates with the multi-functional power supply in the area where the fault is located to realize the trial start, send a message to the main station controller to apply for re-connecting to the grid, and automatically restore the function of grid-connecting. fault self-healing; if the fault self-healing cannot be achieved, it will be uploaded to the main station controller and displayed on the human-computer interaction interface to notify manual maintenance of the faulty branch;

动态协调状态4：主站设备均正常运行，一个或多个负荷区域内发生故障后，故障所在支路的支路开关拒动，或故障点位于区域负荷子母线上时，导致故障所在的区域开关断开；故障区域控制器主导的区域内的故障自愈失败，区域开关保持断开状态，且区域控制器提交报文给主站控制器并显示在主站人机交互界面上，要求人工排除故障；Dynamic coordination state 4: The main station equipment is running normally. After a fault occurs in one or more load areas, the branch switch of the branch where the fault is located refuses to move, or when the fault point is located on the sub-bus of the regional load, the area where the fault is located The switch is off; the fault self-healing in the area dominated by the fault area controller fails, and the area switch remains in the off state, and the area controller submits a message to the master station controller and displays it on the man-machine interface of the master station, requiring manual Troubleshooting;

动态协调状态5：主站设备均正常运行，由于供电母线电压偏低或N 个区域的总负荷过大，导致负荷母线电压偏低，主站控制器按照事先设定的供电优先级，逐级向各个区域控制器发送区域负荷切除指令，直至负荷母线电压恢复正常值，保证优先级高的负荷区域供电；Dynamic coordination state 5: The main station equipment is running normally. Due to the low voltage of the power supply bus or the total load of N areas is too large, the load bus voltage is low. Send regional load shedding instructions to each regional controller until the load bus voltage returns to the normal value to ensure the power supply for the load region with high priority;

动态协调状态6：供电母线发生异常，主站多功能电源采取主电源模式，将系统内部的供电无缝切换到主站柴油发电机上；当检测到供电母线恢复正常，关闭柴油发电机，主站多功能电源采取主电源模式，将系统内部的供电无缝切换回供电母线上；各区域负荷处于正常工作状态；Dynamic coordination state 6: When the power supply bus is abnormal, the multi-function power supply of the master station adopts the main power supply mode, and the power supply inside the system is seamlessly switched to the diesel generator of the master station; when it is detected that the power supply bus returns to normal, the diesel generator is turned off, and the master station The multi-functional power supply adopts the main power supply mode to seamlessly switch the power supply inside the system back to the power supply bus; the loads in each area are in normal working condition;

动态协调状态7：供电母线发生异常，主站多功能电源的主电源模式未被使能、且区域多功能电源以备用电模式被使能，各个区域控制器断开区域开关，区域多功能电源进入备用电模式，为所在区域内的负荷供电；当检测到供电母线恢复正常，区域多功能电源将区域内部的供电无缝切换回供电母线上；区域多功能电源的备用电模式未被使能，区域多功能电源为所在区域内负荷供电中断。Dynamic coordination state 7: An abnormality occurs on the power supply bus, the main power supply mode of the multi-functional power supply of the master station is not enabled, and the multi-functional power supply of the area is enabled in the backup power mode, each area controller disconnects the area switch, and the area multi-function power supply The power supply enters the standby power mode to supply power to the loads in the area; when it is detected that the power supply bus returns to normal, the regional multi-functional power supply seamlessly switches the power supply in the area back to the power supply bus; the standby power mode of the regional multi-functional power supply does not is enabled, the regional multi-functional power supply interrupts the power supply for the loads in the region.

上述基于放射式接线的智能化高可靠性低压供配电方法，在步骤(4) 中：In the above-mentioned intelligent high-reliability low-voltage power supply and distribution method based on radial wiring, in step (4):

主站设备故障状态：主站设备发生故障、且区域多功能电源的备用电模式被使能，各个区域控制器断开区域开关，区域多功能电源进入备用电模式，为所在区域内的负荷供电，直至区域多功能电源存储的能量耗尽；区域多功能电源的备用电模式未被使能，所在区域内负荷供电中断；Fault status of the main station equipment: the main station equipment fails, and the backup power mode of the regional multi-functional power supply is enabled, each regional controller turns off the regional switch, and the regional multi-functional power supply enters the backup power mode, providing power for the Load power supply until the energy stored in the regional multi-functional power supply is exhausted; the backup power mode of the regional multi-functional power supply is not enabled, and the load power supply in the area is interrupted;

系统停机状态：手动在人机交互界面上对主站控制器进行“停机”操作，主站控制器向各区域控制器发送停机指令，系统进入停机状态。System shutdown state: Manually perform a "stop" operation on the master station controller on the human-computer interface, the master station controller sends a shutdown command to each area controller, and the system enters the shutdown state.

本发明的技术方案取得了如下有益的技术效果：The technical solution of the present invention has achieved the following beneficial technical effects:

本发明的放射式接线的低压供配电系统可靠性高、智能化高。The radial wiring low-voltage power supply and distribution system of the present invention has high reliability and high intelligence.

(1)各个站点与负荷之间除了电力线路外，不需要单独敷设专用通信线路，采用现有的通信线路，成本和工程复杂度大大降低；(1) In addition to the power line between each station and the load, there is no need to lay a dedicated communication line separately, and the cost and engineering complexity are greatly reduced by using the existing communication line;

(2)当供电母线出现异常，不需要将整个系统停电，主站多功能电源采取主电源模式，将系统内部的供电无缝切换到主站柴油发电机上，使得供电母线掉电与柴油发电机起动之间不存在断电死区时间；(2) When the power supply bus is abnormal, there is no need to shut down the entire system. The multi-function power supply of the main station adopts the main power supply mode, and seamlessly switches the power supply inside the system to the main station diesel generator, so that the power supply bus is powered off and the diesel generator There is no power-off dead time between starts;

(3)主站和各负荷区域接入通信阻波器，同时主站多功能电源可对负荷接入点进行谐波和无功动态跟踪补偿功能，从而不会将系统内部产生的谐波通过供电母线接入点进入到电网，造成污染；(3) The main station and each load area are connected to the communication wave trap, and the multifunctional power supply of the main station can perform harmonic and reactive power dynamic tracking compensation functions for the load access point, so that the harmonics generated inside the system will not pass through The access point of the power supply bus enters the power grid, causing pollution;

(4)系统内部任何负荷分支发生故障时，不需要整个系统断电，故障区域控制器与区域多功能电源相互配合实现试起动，尝试区域内的故障自愈，如果自愈失败，区域控制器提交报文给主站控制器并显示在主站人机交互界面上，要求人工排除故障，大大简化了排除过程，减少排除故障的工作量；(4) When any load branch in the system fails, the whole system does not need to be powered off. The fault area controller and the area multi-function power supply cooperate with each other to realize the trial start and try the fault self-healing in the area. If the self-healing fails, the area controller Submit the message to the master station controller and display it on the man-machine interface of the master station, requiring manual troubleshooting, which greatly simplifies the troubleshooting process and reduces the workload of troubleshooting;

(5)主站多功能电源设有无功动态跟踪补偿功能，区域多功能电源设有无功补偿模式，可对电力线路和负荷造成的无功损耗，进行跟踪补偿；(5) The multifunctional power supply of the main station is equipped with a reactive power dynamic tracking compensation function, and the regional multifunctional power supply is equipped with a reactive power compensation mode, which can track and compensate the reactive power loss caused by power lines and loads;

(6)当有大功率电动机负荷起动过程中，各个区域多功能电源处于无功补偿模式，起动过程中大功率电动机所在区域的区域多功能电源起用大功率负荷辅助起动补偿功能，补偿大幅突变的无功损耗，抑制区域负荷子母线、负荷母线电压波动。(6) When there is a high-power motor load starting process, the multi-functional power supplies in each area are in reactive power compensation mode, and the regional multi-functional power supplies in the area where the high-power motors are located during the starting process use the high-power load auxiliary start compensation function to compensate for large sudden changes Reactive power loss, suppress voltage fluctuations of regional load sub-bus and load bus.

附图说明Description of drawings

图1本发明基于放射式接线的智能化高可靠性低压供配电系统的系统结构示意图；Fig. 1 is a schematic diagram of the system structure of an intelligent high-reliability low-voltage power supply and distribution system based on radial wiring in the present invention;

图2本发明基于放射式接线的智能化高可靠性低压供配电系统的主站监控器原理框图；Figure 2 is a functional block diagram of the main station monitor of the intelligent high-reliability low-voltage power supply and distribution system based on radial wiring in the present invention;

图3本发明基于放射式接线的智能化高可靠性低压供配电系统的主站监控器中协调控制单元架构图；Fig. 3 is an architecture diagram of the coordinated control unit in the master station monitor of the intelligent high-reliability low-voltage power supply and distribution system based on radial wiring in the present invention;

图4本发明基于放射式接线的智能化高可靠性低压供配电系统的主站多功能电源原理框图；Fig. 4 is a functional block diagram of the master station multifunctional power supply of the intelligent high-reliability low-voltage power supply and distribution system based on the radial wiring of the present invention;

图5本发明基于放射式接线的智能化高可靠性低压供配电系统的主站柴油发电机原理框图；Figure 5 is a functional block diagram of the main station diesel generator of the intelligent high-reliability low-voltage power supply and distribution system based on radial wiring in the present invention;

图6本发明基于放射式接线的智能化高可靠性低压供配电系统的主站并网开关原理框图；Fig. 6 is a functional block diagram of the main station grid-connected switch of the intelligent high-reliability low-voltage power supply and distribution system based on radial wiring in the present invention;

图7本发明基于放射式接线的智能化高可靠性低压供配电系统的区域监控器原理框图；Fig. 7 is a functional block diagram of the regional monitor of the intelligent high-reliability low-voltage power supply and distribution system based on radial wiring in the present invention;

图8本发明基于放射式接线的智能化高可靠性低压供配电系统的区域监控器中协调控制单元架构图；Fig. 8 is an architecture diagram of the coordinated control unit in the regional monitor of the intelligent high-reliability low-voltage power supply and distribution system based on radial wiring in the present invention;

图9本发明基于放射式接线的智能化高可靠性低压供配电系统的区域多功能电源原理框图；Fig. 9 is a schematic block diagram of the regional multifunctional power supply of the intelligent high-reliability low-voltage power supply and distribution system based on radial wiring in the present invention;

图10本发明基于放射式接线的智能化高可靠性低压供配电系统的区域开关原理框图；Fig. 10 is a functional block diagram of the regional switch of the intelligent high-reliability low-voltage power supply and distribution system based on radial wiring in the present invention;

图11本发明基于放射式接线的智能化高可靠性低压供配电系统的区域内支路开关原理框图；。Fig. 11 is a functional block diagram of the regional branch switch of the intelligent high-reliability low-voltage power supply and distribution system based on radial wiring in the present invention;

具体实施方式Detailed ways

如图1所示，基于放射式接线的智能化高可靠性低压供配电系统，包括在供电母线与负荷母线之间的主站设备，以及在负荷母线与负荷之间的N个区域站设备，其中N为大于等于1的自然数；As shown in Figure 1, the intelligent high-reliability low-voltage power supply and distribution system based on radial wiring includes the main station equipment between the power supply bus and the load bus, and N regional station equipment between the load bus and the load , where N is a natural number greater than or equal to 1;

