WO2021031721A1 - 直流负荷响应控制方法、装置及直流电器 - Google Patents

直流负荷响应控制方法、装置及直流电器 Download PDF

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Publication number
WO2021031721A1
WO2021031721A1 PCT/CN2020/100556 CN2020100556W WO2021031721A1 WO 2021031721 A1 WO2021031721 A1 WO 2021031721A1 CN 2020100556 W CN2020100556 W CN 2020100556W WO 2021031721 A1 WO2021031721 A1 WO 2021031721A1
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Prior art keywords
load
voltage
power
interval
response
Prior art date
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Ceased
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PCT/CN2020/100556
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English (en)
French (fr)
Inventor
袁金荣
赵志刚
李伟进
李秋莲
宋江喜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to US17/625,001 priority Critical patent/US12027850B2/en
Priority to EP20855176.2A priority patent/EP3968496A4/en
Priority to AU2020333583A priority patent/AU2020333583B2/en
Publication of WO2021031721A1 publication Critical patent/WO2021031721A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H02J1/00—Circuit arrangements for DC mains or DC distribution networks
    • H02J1/14—Balancing load and power generation in DC networks
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Program-control systems
    • G05B19/02—Program-control systems electric
    • G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Program control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/26—Pc applications
    • G05B2219/2639—Energy management, use maximum of cheap power, keep peak load low
    • 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
    • H02J2105/00—Networks for supplying or distributing electric power characterised by their spatial reach or by the load
    • H02J2105/50—Networks for supplying or distributing electric power characterised by their spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2105/51—Networks for supplying or distributing electric power characterised by their spatial reach or by the load for selectively controlling the operation of the loads according to a condition being electrical
    • 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
    • H02J2105/00—Networks for supplying or distributing electric power characterised by their spatial reach or by the load
    • H02J2105/50—Networks for supplying or distributing electric power characterised by their spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2105/52—Networks for supplying or distributing electric power characterised by their spatial reach or by the load for selectively controlling the operation of the loads for limitation of the power consumption in the networks or in one section of the networks, e.g. load shedding or peak shaving
    • H02J2105/53—Networks for supplying or distributing electric power characterised by their spatial reach or by the load for selectively controlling the operation of the loads for limitation of the power consumption in the networks or in one section of the networks, e.g. load shedding or peak shaving for partial power limitation, e.g. entering degraded or current limitation modes

Definitions

  • the present disclosure relates to the technical field of smart homes, and in particular, to a DC load response control method, device and DC electrical appliance.
  • the energy Internet or DC microgrid system it is necessary to realize the communication response between the source side of the DC microgrid and the DC load side.
  • the voltage on the power supply side changes, the operating state of the load on the power user side will passively respond accordingly. For example, when the power supply is insufficient, the operation is stopped or the power is reduced, and the power is increased when the power supply is restored.
  • a DC load response control method including: monitoring the power voltage of the DC load; judging whether the power voltage is within the response interval; and controlling according to the judgment result and the type of the DC load Operation of DC load.
  • the DC load response control method further includes: before monitoring the power consumption voltage of the DC load, classifying the DC load in the network according to the start-up operation characteristics of each DC load in the network.
  • the types of DC loads include adjustable power loads, transferable power loads, or fixed power loads.
  • the response interval is one of a plurality of operation intervals divided into the ratio of the rated voltage on the power supply side or the pressure difference with the rated voltage; and, the load control scheme corresponding to the response interval includes The change parameter controls whether the DC load is running or adjusts the operating parameters of the DC load, where each operating interval corresponds to a load control scheme.
  • the multiple operation intervals also include a protection interval, an isolation interval, and a normal operation interval;
  • the load control scheme corresponding to the protection interval includes shutdown protection;
  • the load control scheme corresponding to the isolation interval includes controlling the normal operation of the load and controlling the load progress.
  • Response preparation The load control plan corresponding to the normal operation interval includes controlling the normal operation of the load without responding.
  • controlling the operation of the direct current load includes: adjusting the power of the direct current load according to the electric voltage.
  • controlling the operation of the direct current load includes: when the type of the direct current load is an adjustable power load, if the judgment result is that the electrical voltage is within the response interval, then according to the forecast Set the corresponding relationship between the voltage and the operating parameters, the operating parameters of the control DC load are decreased or increased; if the judgment result is that the power voltage is not within the response interval and not within the protection interval, the DC load is controlled to operate normally without responding.
  • controlling the operation of the direct current load includes: controlling the operation of the direct current load when the period of voltage stabilization exceeds a predetermined length.