所述主站设备包括主站控制器、主站通信耦合器、主站柴油发电机、主站多功能电源、通信阻波器、主站供电母线电压电流检测模块、并网开关和人机交互界面；所述供电母线的电流输出端，依次与所述通信阻波器、所述主站供电母线电压电流检测模块、所述并网开关和所述负荷母线的电流输入端电连接；所述主站通信耦合器、所述主站柴油发电机和所述主站多功能电源分别与所述负荷母线电连接；所述主站控制器分别与所述主站通信耦合器、所述主站柴油发电机、所述主站多功能电源、所述通信阻波器、所述主站供电母线电压电流检测模块、所述并网开关和人机交互界面通信连接；所述主站多功能电源还分别与所述主站供电母线电压电流检测模块、所述并网开关、所述主站柴油发电机通信连接；The master station equipment includes a master station controller, a master station communication coupler, a master station diesel generator, a master station multifunctional power supply, a communication wave trap, a master station power supply bus voltage and current detection module, a grid-connected switch and a human-computer interaction interface; the current output end of the power supply bus is electrically connected to the communication trap, the main station power supply bus voltage and current detection module, the grid-connected switch and the current input end of the load bus in turn; the The master station communication coupler, the master station diesel generator and the master station multifunctional power supply are respectively electrically connected to the load bus; the master station controller is respectively connected to the master station communication coupler, the master station The diesel generator, the multifunctional power supply of the master station, the communication wave trap, the voltage and current detection module of the power supply bus of the master station, the grid-connected switch and the communication connection of the man-machine interface; the multifunctional power supply of the master station Also respectively communicated with the main station power supply bus voltage and current detection module, the grid-connected switch, and the main station diesel generator;

每个所述区域站设备包括负荷母线与区域负荷子母线之间的区域电压电流检测器、区域开关、区域通信耦合器、区域多功能电源和区域控制器，以及在区域负荷子母线与支路负荷之间的n个支路开关，其中n为大于等于 1的自然数；所述负荷母线的电流输出端，依次通过所述区域电压电流检测器和所述区域开关与所述区域负荷子母线电流输入端电连接，所述区域多功能电源与所述区域负荷子母线电连接；所述区域通信耦合器位于所述负荷母线与所述区域电压电流检测器之间；区域耦合器需要安装在区域开关左侧，否则区域开关跳开后，该区域无法与外部通信。区域耦合器属于区域站设备，在线路1、线路2……线路N的末端；所述区域负荷子母线与n个支路开关电连接；所述区域控制器与所述区域电压电流检测器、所述区域开关、所述区域通信耦合器、所述区域多功能电源和n个支路开关电通信连接；所述区域多功能电源与所述区域开关通信连接。Each of the regional station equipment includes a regional voltage and current detector between the load bus and the regional load sub-bus, a regional switch, a regional communication coupler, a regional multi-functional power supply and a regional controller, and an area between the regional load sub-bus and the branch n branch switches between the loads, wherein n is a natural number greater than or equal to 1; the current output terminal of the load bus passes through the regional voltage and current detector and the regional switch and the current of the regional load sub-bus successively The input terminal is electrically connected, and the regional multifunctional power supply is electrically connected to the regional load sub-bus; the regional communication coupler is located between the load bus and the regional voltage and current detector; the regional coupler needs to be installed in the regional The left side of the switch, otherwise, the area cannot communicate with the outside after the area switch is tripped. The regional coupler belongs to the regional station equipment, and is at the end of line 1, line 2 ... line N; the regional load sub-bus is electrically connected to n branch switches; the regional controller is connected to the regional voltage and current detector, The regional switch, the regional communication coupler, the regional multifunctional power supply are electrically connected to the n branch switches; the regional multifunctional power supply is connected to the regional switch in communication.

系统设置主站和若干负荷区域，主站和各个负荷区域中均设有监控器和多功能电源；各个监控器之间通过载波方式利用已有电力线路进行信号通信，主站监控器设有最高优先级，可使能或关闭各个区域监控器的具体功能；主站多功能电源通过主电源模式和辅助电源模式之间切换实现供电母线与柴油发电机之间的无缝切换，并设有对系统接入点进行实现谐波和无功动态跟踪补偿功能；区域控制器设有区域内故障切除、故障排除后试起动及自动恢复并网功能，实现区域内故障自愈；区域多功能电源设有区域试起动功能，具有备用电模式、有无功补偿模式，在无功补偿模式下实现常规线路无功补偿功能和大功率负荷辅助起动补偿功能。The system sets up the master station and several load areas. The master station and each load area are equipped with monitors and multi-functional power supplies; each monitor uses the existing power line for signal communication through carrier waves. Priority, which can enable or disable the specific functions of each area monitor; the multi-function power supply of the main station realizes the seamless switching between the power supply bus and the diesel generator through switching between the main power mode and the auxiliary power mode, and has a pair The system access point realizes the harmonic and reactive power dynamic tracking compensation function; the regional controller is equipped with fault removal in the region, trial start after fault removal and automatic recovery of grid connection functions to realize fault self-healing in the region; regional multi-functional power supply It has an area trial start function, a backup power mode, and a reactive power compensation mode. In the reactive power compensation mode, it realizes the reactive power compensation function of conventional lines and the auxiliary starting compensation function of high-power loads.

如图2和图3所示，所述主站控制器包括协调控制单元层和功能控制单元层；所述协调控制单元层包括主站通信控制单元和主站功能协调控制单元；所述功能控制单元层包括供电母线检测单元、并网开关控制单元、多功能电源控制单元、柴油发电机控制单元、通信阻波器监控单元和通信收发控制单元；所述人机交互界面与所述主站通信控制单元通信连接，所述主站通信控制单元和所述主站功能协调控制单元通信连接；所述主站功能协调控制单元分别通过所述供电母线检测单元、所述并网开关控制单元、所述多功能电源控制单元、所述柴油发电机控制单元与所述主站供电母线电压电流检测模块、所述并网开关、所述主站多功能电源、所述主站柴油发电机通信连接，所述主站通信控制单元分别通过所述通信阻波器监控单元和所述通信收发控制单元与所述通信阻波器和主站通信耦合器通信连接。As shown in Figure 2 and Figure 3, the master station controller includes a coordination control unit layer and a function control unit layer; the coordination control unit layer includes a master station communication control unit and a master station function coordination control unit; the function control The unit layer includes a power supply bus detection unit, a grid-connected switch control unit, a multi-function power supply control unit, a diesel generator control unit, a communication trap monitoring unit, and a communication transceiver control unit; the man-machine interface communicates with the master station The control unit is connected in communication, and the communication control unit of the master station is connected with the function coordination control unit of the master station; The multifunctional power supply control unit, the diesel generator control unit are communicatively connected with the master station power supply bus voltage and current detection module, the grid-connected switch, the master station multifunctional power supply, and the master station diesel generator, The master station communication control unit is communicatively connected with the communication wave trap and the master station communication coupler through the communication wave trap monitoring unit and the communication transceiver control unit respectively.

主站控制器和各个区域控制器通过各自的主站通信耦合器和区域通信耦合器、利用已有电力线路实现接收或发送系统内部的通信联络信号。主站控制器设置最高优先级，可使能或关闭各个区域监控器功能。The master station controller and each regional controller use the existing power lines to receive or send communication signals within the system through their respective master station communication couplers and regional communication couplers. The master station controller sets the highest priority and can enable or disable the various zone supervisor functions.

主站控制器设置各个负荷区域的供电优先级，并设有甩负荷保重要负荷供电功能。当检测到负荷母线电压过低时，主站控制器按照事先设定的供电优先级，逐级向各个区域控制器发送负荷切除指令，直至负荷母线电压恢复正常值，保证优先级高的负荷区域供电。The master station controller sets the power supply priority of each load area, and has the function of load shedding to keep important load power supply. When it is detected that the load bus voltage is too low, the master station controller will send load shedding instructions to each area controller step by step according to the preset power supply priority until the load bus voltage returns to the normal value, ensuring that the load area with high priority powered by.

如图4所示，所述主站多功能电源包括主站主控制单元、主站基本控制单元和主站主电路，所述主站基本控制单元包括主站电源功能实现基本控制单元和主站储能元件管理单元，所述主电路包括主站软启动开关组K11、主站变流电路单元IGBT11和主站储能元件单元BMS11，所述主站供电母线电压电流检测模块、所述并网开关、所述主站柴油发电机和所述主站控制器与所述主站主控制单元通信连接，所述主站主控制单元与所述主站电源功能实现基本控制单元和所述主站储能元件管理单元通信连接；所述主站储能元件单元BMS11与所述主站储能元件管理单元通信连接；所述主站软启动开关组 K11和所述主站变流电路单元IGBT11与所述主站电源功能实现基本控制单元通信连接；所述主站储能元件单元BMS11与所述主站变流电路单元IGBT11 电连接，所述主站变流电路单元IGBT11与所述主站软启动开关组K11的一端电连接，所述主站软启动开关组K11的另一端与所述负荷母线电连接；在所述主站软启动开关组K11和所述主站变流电路单元IGBT11之间设有采样装置CPT11，采样装置CPT11信号输出端与所述主站电源功能实现基本控制单元通信连接；在所述主站变流电路单元IGBT11和主站储能元件单元BMS11 之间设有采样装置CPT12，采样装置CPT12分别与所述主站电源功能实现基本控制单元和所述主站储能元件管理单元通信连接；As shown in Figure 4, the master station multifunctional power supply includes a master station main control unit, a master station basic control unit and a master station main circuit, and the master station basic control unit includes a master station power supply function realization basic control unit and a master station The energy storage element management unit, the main circuit includes the soft start switch group K11 of the master station, the inverter circuit unit IGBT11 of the master station and the energy storage element unit BMS11 of the master station, the voltage and current detection module of the power supply bus of the master station, the grid-connected The switch, the main station diesel generator and the main station controller are connected in communication with the main station main control unit, and the main station main control unit and the main station power supply function realize the basic control unit and the main station The energy storage element management unit is connected in communication; the energy storage element unit BMS11 of the master station is connected with the energy storage element management unit of the master station; the soft start switch group K11 of the master station and the inverter circuit unit IGBT11 of the master station are connected with The power supply function of the master station realizes the communication connection of the basic control unit; the energy storage element unit BMS11 of the master station is electrically connected with the inverter circuit unit IGBT11 of the master station, and the inverter circuit unit IGBT11 of the master station is connected with the soft One end of the start switch group K11 is electrically connected, and the other end of the master station soft start switch group K11 is electrically connected to the load bus; between the master station soft start switch group K11 and the master station converter circuit unit IGBT11 A sampling device CPT11 is arranged between them, and the signal output terminal of the sampling device CPT11 realizes the communication connection with the basic control unit of the power supply function of the master station; a sampling device is arranged between the converter circuit unit IGBT11 of the master station and the energy storage element unit BMS11 of the master station The device CPT12 and the sampling device CPT12 are respectively connected with the main station power supply function to realize the basic control unit and the main station energy storage element management unit;

所述主站多功能电源设置主电源模式和辅助电源模式，由主站电源功能实现基本控制单元和主站储能元件管理单元配合实现；主电源模式下，基本控制单元层控制主回路，储能元件单元放电提供配电网所需的全部能量。辅助电源模式下，储能元件单元只提供功能所需的补偿用的能量部分或充电，配电网所需的主要能量来自供电母线接入点。不同模式，功能不同。主站控制器使能主站多功能电源自动模式切换，主站多功能电源实现供电母线与主站柴油发电机之间的无缝切换。主电源模式与辅助电源模式，采用的是一套硬件电路，只是软件控制算法不同。软件控制算法涉及四种情况，主电源控制模式，辅助电源控制模式，主电源模式切换为辅助电源模式，辅助电源模式切换为主电源模式，均为基本控制单元层中的软件控制算法实现。所有工况下，储能元件单元都是处于工作状态。例如，主电源模式或模式切换过程中，储能元件大量放电。辅助模式，储能元件充电或释放补偿所用能量或处于浮充状态或涓流热备状态。The multifunctional power supply of the master station is set with a main power supply mode and an auxiliary power supply mode, and the basic control unit and the energy storage element management unit of the main station are realized by the cooperation of the main station power supply function; in the main power supply mode, the basic control unit layer controls the main circuit, the storage The discharge of the energy element unit provides all the energy required by the distribution network. In the auxiliary power supply mode, the energy storage unit only provides the energy required for compensation or charging, and the main energy required by the distribution network comes from the access point of the power supply bus. Different modes have different functions. The master station controller enables the automatic mode switching of the master station multi-function power supply, and the master station multi-function power supply realizes seamless switching between the power supply bus and the master station diesel generator. The main power supply mode and the auxiliary power supply mode use a set of hardware circuits, but the software control algorithms are different. The software control algorithm involves four situations, the main power control mode, the auxiliary power control mode, the main power mode switching to the auxiliary power mode, and the auxiliary power mode switching to the main power mode, all of which are realized by the software control algorithm in the basic control unit layer. Under all working conditions, the energy storage element unit is in working condition. For example, during mains mode or during mode switching, the energy storage element is heavily discharged. In the auxiliary mode, the energy storage element charges or releases the energy used for compensation or is in a floating charging state or a trickle hot standby state.

在供电母线正常供电情况下，主站多功能电源处于辅助电源模式，对大小和频率变化的谐波以及变化的无功动态损耗进行实现动态跟踪补偿。In the normal power supply condition of the power supply bus, the multi-function power supply of the main station is in the auxiliary power supply mode, and realizes dynamic tracking compensation for the harmonics with changing size and frequency and the changing reactive dynamic loss.

在供电母线正常供电出现异常时，系统跳开并网开关，同时主站多功能电源由辅助电源模式切换到主电源模式；主站多功能电源作为系统主电源维持系统内的电压和频率；同时起动主站柴油发电机，当主站柴油发电机完成起动进入正常工作状态以后，主站多功能电源由主电源模式转为辅助电源模式，柴油发电机作为系统主电源维持系统内的电压和频率。When the normal power supply of the power supply bus is abnormal, the system jumps off the grid-connected switch, and at the same time the multifunctional power supply of the main station switches from the auxiliary power supply mode to the main power supply mode; the multifunctional power supply of the main station serves as the main power supply of the system to maintain the voltage and frequency in the system; at the same time Start the main station diesel generator. After the main station diesel generator completes the startup and enters the normal working state, the main station multi-function power supply will change from the main power supply mode to the auxiliary power supply mode, and the diesel generator will be used as the main power supply of the system to maintain the voltage and frequency in the system. .

当系统检测到供电母线恢复正常后，主站多功能电源转为主电源模式替代主站柴油发电机作为系统主电源，并以检测到的供电母线为基准调整系统的电压、频率和相位，完成调整后合并并网开关，主站多功能电源由主电源模式切换到辅助电源模式，恢复供电母线为系统供电。When the system detects that the power supply bus returns to normal, the multi-function power supply of the main station will switch to the main power supply mode to replace the diesel generator of the main station as the main power supply of the system, and adjust the voltage, frequency and phase of the system based on the detected power supply bus. After the adjustment, the grid-connected switch is merged, the multi-function power supply of the main station is switched from the main power supply mode to the auxiliary power supply mode, and the power supply bus is restored to supply power to the system.

如图6所示，所述并网开关包括并网开关控制器和并网开关电路，所述主站控制器和所述主站多功能电源与所述并网开关控制器通信连接，所述并网开关电路为并网开关K601；所述并网开关K601的一端与所述供电母线电连接、所述并网开关K601的另一端与所述负荷母线电连接；在所述并网开关K601与所述供电母线之间设有采样装置CTP601，在并网开关K601与所述负荷母线之间设有采样装置CPT602，所述采样装置CTP601和采样装置CPT602的信号输出端与所述并网开关控制器通信连接；所述并网开关K601 与所述并网开关控制器通信连接；As shown in Figure 6, the grid-connected switch includes a grid-connected switch controller and a grid-connected switch circuit, the master station controller and the master station multifunctional power supply are connected in communication with the grid-connected switch controller, the The grid-connected switch circuit is a grid-connected switch K601; one end of the grid-connected switch K601 is electrically connected to the power supply bus, and the other end of the grid-connected switch K601 is electrically connected to the load bus; A sampling device CTP601 is provided between the power supply bus and a sampling device CPT602 is provided between the grid-connected switch K601 and the load bus. The controller is connected in communication; the grid-connected switch K601 is connected in communication with the grid-connected switch controller;

如图5所示，所述主站柴油发电机包括主站柴油发电机控制器和柴油发电机控制电路，所述主站控制器和主站多功能电源与所述主站柴油发电机控制器通信连接；所述柴油发电机控制电路包括柴油发电机和柴油发电机开关 K701，所述柴油发电机通过所述柴油发电机开关K701与所述负荷母线电连接，所述柴油发电与所述柴油发电机开关K701之间设有采样装置CPT702，所述柴油发电机开关K701与所述负荷母线之间设有采样装置CPT701；所述柴油发电机、采样装置CPT702、采样装置CPT701和柴油发电机开关K701 分别与所述主站柴油发电机控制器通信连接。As shown in Figure 5, the main station diesel generator includes a main station diesel generator controller and a diesel generator control circuit, and the main station controller and the main station multifunctional power supply are connected with the main station diesel generator controller Communication connection; the diesel generator control circuit includes a diesel generator and a diesel generator switch K701, the diesel generator is electrically connected to the load bus through the diesel generator switch K701, and the diesel generator is connected to the diesel generator A sampling device CPT702 is provided between the generator switch K701, and a sampling device CPT701 is provided between the diesel generator switch K701 and the load bus; the diesel generator, the sampling device CPT702, the sampling device CPT701 and the diesel generator switch K701 is respectively connected to the main station diesel generator controller in communication.

如图7和图8所示，所述区域控制器包括区域协调控制单元层和区域功能控制单元层；所述区域协调控制单元层包括区域通信控制单元和区域功能协调控制单元；所述区域功能控制单元层包括区域检测单元、区域开关控制单元、区域多功能电源控制单元、支路开关状态收集控制单元和通信收发控制单元；所述区域通信控制单元和所述区域功能协调控制单元通信连接；所述区域功能协调控制单元分别通过所述区域检测单元、所述区域开关控制单元、所述区域多功能电源控制单元、所述支路开关状态收集控制单元与所述区域电压电流检测器、所述区域开关、所述区域多功能电源、n个所述支路开关通信连接，所述区域通信控制单元通过所述通信收发控制单元与区域通信耦合器通信连接。As shown in Figures 7 and 8, the regional controller includes a regional coordination control unit layer and a regional function control unit layer; the regional coordination control unit layer includes a regional communication control unit and a regional function coordination control unit; the regional function The control unit layer includes an area detection unit, an area switch control unit, an area multifunctional power supply control unit, a branch switch state collection control unit, and a communication sending and receiving control unit; the area communication control unit and the area function coordination control unit are connected in communication; The regional function coordination control unit is connected with the regional voltage and current detector, the regional multifunctional power supply control unit, the branch switch state collection control unit and the regional voltage and current detector respectively through the regional detection unit, the regional switch control unit, the regional multifunctional power supply control unit, and the The regional switch, the regional multifunctional power supply, and n branch switches are communicatively connected, and the regional communication control unit is communicatively connected with the regional communication coupler through the communication sending and receiving control unit.

区域控制器设置区域内故障切除、故障排除后试起动及自动恢复并网功能，实现区域内的故障自愈。The area controller sets the functions of fault removal in the area, trial start after fault removal, and automatic restoration of grid connection to realize self-healing of faults in the area.

区域内各负荷支路与区域负荷子母线之间均设有开关。当支路负荷发生故障时，断开负荷所在支路的开关，切除故障，区域开关保持闭合、区域控制器将收到具体所在故障的支路开关的断开信号反馈，并将信号上传给主站控制器用以在主站人机交互界面上显示。There are switches between each load branch in the area and the sub-bus of the area load. When the branch load fails, disconnect the switch of the branch where the load is located, remove the fault, keep the regional switch closed, and the regional controller will receive the disconnection signal feedback of the specific faulty branch switch, and upload the signal to the main The station controller is used to display on the man-machine interface of the master station.

当支路负荷发生故障且负荷所在支路开关拒动，或故障点位于区域负荷子母线上时，断开区域开关，区域控制器向主站控制器上传故障报文，并授权区域多功能电源试起动功能；试起动失败、确认故障依然存在后，区域控制器提交报文给主站控制器，要求人工排除故障；试起动成功、确认故障已经排除后，区域多功能电源以线路为基准调整区域内的电压、频率和相位，完成调整后闭合区域开关，恢复线路向区域内供电。When the branch load fails and the branch switch where the load is located refuses to move, or the fault point is located on the sub-bus of the regional load, the regional switch is disconnected, and the regional controller uploads a fault message to the master station controller, and authorizes the regional multi-functional power supply Trial start function; after the trial start fails and it is confirmed that the fault still exists, the regional controller submits a message to the main station controller and requires manual troubleshooting; after the trial start is successful and the fault is confirmed to be eliminated, the regional multi-functional power supply is adjusted based on the line After the voltage, frequency and phase in the area are adjusted, the area switch is closed to restore the line to supply power to the area.