  • controlling the operation of the DC load according to the judgment result and the type of the DC load includes: when the type of the DC load is a transferable power load, if the judgment result is that the voltage is within the response interval, then Control the DC load to enter the running waiting state, and determine whether the waiting time is greater than the first set time, if the waiting time is greater than the first set time, control the DC load to enter the operating state; and if the judgment result is that the power voltage is not in the response interval Is within the protection interval, control the DC load to operate normally, or determine whether the duration of the electrical voltage within the normal operation interval is greater than the second set time, if the duration is greater than the second set time, control the DC load to start In normal operation, if the duration is not greater than the second set time, the control DC load enters the operation waiting state.
  • controlling the operation of the DC load includes: controlling the DC load to run intermittently or stop running.
  • controlling the operation of the DC load according to the judgment result and the type of the DC load includes: when the type of the DC load is a fixed power load, if the judgment result is that the power consumption voltage is within the response interval, then determining Whether the electrical power of the DC load is greater than the set power; if the electrical power is greater than the set power, the DC load is controlled to stop running; if the electrical power is not greater than the set power, the DC load is controlled to operate normally, or according to the set DC load The important level controls the DC load to stop operation or intermittent operation; and if the judgment result is that the power voltage is not within the response interval and is not within the protection interval, then the DC load is controlled to operate normally.
  • monitoring the power voltage of the DC load includes: monitoring the power voltage of the DC load by using a sampling circuit in the DC load.
  • a DC load response control device including: a monitoring module configured to monitor the power consumption voltage of the DC load; and a judgment module configured to judge whether the power consumption voltage is in a response interval
  • the control module is configured to control the operation of the DC load according to the judgment result and the type of the DC load.
  • a DC load response control device including: a memory; and a processor coupled to the memory, and the processor is configured to execute the steps of the embodiment of the present invention based on instructions stored in the memory.
  • DC load response control method including: a memory; and a processor coupled to the memory, and the processor is configured to execute the steps of the embodiment of the present invention based on instructions stored in the memory.
  • a DC electrical appliance including: the DC load response control device based on voltage changes in the embodiments of the present invention.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the DC load response control method as in the embodiment of the present invention is implemented.
  • FIG. 1 is a flowchart of some embodiments of the DC load response control method based on voltage change of the present disclosure
  • FIG. 2 is a flowchart of some embodiments of the adjustable power load response method of the present disclosure
  • FIG. 3 is a flowchart of some embodiments of the response method of the transferable power load of the present disclosure
  • FIG. 5 is a schematic diagram of some embodiments of the DC load response control device based on voltage change of the present disclosure.
  • Fig. 6 is a schematic diagram of other embodiments of the DC load response control device of the present disclosure.
  • Fig. 7 is a schematic diagram of other embodiments of the DC load response control device of the present disclosure.
  • the present disclosure provides a DC load response control method, device and DC electrical appliances based on voltage changes to solve the DC microgrid
  • the response mode of medium and direct current electrical appliances leads to the problem that the frequency of DC voltage changes is high and some direct current electrical appliances are not applicable.
  • the flow chart of the DC load response control method based on voltage change in some embodiments of the present disclosure is shown in FIG. 1.
  • the DC load response control method includes the following steps:
  • the DC load refers to the load on the consumer side in the DC microgrid, that is, the DC appliance.
  • the voltage of the DC load refers to the voltage at the power supply terminal of the DC load, that is, the DC bus voltage.
  • a sampling circuit in the DC load is used to monitor the voltage of the DC load.
  • the sampling circuit in the DC load is also used to monitor the electric power of the DC load at the same time. For example, when adjusting the operating parameters of the DC load, the monitored electric power is used as a reference for adjustment.
  • Voltage change parameters include: voltage change ratio or voltage change pressure difference.
  • the operating parameters include one or more of power, gear, wind speed, or temperature, and are related to the function of the DC electrical appliance.
  • the divided operation interval includes: a response interval, a normal operation interval, and a protection interval.
  • the load control plan corresponding to the protection interval is to control the operation of load protection, for example, shutdown protection; the load control plan corresponding to the normal operation interval is to control the normal operation of the load without responding.
  • an isolation interval is set, and the load control scheme corresponding to the isolation interval is to control the normal operation of the load while controlling the load to enter response preparation.
  • the protection interval includes a high-voltage protection interval and a low-voltage protection interval.