如图9所示，所述区域多功能电源包括区域主控制单元、区域基本控制单元和区域主电路，所述区域基本控制单元包括区域电源功能实现基本控制单元和区域储能元件管理单元，所述区域主电路包括区域软启动开关组 K21、区域变流电路单元IGBT21和区域储能元件单元BMS21，所述区域控制器与所述区域主控制单元通信连接，所述区域主控制单元通信连与所述区域电源功能实现基本控制单元和所述区域储能元件管理单元通信连接；所述区域储能元件单元BMS21与所述区域储能元件管理单元通信连接；所述区域软启动开关组K21和所述区域变流电路单元IGBT21与所述区域电源功能实现基本控制单元通信连接；所述区域储能元件单元BMS21与所述区域变流电路单元IGBT21电连接，所述区域变流电路单元IGBT21与所述区域软启动开关组K21的一端电连接，所述区域软启动开关组K21的另一端与所述区域负荷子母线电连接；在所述区域软启动开关组K21和所述区域变流电路单元IGBT21之间设有采样装置CPT21，采样装置CPT21信号输出端与所述区域电源功能实现基本控制单元通信连接；在所述区域变流电路单元IGBT21和区域储能元件单元BMS21之间设有采样装置CPT22，采样装置CPT22分别与所述区域电源功能实现基本控制单元和所述区域储能元件管理单元通信连接；As shown in Figure 9, the regional multifunctional power supply includes a regional main control unit, a regional basic control unit and a regional main circuit, and the regional basic control unit includes a regional power supply function realization basic control unit and a regional energy storage element management unit. The regional main circuit includes a regional soft start switch group K21, a regional converter circuit unit IGBT21 and a regional energy storage element unit BMS21, the regional controller is connected to the regional main control unit, and the regional main control unit is connected to The regional power supply function realizes the communication connection between the basic control unit and the regional energy storage element management unit; the regional energy storage element unit BMS21 communicates with the regional energy storage element management unit; the regional soft start switch group K21 and The regional conversion circuit unit IGBT21 is connected with the regional power supply function to realize the communication connection with the basic control unit; the regional energy storage element unit BMS21 is electrically connected to the regional conversion circuit unit IGBT21, and the regional conversion circuit unit IGBT21 and One end of the regional soft-start switch group K21 is electrically connected, and the other end of the regional soft-start switch group K21 is electrically connected to the regional load sub-bus; the regional soft-start switch group K21 and the regional converter circuit A sampling device CPT21 is provided between the unit IGBT21, and the signal output terminal of the sampling device CPT21 realizes the communication connection with the basic control unit of the regional power supply function; a sampling device is provided between the regional conversion circuit unit IGBT21 and the regional energy storage element unit BMS21. The device CPT22 and the sampling device CPT22 are respectively connected to the basic control unit for realizing the regional power supply function and the regional energy storage element management unit;

区域多功能电源设置区域试起动功能。在收到区域控制器授权后，区域多功能电源作为该区域内主电源尝试建立电压和频率，并逐渐恢复区域内各个负荷支路供电，并向区域控制器上报试起动结果。The regional multi-function power supply sets the regional trial start function. After receiving the authorization from the regional controller, the regional multi-functional power supply will try to establish the voltage and frequency as the main power supply in the region, gradually restore the power supply of each load branch in the region, and report the test start results to the regional controller.

如图9所示，所述区域多功能电源设置备用电模式和无功补偿模式，由区域电源功能实现基本控制单元和区域储能元件管理单元配合实现；备用电模式和无功补偿模式是由基本控制单元层的“电源功能实现基本控制单元”和“储能元件管理单元”共同实现的。采用的是一套硬件电路，只是软件控制算法不同。备用电模式下，基本控制单元层控制主回路，储能元件单元放电，提供全部能量。无功补偿模式下，储能元件单元只提供功能所需的补偿用的能量部分或充电，能量主要来自负荷母线。电路相同，软件不同，不同模式，功能不同。As shown in Figure 9, the regional multifunctional power supply is provided with a backup power mode and a reactive power compensation mode, which are realized by the cooperation of the regional power supply function realization basic control unit and the regional energy storage element management unit; the backup power mode and the reactive power compensation mode It is jointly realized by the "power supply function realization basic control unit" and the "energy storage element management unit" of the basic control unit layer. It adopts a set of hardware circuit, but the software control algorithm is different. In standby power mode, the basic control unit layer controls the main circuit, and the energy storage element unit discharges to provide all energy. In reactive power compensation mode, the energy storage element unit only provides the energy part or charging required for compensation, and the energy mainly comes from the load bus. The circuit is the same, the software is different, the modes are different, and the functions are different.

区域多功能电源设置备用电模式。当与负荷母线连接的线路供电异常，区域控制器控制断开与负荷母线连接的区域开关，区域多功能电源转为该区域内的备用电源，为该区域内的负荷供电。The regional multi-function power supply is set to standby power mode. When the power supply of the line connected to the load bus is abnormal, the regional controller controls to disconnect the regional switch connected to the load bus, and the regional multi-functional power supply is transferred to the backup power supply in the region to supply power to the loads in the region.

当与负荷母线连接的线路供电恢复正常，区域多功能电源以线路为基准调整区域内的电压、频率和相位，完成调整后闭合区域开关，区域多功能电源由备用电模式切换到无功补偿模式，恢复线路为区域供电。When the power supply of the line connected to the load bus returns to normal, the regional multi-functional power supply adjusts the voltage, frequency and phase in the area based on the line, and after the adjustment is completed, close the regional switch, and the regional multi-functional power supply switches from the standby power mode to reactive power compensation mode to restore line power to the zone.

区域多功能电源具有无功补偿模式。在无功模式下，区域多功能电源实现常规线路无功补偿功能和大功率负荷辅助起动补偿功能。The regional multifunctional power supply has a reactive power compensation mode. In reactive power mode, the regional multifunctional power supply realizes the reactive power compensation function of conventional lines and the auxiliary starting compensation function of high-power loads.

正常工况下，连接负荷母线和区域负荷子母线之间的线路无功损耗和区域内负荷无功损耗相对稳定、不会大幅突变，区域多功能电源仅对所在区域做稳定的常规无功补偿。当区域内有大功率电动机负荷起动时，无功损耗大幅突变，导致区域负荷子母线、甚至负荷母线电压发生大幅跌落，区域多功能电源瞬间加大无功补偿量，减少母线电压跌落幅度；当起动完成后，区域多功能电源恢复为仅做稳定的常规无功补偿。Under normal working conditions, the line reactive power loss between the connecting load busbar and the regional load sub-busbar and the reactive power loss of the load in the region are relatively stable and will not change drastically. The regional multifunctional power supply only performs stable conventional reactive power compensation for the region. . When a large-power motor load starts in the area, the reactive power loss changes drastically, resulting in a large drop in the voltage of the regional load sub-bus and even the load bus. The regional multi-functional power supply instantly increases the amount of reactive power compensation to reduce the voltage drop of the bus; After the start-up is completed, the regional multi-function power supply returns to only stable conventional reactive power compensation.

如图10所示，所述区域开关包括区域开关控制器和区域开关电路，所述区域控制器和所述区域多功能电源与所述区域开关控制器通信连接，所述区域开关电路为区域开关K501；所述区域开关K501的一端与所述负荷母线电连接、所述区域开关K501的另一端与所述区域负荷子母线电连接；在所述区域开关K501与所述负荷母线之间设有采样装置CPT501，在区域开关 K501与所述区域负荷子母线之间设有采样装置CPT502，所述采样装置CPT501和采样装置CPT502的信号输出端与所述区域开关控制器通信连接；所述区域开关K501与所述区域开关控制器通信连接；As shown in Figure 10, the regional switch includes a regional switch controller and a regional switch circuit, the regional controller and the regional multifunctional power supply are communicatively connected to the regional switch controller, and the regional switch circuit is a regional switch K501; one end of the area switch K501 is electrically connected to the load bus, and the other end of the area switch K501 is electrically connected to the area load sub-bus; between the area switch K501 and the load bus is set The sampling device CPT501 is provided with a sampling device CPT502 between the regional switch K501 and the regional load sub-bus, and the signal output terminals of the sampling device CPT501 and the sampling device CPT502 are connected in communication with the regional switch controller; the regional switch K501 communicates with the area switch controller;

如图11所示，所述支路开关包括支路开关控制器和支路开关电路，所述区域控制器与所述支路开关控制器通信连接，所述支路开关电路为支路开关K401，所述支路开关K401的一端与区域负荷子母线电连接，所述支路开关K401的另一端与所述支路负荷电连接，所述支路开关K401与所述支路开关控制器通信连接。As shown in Figure 11, the branch switch includes a branch switch controller and a branch switch circuit, the regional controller communicates with the branch switch controller, and the branch switch circuit is a branch switch K401 , one end of the branch switch K401 is electrically connected to the regional load sub-bus, the other end of the branch switch K401 is electrically connected to the branch load, and the branch switch K401 communicates with the branch switch controller connect.

实施例2、基于放射式接线的智能化高可靠性低压供配电方法，包括如下步骤：Embodiment 2. An intelligent high-reliability low-voltage power supply and distribution method based on radial wiring includes the following steps:

(1)安装实施例1的方法搭建基于放射式接线的智能化高可靠性低压供配电系统搭建主站设备和区域站设备，并连接主站设备和区域站设备的电路线路和通信线路；(1) Install the method of embodiment 1 to build an intelligent high-reliability low-voltage power supply and distribution system based on radial wiring to build master station equipment and regional station equipment, and connect the circuit lines and communication lines of the master station equipment and regional station equipment;

(1-1)根据实际供配电容量和电压等级需要，选择并网开关、主站柴油发电机和主站多功能电源；(1-1) According to the actual power supply and distribution capacity and voltage level needs, select the grid-connected switch, main station diesel generator and main station multi-functional power supply;

(1-2)根据各个负荷区域的用电容量和电压，选择区域开关、区域多功能电源；(1-2) According to the power consumption capacity and voltage of each load area, select the regional switch and regional multi-functional power supply;

(1-3)根据负荷区域的具体负荷大小和电压，选择具体负荷支路的支路开关；(1-3) According to the specific load size and voltage of the load area, select the branch switch of the specific load branch;

(1-4)系统设置主站设备：在供电母线接入点后依次接入通信阻波器、主站供电母线电压电流检测模块、并网开关，到达负荷母线；负荷母线电连接主站通信耦合器、主站柴油发电机和主站多功能电源；设置主站控制器和人机交互界面；所述主站控制器分别与所述主站通信耦合器、所述主站柴油发电机、所述主站多功能电源、所述通信阻波器、所述主站供电母线电压电流检测模块、所述并网开关和人机交互界面通信连接；所述主站多功能电源还分别与所述主站供电母线电压电流检测模块、所述并网开关、所述主站柴油发电机通信连接；(1-4) The system sets up the main station equipment: after the access point of the power supply bus, the communication wave trap, the main station power supply bus voltage and current detection module, and the grid switch are sequentially connected to the load bus; the load bus is electrically connected to the main station for communication Coupler, main station diesel generator and main station multifunctional power supply; master station controller and man-machine interaction interface are set; said main station controller communicates with said main station coupler, said main station diesel generator, The multifunctional power supply of the master station, the communication wave trap, the voltage and current detection module of the power supply bus of the master station, the grid-connected switch and the human-computer interaction interface are connected in communication; the multifunctional power supply of the master station is also connected with the The master station power supply bus voltage and current detection module, the grid-connected switch, and the master station diesel generator communication connection;

系统根据负荷区域分布情况设置负荷区域的区域站设备：在负荷母线上接供电线路，线路另一端到达负荷区域后，依次连接区域电压电流检测器、区域开关，到达区域负荷子母线；区域负荷子母线连接区域通信耦合器、区域多功能电源；在区域负荷子母线与支路负荷之间设有n个支路开关；设置区域控制器；所述区域控制器与所述区域电压电流检测器、所述区域开关、所述区域通信耦合器、所述区域多功能电源和n 个支路开关电通信连接；所述区域多功能电源与所述区域开关通信连接。The system sets the regional station equipment in the load area according to the distribution of the load area: connect the power supply line to the load bus, and after the other end of the line reaches the load area, connect the area voltage and current detector and the area switch in sequence to reach the area load sub-bus; The bus bar is connected to a regional communication coupler and a regional multifunctional power supply; n branch switches are arranged between the regional load sub-bus and the branch load; a regional controller is set; the regional controller is connected to the regional voltage and current detector, The regional switch, the regional communication coupler, the regional multifunctional power supply are electrically connected to the n branch switches; the regional multifunctional power supply is connected to the regional switch in communication.