  • the ratio of the rated voltage of the high-voltage protection interval is greater than or equal to the first ratio of the rated voltage, and the ratio of the rated voltage of the low-voltage protection interval is less than or equal to the second ratio of the rated voltage; the ratio of the rated voltage of the response interval is greater than the rated voltage
  • the second proportional value is less than or equal to the third proportional value of the rated voltage;
  • the proportional value of the rated voltage in the normal operation interval is less than the first proportional value of the rated voltage and greater than or equal to the fourth proportional value of the rated voltage; the ratio of the rated voltage in the isolation interval
  • the value is less than the fourth proportional value of the rated voltage and greater than the third proportional value of the rated voltage; where the first proportional value is greater than the fourth proportional value, the fourth proportional value is greater than the third proportional value, and the third proportional value is greater than the
  • the load control plan corresponding to the high-voltage protection zone is to control the load for high-voltage protection; the load control plan corresponding to the low-voltage protection zone is to control the load for low-voltage protection. Therefore, the highest voltage of the low-voltage protection interval is lower than the lowest voltage of the response interval; the highest voltage of the response interval is lower than the lowest voltage of the isolation interval; the highest voltage of the isolation interval is lower than the lowest voltage of the normal operation interval; the highest voltage of the normal operation interval is low The lowest voltage in the high-voltage protection zone.
  • the DC microgrid power supply side within ⁇ 10% of the rated voltage is used as the allowable operating range as required, or the user sets the allowable operating range according to the requirements of the DC load on the load side.
  • the DC microgrid 400VDC power supply is used as the rated voltage, and the voltage value of the power supply side is divided into low-voltage protection interval, response interval, isolation interval, normal operation interval, high-voltage protection interval, etc.
  • all DC loads in the DC microgrid are divided into at least three types.
  • DC air conditioners are adjustable power loads
  • DC washing machines, DC electric water heaters, etc. are transferable power loads
  • DC lamps, DC televisions, DC hair dryer, DC iron, DC electric kettle, etc. are fixed power loads.
  • the method before monitoring the power consumption voltage of the DC load, the method further includes: classifying the DC load in the network according to the startup operation characteristics of each DC load in the network.
  • the present disclosure formulates corresponding smart response schemes that can respond to changes in DC bus voltage, increasing the relative stability of the power during response, thereby reducing the frequency of DC voltage fluctuations and changing the voltage on the power supply side. Make a more orderly and stable response to achieve an orderly use of electricity.
  • the load can be controlled by adjusting the power of the DC load according to the electrical voltage.
  • the operating parameters of the DC load are controlled to decrease or increase according to the corresponding relationship between the preset voltage and the operating parameters; if the judgment result is that the electrical voltage is not If it is in the response interval and not in the protection interval, that is, if the voltage is in the isolation interval or the normal operation interval, the DC load is controlled to operate normally without responding. If the power voltage is in the protection zone, the DC load is controlled for low-voltage protection or high-voltage protection.
  • the power consumption of the DC load is monitored to serve as a reference for subsequent power adjustment.
  • the corresponding relationship between voltage and operating parameters is set and stored in advance, for example, the corresponding relationship between voltage value and operating parameter value, or the corresponding relationship between voltage change and operating parameter change.
  • the corresponding power of 400V voltage is 8000W, 300V
  • the voltage corresponds to 6000W of power.
  • every 10V drop in voltage corresponds to a power drop of 200W.
  • step 201 the power voltage and power of the DC air conditioner are monitored.
  • step 202 it is determined whether the electrical voltage is within the response interval.
  • step 205 is executed.
  • step 203 is executed.
  • step 203 the air conditioner is in operation, and step 204 is executed.
  • the DC air-conditioning protection stops.
  • the electrical voltage is in the isolation interval, control the normal operation of the DC air conditioner and prepare for response.
  • the power voltage is in the response interval, the air conditioner starts to run.
  • step 204 the working power of the DC air conditioner is reduced or increased according to the set voltage change interval.
  • the compressor is directly restricted to respond quickly, or the DC air conditioner background sets the target temperature according to the communication demand (ie, the rise and fall of the DC bus voltage) instead of using the target temperature set by the user, for example, in the cooling In the mode, if you want to reduce the work power, you need to reduce the temperature difference, so the target temperature can be automatically increased.
  • step 205 the DC air conditioner operates normally, and performs cooling or heating normally according to the target temperature set by the user.
  • the operating parameters of the DC load are dynamically adjusted according to the voltage change, and a more orderly and stable response is made to the voltage change on the power supply side, realizing the DC home Intelligent response.
  • the load can be controlled by controlling the operation of the DC load when the duration of voltage stabilization exceeds a predetermined length.
  • the DC load is controlled to enter the operation waiting state (for example, standby or pause), and it is judged whether the waiting time is greater than the first set time, if the waiting time is greater than the first set time After a set time, the DC load is controlled to enter the operating state, and if the waiting time is not greater than the first set time, it returns to continue to determine whether the monitored power voltage is within the response interval.