系统根据负荷所在位置划分若干负荷区域，每个负荷区域与系统主站负荷母线之间均由各自的线路连接，形成辐射形式接线。The system divides several load areas according to the location of the load, and each load area is connected to the load bus of the system master station by its own line to form a radial connection.

(2)在主站人机交互界面录入主站设备和区域站设备中设备类型、特性和参数，设置各个负荷区域的负荷等级和供电要求；(2) Enter the equipment type, characteristics and parameters of the main station equipment and regional station equipment on the human-computer interaction interface of the main station, and set the load level and power supply requirements of each load area;

(3)在人机交互界面输入对应控制策略，控制主站设备功能，控制各个区域站设备功能；(3) Input the corresponding control strategy on the human-computer interaction interface, control the equipment functions of the master station, and control the equipment functions of each regional station;

(4)启动运行，然后根据区域负荷实现自检状态、静态运行状态、动态协调状态、主站设备故障状态和系统停机状态。(4) Start the operation, and then realize the self-inspection state, static operation state, dynamic coordination state, master station equipment failure state and system shutdown state according to the regional load.

所述自检状态为：系统搭建完成、主站控制器及区域控制器策略预设完成、系统启动，主站控制器对主站设备、区域控制器对所属区域站设备进行自检；若系统状态正常，则在人机交互界面上显示是否启动，等待下一步操作；若系统存在故障，在人机交互界面显示故障信息，禁止启动，等待人工故障排除；若发现具体设备故障，在人机交互界面上将故障设备屏蔽，或人工排除设备故障后再次启动自检；The self-inspection status is: the system is set up, the master station controller and the regional controller strategy preset are completed, and the system is started. If the status is normal, it will display whether it is started on the human-computer interaction interface, and wait for the next operation; if there is a fault in the system, the fault information will be displayed on the human-computer Shield the faulty device on the interactive interface, or start the self-test again after manually troubleshooting the device;

静态运行状态为：主站设备均正常运行，区域内负荷没有大功率电动机直接起动；主站柴油发电机处于冷备份不起动状态，主站多功能电源处于辅助电源状态；N个区域多功能电源处于无功补偿模式，且仅对所在区域做稳定的常规无功补偿。The static running state is: the main station equipment is running normally, the load in the area does not have a high-power motor to start directly; the main station diesel generator is in the state of cold backup and does not start, the main station multi-function power supply is in the auxiliary power supply state; N regional multi-function power supplies It is in reactive power compensation mode, and only performs stable conventional reactive power compensation in the area.

动态协调状态包括7种动态协调状态，具体如下：The dynamic coordination state includes 7 dynamic coordination states, as follows:

动态协调状态1：主站设备均正常运行，区域内负荷有大功率电动机直接起动时，主站柴油发电机处于冷备份不起动状态，主站多功能电源处于辅助电源状态；N个区域多功能电源处于无功补偿模式，起动过程中大功率电动机所在区域的区域多功能电源起用大功率负荷辅助起动补偿功能，补偿大幅突变的无功损耗，抑制区域负荷子母线、负荷母线电压波动；Dynamic coordination state 1: The equipment of the main station is in normal operation, and when the load in the area is directly started by a high-power motor, the diesel generator of the main station is in the state of cold backup and non-starting, and the multi-functional power supply of the main station is in the state of auxiliary power supply; N areas are multi-functional The power supply is in reactive power compensation mode. During the starting process, the regional multifunctional power supply in the area where the high-power motor is located uses the high-power load auxiliary starting compensation function to compensate for the reactive power loss of a large mutation, and suppress the voltage fluctuation of the regional load sub-bus and load bus;

动态协调状态2：主站设备均正常运行，一个或多个负荷区域内发生故障时，跳开故障所在支路的支路开关，故障被成功切除，故障所在的区域开关保持闭合状态，故障所在区域的区域控制器收到支路开关反馈信号后，上传给主站控制器，并显示在人机交互界面上，通知人工维修故障支路；Dynamic coordination state 2: The main station equipment is running normally. When a fault occurs in one or more load areas, the branch switch of the branch where the fault is located is tripped, and the fault is successfully removed. The switch of the area where the fault is located remains closed. After receiving the branch switch feedback signal, the regional controller in the area uploads it to the main station controller and displays it on the human-computer interaction interface to notify manual maintenance of the faulty branch;

动态协调状态3，主站设备均正常运行，一个或多个负荷区域内发生故障后，故障所在支路的支路开关拒动，或故障点位于区域负荷子母线上时，导致故障所在的区域开关断开；故障所在的区域控制器与故障所在的区域多功能电源相互配合实现试起动、向主站控制器发送申请重新并网报文、自动恢复并网功能的循环过程中，尝试区域内的故障自愈；如果不能实现故障自愈，上传给主站控制器，并显示在人机交互界面上，通知人工维修故障支路；In dynamic coordination state 3, the main station equipment is running normally. After a fault occurs in one or more load areas, the branch switch of the branch where the fault is located refuses to move, or when the fault point is located on the sub-bus of the regional load, the area where the fault is located The switch is turned off; the regional controller where the fault is located cooperates with the multi-functional power supply in the area where the fault is located to realize the trial start, send a message to the main station controller to apply for re-connecting to the grid, and automatically restore the function of grid-connecting. fault self-healing; if the fault self-healing cannot be achieved, it will be uploaded to the main station controller and displayed on the human-computer interaction interface to notify manual maintenance of the faulty branch;

动态协调状态4：主站设备均正常运行，一个或多个负荷区域内发生故障后，故障所在支路的支路开关拒动，或故障点位于区域负荷子母线上时，导致故障所在的区域开关断开；故障区域控制器主导的区域内的故障自愈失败，区域开关保持断开状态，且区域控制器提交报文给主站控制器并显示在主站人机交互界面上，要求人工排除故障；Dynamic coordination state 4: The main station equipment is running normally. After a fault occurs in one or more load areas, the branch switch of the branch where the fault is located refuses to move, or when the fault point is located on the sub-bus of the regional load, the area where the fault is located The switch is off; the fault self-healing in the area dominated by the fault area controller fails, and the area switch remains in the off state, and the area controller submits a message to the master station controller and displays it on the man-machine interface of the master station, requiring manual Troubleshooting;

动态协调状态5：主站设备均正常运行，由于供电母线电压偏低或N 个区域的总负荷过大，导致负荷母线电压偏低，主站控制器按照事先设定的供电优先级，逐级向各个区域控制器发送区域负荷切除指令，直至负荷母线电压恢复正常值，保证优先级高的负荷区域供电；Dynamic coordination state 5: The main station equipment is running normally. Due to the low voltage of the power supply bus or the total load of N areas is too large, the load bus voltage is low. Send regional load shedding instructions to each regional controller until the load bus voltage returns to the normal value to ensure the power supply for the load region with high priority;

动态协调状态6：供电母线发生异常，主站多功能电源采取主电源模式，将系统内部的供电无缝切换到主站柴油发电机上；当检测到供电母线恢复正常，关闭柴油发电机，主站多功能电源采取主电源模式，将系统内部的供电无缝切换回供电母线上；各区域负荷处于正常工作状态；Dynamic coordination state 6: When the power supply bus is abnormal, the multi-function power supply of the master station adopts the main power supply mode, and the power supply inside the system is seamlessly switched to the diesel generator of the master station; when it is detected that the power supply bus returns to normal, the diesel generator is turned off, and the master station The multi-functional power supply adopts the main power supply mode to seamlessly switch the power supply inside the system back to the power supply bus; the loads in each area are in normal working condition;

动态协调状态7：供电母线发生异常，主站多功能电源的主电源模式未被使能、且区域多功能电源以备用电模式被使能，各个区域控制器断开区域开关，区域多功能电源进入备用电模式，为所在区域内的负荷供电；当检测到供电母线恢复正常，区域多功能电源将区域内部的供电无缝切换回供电母线上；区域多功能电源的备用电模式未被使能，区域多功能电源为所在区域内负荷供电中断。Dynamic coordination state 7: An abnormality occurs on the power supply bus, the main power supply mode of the multi-functional power supply of the master station is not enabled, and the multi-functional power supply of the area is enabled in the backup power mode, each area controller disconnects the area switch, and the area multi-function power supply The power supply enters the standby power mode to supply power to the loads in the area; when it is detected that the power supply bus returns to normal, the regional multi-functional power supply seamlessly switches the power supply in the area back to the power supply bus; the standby power mode of the regional multi-functional power supply does not is enabled, the regional multi-functional power supply interrupts the power supply for the loads in the region.

主站设备故障状态：主站设备发生故障、且区域多功能电源的备用电模式被使能，各个区域控制器断开区域开关，区域多功能电源进入备用电模式，为所在区域内的负荷供电，直至区域多功能电源存储的能量耗尽；区域多功能电源的备用电模式未被使能，所在区域内负荷供电中断；Fault status of the main station equipment: the main station equipment fails, and the backup power mode of the regional multi-functional power supply is enabled, each regional controller turns off the regional switch, and the regional multi-functional power supply enters the backup power mode, providing power for the Load power supply until the energy stored in the regional multi-functional power supply is exhausted; the backup power mode of the regional multi-functional power supply is not enabled, and the load power supply in the area is interrupted;

系统停机状态：手动在人机交互界面上对主站控制器进行“停机”操作，主站控制器向各区域控制器发送停机指令，系统进入停机状态。System shutdown state: Manually perform a "stop" operation on the master station controller on the human-computer interface, the master station controller sends a shutdown command to each area controller, and the system enters the shutdown state.

显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本专利申请权利要求的保护范围之中。Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. However, the obvious changes or changes derived therefrom are still within the protection scope of the claims of this patent application.

Claims (10)

1.一种基于放射式接线的智能化高可靠性低压供配电系统，其特征在于，包括在供电母线与负荷母线之间的主站设备，以及在负荷母线与负荷之间的N个区域站设备，其中N为大于等于1的自然数；1. An intelligent high-reliability low-voltage power supply and distribution system based on radial wiring, characterized in that it includes a master station device between the power supply bus and the load bus, and N areas between the load bus and the load Station equipment, where N is a natural number greater than or equal to 1; 所述主站设备包括主站控制器、主站通信耦合器、主站柴油发电机、主站多功能电源、通信阻波器、主站供电母线电压电流检测模块、并网开关和人机交互界面；所述供电母线的电流输出端，依次与所述通信阻波器、所述主站供电母线电压电流检测模块、所述并网开关和所述负荷母线的电流输入端电连接；所述主站通信耦合器、所述主站柴油发电机和所述主站多功能电源分别与所述负荷母线电连接；所述主站控制器分别与所述主站通信耦合器、所述主站柴油发电机、所述主站多功能电源、所述通信阻波器、所述主站供电母线电压电流检测模块、所述并网开关和所述人机交互界面通信连接；所述主站多功能电源还分别与所述主站供电母线电压电流检测模块、所述并网开关、所述主站柴油发电机通信连接；The master station equipment includes a master station controller, a master station communication coupler, a master station diesel generator, a master station multifunctional power supply, a communication wave trap, a master station power supply bus voltage and current detection module, a grid-connected switch and a human-computer interaction interface; the current output end of the power supply bus is electrically connected to the communication trap, the main station power supply bus voltage and current detection module, the grid-connected switch and the current input end of the load bus in turn; the The master station communication coupler, the master station diesel generator and the master station multifunctional power supply are respectively electrically connected to the load bus; the master station controller is respectively connected to the master station communication coupler, the master station The diesel generator, the multifunctional power supply of the master station, the communication wave trap, the voltage and current detection module of the power supply bus of the master station, the grid-connected switch and the human-computer interaction interface are connected in communication; The functional power supply is also communicatively connected with the master station power supply bus voltage and current detection module, the grid-connected switch, and the master station diesel generator; 每个所述区域站设备包括负荷母线与区域负荷子母线之间的区域电压电流检测器、区域开关、区域通信耦合器、区域多功能电源和区域控制器，以及在区域负荷子母线与支路负荷之间的n个支路开关，其中n为大于等于1的自然数；所述负荷母线的电流输出端，依次通过所述区域电压电流检测器和所述区域开关与所述区域负荷子母线电流输入端电连接，所述区域多功能电源与所述区域负荷子母线电连接；所述区域通信耦合器位于所述负荷母线与所述区域电压电流检测器之间；所述区域负荷子母线与n个支路开关电连接；所述区域控制器与所述区域电压电流检测器、所述区域开关、所述区域通信耦合器、所述区域多功能电源和n个支路开关电通信连接；所述区域多功能电源与所述区域开关通信连接。Each of the regional station equipment includes a regional voltage and current detector between the load bus and the regional load sub-bus, a regional switch, a regional communication coupler, a regional multi-functional power supply and a regional controller, and an area between the regional load sub-bus and the branch n branch switches between the loads, wherein n is a natural number greater than or equal to 1; the current output terminal of the load bus passes through the regional voltage and current detector and the regional switch and the current of the regional load sub-bus successively The input terminal is electrically connected, and the regional multifunctional power supply is electrically connected to the regional load sub-bus; the regional communication coupler is located between the load bus and the regional voltage and current detector; the regional load sub-bus is connected to the regional load sub-bus. n branch switches are electrically connected; the regional controller is electrically connected to the regional voltage and current detector, the regional switch, the regional communication coupler, the regional multifunctional power supply and the n branch switches; The regional multifunctional power supply is communicatively connected to the regional switch. 2.根据权利要求1所述的基于放射式接线的智能化高可靠性低压供配电系统，其特征在于，所述主站控制器包括协调控制单元层和功能控制单元层；所述协调控制单元层包括主站通信控制单元和主站功能协调控制单元；所述功能控制单元层包括供电母线检测单元、并网开关控制单元、多功能电源控制单元、柴油发电机控制单元、通信阻波器监控单元和通信收发控制单元；所述人机交互界面与所述主站通信控制单元通信连接，所述主站通信控制单元和所述主站功能协调控制单元通信连接；所述主站功能协调控制单元分别通过所述供电母线检测单元、所述并网开关控制单元、所述多功能电源控制单元、所述柴油发电机控制单元与所述主站供电母线电压电流检测模块、所述并网开关、所述主站多功能电源、所述主站柴油发电机通信连接，所述主站通信控制单元分别通过所述通信阻波器监控单元和所述通信收发控制单元与所述通信阻波器和主站通信耦合器通信连接。2. The intelligent high-reliability low-voltage power supply and distribution system based on radial wiring according to claim 1, wherein the master station controller includes a coordination control unit layer and a function control unit layer; the coordination control The unit layer includes a master station communication control unit and a master station function coordination control unit; the function control unit layer includes a power supply bus detection unit, a grid-connected switch control unit, a multi-functional power supply control unit, a diesel generator control unit, and a communication trap A monitoring unit and a communication transceiver control unit; the human-computer interaction interface communicates with the master station communication control unit, and the master station communication control unit communicates with the master station function coordination control unit; the master station function coordination The control unit respectively passes through the power supply bus detection unit, the grid-connected switch control unit, the multi-functional power supply control unit, the diesel generator control unit, the main station power supply bus voltage and current detection module, the grid-connected The switch, the multifunctional power supply of the master station, and the diesel generator of the master station are connected in communication, and the communication control unit of the master station communicates with the communication wave trap monitoring unit and the communication transceiver control unit respectively. The device communicates with the master station communication coupler. 3.根据权利要求2所述的基于放射式接线的智能化高可靠性低压供配电系统，其特征在于，所述主站多功能电源包括主站多功能电源主控制单元层、主站基本控制单元层和主站主电路，所述主站基本控制单元层包括主站电源功能实现基本控制单元和主站储能元件管理单元，所述主电路包括主站软启动开关组K11、主站变流电路单元IGBT11和主站储能元件单元BMS11，所述主站供电母线电压电流检测模块、所述并网开关、所述主站柴油发电机和所述主站控制器与所述主站多功能电源主控制单元层通信连接，所述主站多功能电源主控制单元层与所述主站电源功能实现基本控制单元和所述主站储能元件管理单元通信连接；所述主站储能元件单元BMS11与所述主站储能元件管理单元通信连接；所述主站软启动开关组K11和所述主站变流电路单元IGBT11与所述主站电源功能实现基本控制单元通信连接；所述主站储能元件单元BMS11与所述主站变流电路单元IGBT11电连接，所述主站变流电路单元IGBT11与所述主站软启动开关组K11的一端电连接，所述主站软启动开关组K11的另一端与所述负荷母线电连接；在所述主站软启动开关组K11和所述主站变流电路单元IGBT11之间设有采样装置CPT11，采样装置CPT11信号输出端与所述主站电源功能实现基本控制单元通信连接；在所述主站变流电路单元IGBT11和主站储能元件单元BMS11之间设有采样装置CPT12，采样装置CPT12分别与所述主站电源功能实现基本控制单元和所述主站储能元件管理单元通信连接；3. The intelligent high-reliability low-voltage power supply and distribution system based on radial wiring according to claim 2, wherein the multifunctional power supply of the master station comprises a main control unit layer of the multifunctional power supply of the master station, a basic The control unit layer and the main circuit of the master station, the basic control unit layer of the master station includes the basic control unit for realizing the power supply function of the master station and the energy storage element management unit of the master station, and the main circuit includes the soft start switch group K11 of the master station, the master station The inverter circuit unit IGBT11 and the main station energy storage element unit BMS11, the main station power supply bus voltage and current detection module, the grid-connected switch, the main station diesel generator and the main station controller and the main station The main control unit layer of the multifunctional power supply is connected by communication, and the main control unit layer of the multifunctional power supply of the master station is connected with the power supply function of the master station to realize the basic control unit and the energy storage element management unit of the master station; The energy element unit BMS11 is communicatively connected with the master station energy storage element management unit; the master station soft start switch group K11 and the master station inverter circuit unit IGBT11 are connected with the master station power supply function to realize the basic control unit communication; The master station energy storage element unit BMS11 is electrically connected to the master station converter circuit unit IGBT11, the master station converter circuit unit IGBT11 is electrically connected to one end of the master station soft-start switch group K11, and the master station The other end of the soft start switch group K11 is electrically connected to the load bus; a sampling device CPT11 is provided between the soft start switch group K11 of the master station and the converter circuit unit IGBT11 of the master station, and the signal output terminal of the sampling device CPT11 Realize the basic control unit communication connection with the power supply function of the master station; a sampling device CPT12 is arranged between the inverter circuit unit IGBT11 of the master station and the energy storage element unit BMS11 of the master station, and the sampling device CPT12 is connected with the power supply of the master station respectively The function realizes the communication connection between the basic control unit and the energy storage element management unit of the main station; 所述主站多功能电源设置主电源模式和辅助电源模式，由主站电源功能实现基本控制单元和主站储能元件管理单元配合实现；当仅启动主站电源功能实现基本控制单元时，为辅助电源模式；主站控制器能使主站多功能电源实现自动模式切换，主站多功能电源实现供电母线与主站柴油发电机之间的无缝切换。The multifunctional power supply of the master station is provided with a main power supply mode and an auxiliary power supply mode, which are implemented by the cooperation of the main station power supply function realization basic control unit and the main station energy storage element management unit; when only the main station power supply function is started to realize the basic control unit, for Auxiliary power supply mode; the master station controller can enable the multi-function power supply of the master station to realize automatic mode switching, and the multi-function power supply of the master station can realize seamless switching between the power supply bus and the diesel generator of the main station. 4.根据权利要求2所述的基于放射式接线的智能化高可靠性低压供配电系统，其特征在于，所述并网开关包括并网开关控制器和并网开关电路，所述主站控制器和所述主站多功能电源与所述并网开关控制器通信连接，所述并网开关电路为并网开关K601；所述并网开关K601的一端与所述供电母线电连接、所述并网开关K601的另一端与所述负荷母线电连接；在所述并网开关K601与所述供电母线之间设有采样装置CTP601，在并网开关K601与所述负荷母线之间设有采样装置CPT602，所述采样装置CTP601和采样装置CPT602的信号输出端与所述并网开关控制器输入端通信连接；所述并网开关K601与所述并网开关控制器通信连接；4. The intelligent high-reliability low-voltage power supply and distribution system based on radial wiring according to claim 2, wherein the grid-connected switch includes a grid-connected switch controller and a grid-connected switch circuit, and the master station The controller and the multifunctional power supply of the main station are connected in communication with the grid-connected switch controller, and the grid-connected switch circuit is a grid-connected switch K601; one end of the grid-connected switch K601 is electrically connected to the power supply bus, and the The other end of the grid-connected switch K601 is electrically connected to the load bus; a sampling device CTP601 is provided between the grid-connected switch K601 and the power supply bus, and a sampling device CTP601 is provided between the grid-connected switch K601 and the load bus. The sampling device CPT602, the sampling device CTP601 and the signal output end of the sampling device CPT602 are communicatively connected to the input port of the grid-connected switch controller; the grid-connected switch K601 is communicatively connected to the grid-connected switch controller; 所述主站柴油发电机包括主站柴油发电机控制器和柴油发电机控制电路，所述主站控制器和所述主站多功能电源与所述主站柴油发电机控制器通信连接；所述柴油发电机控制电路包括柴油发电机和柴油发电机开关K701，所述柴油发电机通过所述柴油发电机开关K701与所述负荷母线电连接，所述柴油发电机与所述柴油发电机开关K701之间设有采样装置CPT702，所述柴油发电机开关K701与所述负荷母线之间设有采样装置CPT701；所述柴油发电机、采样装置CPT702、采样装置CPT701和柴油发电机开关K701分别与所述主站柴油发电机控制器通信连接。The master station diesel generator includes a master station diesel generator controller and a diesel generator control circuit, and the master station controller and the master station multifunctional power supply are communicatively connected to the master station diesel generator controller; The diesel generator control circuit includes a diesel generator and a diesel generator switch K701, the diesel generator is electrically connected to the load bus through the diesel generator switch K701, and the diesel generator and the diesel generator switch A sampling device CPT702 is provided between K701, and a sampling device CPT701 is provided between the diesel generator switch K701 and the load busbar; the diesel generator, sampling device CPT702, sampling device CPT701 and diesel generator switch K701 are respectively connected with The main station diesel generator controller is connected in communication. 5.根据权利要求1所述的基于放射式接线的智能化高可靠性低压供配电系统，其特征在于，所述区域控制器包括区域协调控制单元层和区域功能控制单元层；所述区域协调控制单元层包括区域通信控制单元和区域功能协调控制单元；所述区域功能控制单元层包括区域检测单元、区域开关控制单元、区域多功能电源控制单元、支路开关状态收集控制单元和通信收发控制单元；所述区域通信控制单元和所述区域功能协调控制单元通信连接；所述区域功能协调控制单元分别通过所述区域检测单元、所述区域开关控制单元、所述区域多功能电源控制单元、所述支路开关状态收集控制单元与所述区域电压电流检测器、所述区域开关、所述区域多功能电源、n个所述支路开关通信连接，所述区域通信控制单元通过所述通信收发控制单元与区域通信耦合器通信连接；5. The intelligent high-reliability low-voltage power supply and distribution system based on radial wiring according to claim 1, wherein the zone controller includes a zone coordination control unit layer and a zone function control unit layer; The coordination control unit layer includes an area communication control unit and an area function coordination control unit; the area function control unit layer includes an area detection unit, an area switch control unit, an area multifunctional power supply control unit, a branch switch state collection control unit, and a communication transceiver control unit; the regional communication control unit and the regional function coordination control unit are connected in communication; . The branch switch state collection control unit is communicatively connected with the regional voltage and current detector, the regional switch, the regional multifunctional power supply, and n branch switches, and the regional communication control unit communicates with the The communication transceiver control unit is communicatively connected with the regional communication coupler; 所述区域多功能电源包括区域主控制单元层、区域基本控制单元层和区域主电路，所述区域基本控制单元层包括区域电源功能实现基本控制单元和区域储能元件管理单元，所述区域主电路包括区域软启动开关组K21、区域变流电路单元IGBT21和区域储能元件单元BMS21，所述区域控制器与所述区域主控制单元层的区域多功能电源主控制单元通信连接，所述区域多功能电源主控制单元与所述区域电源功能实现基本控制单元和所述区域储能元件管理单元通信连接；所述区域储能元件单元BMS21与所述区域储能元件管理单元通信连接；所述区域软启动开关组K21和所述区域变流电路单元IGBT21与所述区域电源功能实现基本控制单元通信连接；所述区域储能元件单元BMS21与所述区域变流电路单元IGBT21电连接，所述区域变流电路单元IGBT21与所述区域软启动开关组K21的一端电连接，所述区域软启动开关组K21的另一端与所述区域负荷子母线电连接；在所述区域软启动开关组K21和所述区域变流电路单元IGBT21之间设有采样装置CPT21，采样装置CPT21信号输出端与所述区域电源功能实现基本控制单元通信连接；在所述区域变流电路单元IGBT21和区域储能元件单元BMS21之间设有采样装置CPT22，采样装置CPT22分别与所述区域电源功能实现基本控制单元和所述区域储能元件管理单元通信连接；The regional multifunctional power supply includes a regional main control unit layer, a regional basic control unit layer and a regional main circuit, and the regional basic control unit layer includes a regional power supply function realization basic control unit and a regional energy storage element management unit. The circuit includes a regional soft-start switch group K21, a regional converter circuit unit IGBT21 and a regional energy storage element unit BMS21, and the regional controller communicates with the regional multifunctional power supply main control unit on the regional main control unit layer, and the regional The main control unit of the multifunctional power supply realizes the communication connection between the basic control unit and the regional energy storage element management unit with the regional power supply function; the regional energy storage element unit BMS21 is communicatively connected with the regional energy storage element management unit; The regional soft start switch group K21 and the regional converter circuit unit IGBT21 are connected to the regional power supply function to realize the basic control unit communication connection; the regional energy storage element unit BMS21 is electrically connected to the regional converter circuit unit IGBT21, the The regional converter circuit unit IGBT21 is electrically connected to one end of the regional soft-start switch group K21, and the other end of the regional soft-start switch group K21 is electrically connected to the regional load sub-bus; in the regional soft-start switch group K21 A sampling device CPT21 is provided between the area conversion circuit unit IGBT21, and the signal output terminal of the sampling device CPT21 is connected to the basic control unit for communication with the area power supply function; the area conversion circuit unit IGBT21 and the area energy storage element A sampling device CPT22 is provided between the units BMS21, and the sampling device CPT22 is respectively connected with the basic control unit of the regional power supply function and the regional energy storage element management unit; 所述区域多功能电源设置备用电模式和无功补偿模式，由区域电源功能实现基本控制单元和区域储能元件管理单元配合实现；The regional multifunctional power supply is provided with a standby power mode and a reactive power compensation mode, which are realized by the cooperation of the regional power supply function realization basic control unit and the regional energy storage element management unit; 所述区域开关包括区域开关控制器和区域开关电路，所述区域控制器和所述区域多功能电源与所述区域开关控制器通信连接，所述区域开关电路为区域开关K501；所述区域开关K501的一端与所述负荷母线电连接、所述区域开关K501的另一端与所述区域负荷子母线电连接；在所述区域开关K501与所述负荷母线之间设有采样装置CPT501，在区域开关K501与所述区域负荷子母线之间设有采样装置CPT502，所述采样装置CPT501和采样装置CPT502的信号输出端与所述区域开关控制器通信连接；所述区域开关K501与所述区域开关控制器通信连接；The regional switch includes a regional switch controller and a regional switch circuit, the regional controller and the regional multifunctional power supply are communicatively connected to the regional switch controller, the regional switch circuit is a regional switch K501; the regional switch One end of K501 is electrically connected to the load busbar, and the other end of the regional switch K501 is electrically connected to the regional load sub-busbar; a sampling device CPT501 is installed between the regional switch K501 and the load busbar. A sampling device CPT502 is provided between the switch K501 and the regional load sub-bus, and the signal output terminals of the sampling device CPT501 and the sampling device CPT502 are communicatively connected to the regional switch controller; the regional switch K501 is connected to the regional switch Controller communication connection; 所述支路开关包括支路开关控制器和支路开关电路，所述区域控制器与所述支路开关控制器通信连接，所述支路开关电路为支路开关K401，所述支路开关K401的一端与区域负荷子母线电连接，所述支路开关K401的另一端与所述支路负荷电连接，所述支路开关K401与所述支路开关控制器通信连接。The branch switch includes a branch switch controller and a branch switch circuit, the regional controller communicates with the branch switch controller, the branch switch circuit is a branch switch K401, and the branch switch One end of K401 is electrically connected to the regional load sub-bus, the other end of the branch switch K401 is electrically connected to the branch load, and the branch switch K401 is communicatively connected to the branch switch controller. 6.基于放射式接线的智能化高可靠性低压供配电方法，其特征在于，包括如下步骤：6. An intelligent high-reliability low-voltage power supply and distribution method based on radial wiring, characterized in that it comprises the following steps: (1)安装权利要求1-5任一所述的基于放射式接线的智能化高可靠性低压供配电系统搭建主站设备和区域站设备，并连接主站设备和区域站设备的电路线路和通信线路；(1) Install the intelligent high-reliability low-voltage power supply and distribution system based on radial wiring described in any one of claims 1-5 to build master station equipment and regional station equipment, and connect the circuit lines of master station equipment and regional station equipment and communication lines; (2)在主站人机交互界面录入主站设备和区域站设备中设备类型、特性和参数，设置各个负荷区域的负荷等级和供电要求；(2) Enter the equipment type, characteristics and parameters of the main station equipment and regional station equipment on the human-computer interaction interface of the main station, and set the load level and power supply requirements of each load area; (3)在人机交互界面输入对应控制策略，控制主站设备功能，控制各个区域站设备功能；(3) Input the corresponding control strategy on the human-computer interaction interface, control the equipment functions of the master station, and control the equipment functions of each regional station; (4)启动运行，然后根据区域负荷实现自检状态、静态运行状态、动态协调状态、主站设备故障状态和系统停机状态。(4) Start the operation, and then realize the self-inspection state, static operation state, dynamic coordination state, master station equipment failure state and system shutdown state according to the regional load. 7.根据权利要求6所述的基于放射式接线的智能化高可靠性低压供配电方法，其特征在于，在步骤(1)中，包括如下步骤：7. The intelligent high-reliability low-voltage power supply and distribution method based on radial wiring according to claim 6, characterized in that, in step (1), comprising the following steps: (1-1)根据实际供配电容量和电压等级需要，选择并网开关、主站柴油发电机和主站多功能电源；(1-1) According to the actual power supply and distribution capacity and voltage level needs, select the grid-connected switch, main station diesel generator and main station multi-functional power supply; (1-2)根据各个负荷区域的用电容量和电压，选择区域开关、区域多功能电源；(1-2) According to the power consumption capacity and voltage of each load area, select the regional switch and regional multi-functional power supply; (1-3)根据负荷区域的具体负荷大小和电压，选择具体负荷支路的支路开关；(1-3) According to the specific load size and voltage of the load area, select the branch switch of the specific load branch; (1-4)系统设置主站设备：在供电母线接入点后依次接入通信阻波器、主站供电母线电压电流检测模块、并网开关，到达负荷母线；负荷母线电连接主站通信耦合器、主站柴油发电机和主站多功能电源；设置主站控制器和人机交互界面；所述主站控制器分别与所述主站通信耦合器、所述主站柴油发电机、所述主站多功能电源、所述通信阻波器、所述主站供电母线电压电流检测模块、所述并网开关和人机交互界面通信连接；所述主站多功能电源还分别与所述主站供电母线电压电流检测模块、所述并网开关、所述主站柴油发电机通信连接；(1-4) The system sets up the main station equipment: after the access point of the power supply bus, the communication wave trap, the main station power supply bus voltage and current detection module, and the grid switch are sequentially connected to the load bus; the load bus is electrically connected to the main station for communication Coupler, main station diesel generator and main station multifunctional power supply; master station controller and man-machine interaction interface are set; said main station controller communicates with said main station coupler, said main station diesel generator, The multifunctional power supply of the master station, the communication wave trap, the voltage and current detection module of the power supply bus of the master station, the grid-connected switch and the human-computer interaction interface are connected in communication; the multifunctional power supply of the master station is also connected with the The master station power supply bus voltage and current detection module, the grid-connected switch, and the master station diesel generator communication connection; 系统根据负荷区域分布情况设置负荷区域的区域站设备：在负荷母线上接供电线路，线路另一端到达负荷区域后，依次连接区域电压电流检测器、区域开关，到达区域负荷子母线；区域负荷子母线连接区域多功能电源；区域通信耦合器位于负荷母线上的供电线路与区域电压电流检测器之间；在区域负荷子母线与支路负荷之间设有n个支路开关；设置区域控制器；所述区域控制器与所述区域电压电流检测器、所述区域开关、所述区域通信耦合器、所述区域多功能电源和n个支路开关电通信连接；所述区域多功能电源与所述区域开关通信连接。The system sets the regional station equipment in the load area according to the distribution of the load area: connect the power supply line to the load bus, and after the other end of the line reaches the load area, connect the area voltage and current detector and the area switch in sequence to reach the area load sub-bus; The bus bar is connected to the regional multi-functional power supply; the regional communication coupler is located between the power supply line on the load bus and the regional voltage and current detector; n branch switches are set between the regional load sub-bus and the branch load; the regional controller is set ; The regional controller is electrically connected with the regional voltage and current detector, the regional switch, the regional communication coupler, the regional multifunctional power supply and n branch switches; the regional multifunctional power supply is connected with The zone switches are communicatively connected. 8.根据权利要求6所述的基于放射式接线的智能化高可靠性低压供配电方法，其特征在于，在步骤(4)中：所述自检状态为：系统搭建完成、主站控制器及区域控制器策略预设完成、系统启动，主站控制器对主站设备、区域控制器对所属区域站设备进行自检；若系统状态正常，则在人机交互界面上显示是否启动，等待下一步操作；若系统存在故障，在人机交互界面显示故障信息，禁止启动，等待人工故障排除；若发现具体设备故障，在人机交互界面上将故障设备屏蔽，或人工排除设备故障后再次启动自检；8. The intelligent high-reliability low-voltage power supply and distribution method based on radial wiring according to claim 6, characterized in that in step (4): the self-inspection status is: the system is built and the master station controls The controller and regional controller strategy preset is completed and the system is started. The master station controller performs self-inspection on the master station equipment and the regional controller on the regional station equipment; if the system status is normal, it will display whether it is started on the human-computer interaction interface. Wait for the next step; if there is a fault in the system, display the fault information on the human-computer interface, prohibit starting, and wait for manual troubleshooting; if a specific device fault is found, shield the faulty device on the human-computer interaction interface, or manually troubleshoot the device Start the self-test again; 静态运行状态为：主站设备均正常运行，区域内负荷没有大功率电动机直接起动；主站柴油发电机处于冷备份不起动状态，主站多功能电源处于辅助电源状态；N个区域多功能电源处于无功补偿模式，且仅对所在区域做稳定的常规无功补偿。The static running state is: the main station equipment is running normally, the load in the area does not have a high-power motor to start directly; the main station diesel generator is in the state of cold backup and does not start, the main station multi-function power supply is in the auxiliary power supply state; N regional multi-function power supplies It is in reactive power compensation mode, and only performs stable conventional reactive power compensation in the area. 9.根据权利要求6所述的基于放射式接线的智能化高可靠性低压供配电方法，其特征在于，在步骤(4)中：动态协调状态包括7种动态协调状态，具体如下：9. The intelligent high-reliability low-voltage power supply and distribution method based on radial wiring according to claim 6, wherein in step (4): the dynamic coordination state includes 7 dynamic coordination states, specifically as follows: 动态协调状态1：主站设备均正常运行，区域内负荷有大功率电动机直接起动时，主站柴油发电机处于冷备份不起动状态，主站多功能电源处于辅助电源状态；N个区域多功能电源处于无功补偿模式，起动过程中大功率电动机所在区域的区域多功能电源起用大功率负荷辅助起动补偿功能，补偿大幅突变的无功损耗，抑制区域负荷子母线、负荷母线电压波动；Dynamic coordination state 1: The equipment of the main station is in normal operation, and when the load in the area is directly started by a high-power motor, the diesel generator of the main station is in the state of cold backup and non-starting, and the multi-functional power supply of the main station is in the state of auxiliary power supply; N areas are multi-functional The power supply is in reactive power compensation mode. During the starting process, the regional multifunctional power supply in the area where the high-power motor is located uses the high-power load auxiliary starting compensation function to compensate for the reactive power loss of a large mutation, and suppress the voltage fluctuation of the regional load sub-bus and load bus; 动态协调状态2：主站设备均正常运行，一个或多个负荷区域内发生故障时，跳开故障所在支路的支路开关，故障被成功切除，故障所在的区域开关保持闭合状态，故障所在区域的区域控制器收到支路开关反馈信号后，上传给主站控制器，并显示在人机交互界面上，通知人工维修故障支路；Dynamic coordination state 2: The main station equipment is running normally. When a fault occurs in one or more load areas, the branch switch of the branch where the fault is located is tripped, and the fault is successfully removed. The switch of the area where the fault is located remains closed. After receiving the branch switch feedback signal, the regional controller in the area uploads it to the main station controller and displays it on the human-computer interaction interface to notify manual maintenance of the faulty branch; 动态协调状态3，主站设备均正常运行，一个或多个负荷区域内发生故障后，故障所在支路的支路开关拒动，或故障点位于区域负荷子母线上时，导致故障所在的区域开关断开；故障所在的区域控制器与故障所在的区域多功能电源相互配合实现试起动、向主站控制器发送申请重新并网报文、自动恢复并网功能的循环过程中，尝试区域内的故障自愈；如果不能实现故障自愈，上传给主站控制器，并显示在人机交互界面上，通知人工维修故障支路；In dynamic coordination state 3, the main station equipment is running normally. After a fault occurs in one or more load areas, the branch switch of the branch where the fault is located refuses to move, or when the fault point is located on the sub-bus of the regional load, the area where the fault is located The switch is turned off; the regional controller where the fault is located cooperates with the multi-functional power supply in the area where the fault is located to realize the trial start, send a message to the main station controller to apply for re-connecting to the grid, and automatically restore the function of grid-connecting. fault self-healing; if the fault self-healing cannot be achieved, it will be uploaded to the main station controller and displayed on the human-computer interaction interface to notify manual maintenance of the faulty branch; 动态协调状态4：主站设备均正常运行，一个或多个负荷区域内发生故障后，故障所在支路的支路开关拒动，或故障点位于区域负荷子母线上时，导致故障所在的区域开关断开；故障区域控制器主导的区域内的故障自愈失败，区域开关保持断开状态，且区域控制器提交报文给主站控制器并显示在主站人机交互界面上，要求人工排除故障；Dynamic coordination state 4: The main station equipment is running normally. After a fault occurs in one or more load areas, the branch switch of the branch where the fault is located refuses to move, or when the fault point is located on the sub-bus of the regional load, the area where the fault is located The switch is off; the fault self-healing in the area dominated by the fault area controller fails, and the area switch remains in the off state, and the area controller submits a message to the master station controller and displays it on the man-machine interface of the master station, requiring manual Troubleshooting; 动态协调状态5：主站设备均正常运行，由于供电母线电压偏低或N个区域的总负荷过大，导致负荷母线电压偏低，主站控制器按照事先设定的供电优先级，逐级向各个区域控制器发送区域负荷切除指令，直至负荷母线电压恢复正常值，保证优先级高的负荷区域供电；Dynamic coordination state 5: The main station equipment is running normally. Due to the low voltage of the power supply bus or the total load of N areas is too large, the load bus voltage is low. Send regional load shedding instructions to each regional controller until the load bus voltage returns to the normal value to ensure the power supply for the load region with high priority; 动态协调状态6：供电母线发生异常，主站多功能电源采取主电源模式，将系统内部的供电无缝切换到主站柴油发电机上；当检测到供电母线恢复正常，关闭柴油发电机，主站多功能电源采取主电源模式，将系统内部的供电无缝切换回供电母线上；各区域负荷处于正常工作状态；Dynamic coordination state 6: When the power supply bus is abnormal, the multi-function power supply of the master station adopts the main power supply mode, and the power supply inside the system is seamlessly switched to the diesel generator of the master station; when it is detected that the power supply bus returns to normal, the diesel generator is turned off, and the master station The multi-functional power supply adopts the main power supply mode to seamlessly switch the power supply inside the system back to the power supply bus; the loads in each area are in normal working condition; 动态协调状态7：供电母线发生异常，主站多功能电源的主电源模式未被使能、且区域多功能电源以备用电模式被使能，各个区域控制器断开区域开关，区域多功能电源进入备用电模式，为所在区域内的负荷供电；当检测到供电母线恢复正常，区域多功能电源将区域内部的供电无缝切换回供电母线上；区域多功能电源的备用电模式未被使能，区域多功能电源为所在区域内负荷供电中断。Dynamic coordination state 7: An abnormality occurs on the power supply bus, the main power supply mode of the multi-functional power supply of the master station is not enabled, and the multi-functional power supply of the area is enabled in the backup power mode, each area controller disconnects the area switch, and the area multi-function power supply The power supply enters the standby power mode to supply power to the loads in the area; when it is detected that the power supply bus returns to normal, the regional multi-functional power supply seamlessly switches the power supply in the area back to the power supply bus; the standby power mode of the regional multi-functional power supply does not is enabled, the regional multi-functional power supply interrupts the power supply for the loads in the region. 10.根据权利要求6所述的基于放射式接线的智能化高可靠性低压供配电方法，其特征在于，在步骤(4)中：10. The intelligent high-reliability low-voltage power supply and distribution method based on radial wiring according to claim 6, characterized in that, in step (4): 主站设备故障状态：主站设备发生故障、且区域多功能电源的备用电模式被使能，各个区域控制器断开区域开关，区域多功能电源进入备用电模式，为所在区域内的负荷供电，直至区域多功能电源存储的能量耗尽；区域多功能电源的备用电模式未被使能，所在区域内负荷供电中断；Fault status of the main station equipment: the main station equipment fails, and the backup power mode of the regional multi-functional power supply is enabled, each regional controller turns off the regional switch, and the regional multi-functional power supply enters the backup power mode, providing power for the Load power supply until the energy stored in the regional multi-functional power supply is exhausted; the backup power mode of the regional multi-functional power supply is not enabled, and the load power supply in the area is interrupted; 系统停机状态：手动在人机交互界面上对主站控制器进行“停机”操作，主站控制器向各区域控制器发送停机指令，系统进入停机状态。System shutdown state: Manually perform a "stop" operation on the master station controller on the human-computer interface, the master station controller sends a shutdown command to each area controller, and the system enters the shutdown state.
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