  • the judgment result is that the power consumption voltage is not within the response interval and is not within the protection interval, that is, the electricity consumption voltage is within the isolation interval or the normal operation interval. If the judgment result is that the power consumption voltage is not within the response interval and is not within the protection interval, that is, the electricity consumption voltage is within the isolation interval or the normal operation interval, then: control the normal operation of the DC load (that is, transfer the power load when it is running, not Respond until the work is completed); or, determine whether the duration of the electrical voltage within the normal operation interval is greater than the second set time, if the duration is greater than the second set time, control the DC load to start normal operation, if the duration is longer Not greater than the second set time, the control DC load enters the running waiting state. If the power voltage is in the protection zone, the DC load is controlled for low-voltage protection or high-voltage protection.
  • the first set time is the user demand time, that is, the waiting time acceptable to the user.
  • the first set time is set according to at least one of the user's own needs or the actual use of the electrical appliance. In some embodiments, reference is made to direct current Set the time for items to deteriorate due to non-operation of the appliance for a long time. For example, if the clothes are not washed in the washing machine for a long time, they will cause rancidity.
  • the second set time is the equipment demand time, that is, the time required for the equipment to complete one operation, such as the time for the washing machine to finish washing clothes.
  • prediction is made according to the current power consumption situation of the DC microgrid to determine whether the voltage can support the DC electrical appliance for sufficient time to complete a complete operation.
  • the load models are different, and the settings of the first set time and the second set time are different.
  • step 301 the power voltage of the DC load is monitored.
  • step 302 it is determined whether the DC bus voltage is within the response interval. If the DC bus voltage is within the response interval, step 303 is executed. If the DC bus voltage is within the normal operation range, in some embodiments, it is directly operated, and in other embodiments, step 306 is executed.
  • step 303 instead of performing work according to the user's target instruction, it enters a running waiting state, and step 304 is executed.
  • step 304 it is determined whether the waiting time is greater than the first set time, and if the waiting time is greater than the first set time, step 305 is executed. If the power usage voltage enters the protection interval when it is not greater than the first predetermined time, then return to step 302.
  • step 305 enter the running state to avoid user losses due to excessive response.
  • step 306 it is determined whether the duration of the voltage in the normal operation interval is greater than the second set time, and if the duration of the voltage in the normal operation interval is greater than the second set time, step 307 is executed.
  • step 307 the operation is started.
  • this method runs when the voltage stabilization time reaches the preset time, so as to ensure that the voltage of the DC appliance is in the normal operation interval to support the DC appliance to complete a complete operation (for example, after washing clothes), and avoid midway response. Cause user loss and affect user experience.
  • the load can be controlled by controlling the DC load to run intermittently or stop running.
  • the result of the judgment is that the electrical voltage is within the response interval
  • the DC load is controlled to operate normally. If the power voltage is in the protection zone, the DC load is controlled for low-voltage protection or high-voltage protection.
  • the set power is a power value set by the user for distinguishing high-power electrical appliances from low-power electrical appliances, for example, 250W.
  • the importance level of the DC load is set by the user according to his actual usage. DC appliances with electric power not greater than the set power have little response when the source-to-charge voltage changes, or cannot meet the demand for power reduction on the power consumption side. Therefore, when the electric voltage of the fixed power load is within the response range , DC appliances whose power consumption is not greater than the set power continue to run, and will not have any impact on the power consumption of the system.
  • whether the load is running is controlled according to the importance level of the load. If the importance level of the fixed power load is higher than or equal to the preset level (that is, the fixed power load is more important in the DC microgrid), the fixed power load is controlled In normal operation, if the importance level of the fixed power load is lower than the preset level, the fixed power load is controlled to stop operation. For example, if it is an ordinary light, it will be turned off; if it is an emergency light with a high importance level, it will operate normally. In some embodiments, for a fixed power load whose importance level is lower than a preset level, the fixed power load is controlled to operate intermittently, that is, to operate normally for a period of time and stop for a period of time. The specific stop or normal operation time is based on the DC load. Actual use demand settings.
  • the electric current or electric power consumption of the DC load is also monitored.
  • this disclosure provides two ways to obtain the user power. One is to monitor the current consumption of the DC load and calculate the power consumption based on its voltage; the other is to directly monitor the DC load. Power consumption.
  • step 401 the DC power consumption voltage and power are monitored.
  • step 402 it is determined whether the electrical voltage is within the response interval, and if the electrical voltage is within the response interval, step 403 is executed. If the power usage voltage is not within the response interval and is not within the protection interval (that is, the power usage voltage is within the isolation interval or the normal operation interval), step 407 is executed.
  • step 403 it is determined whether the electric power used is greater than the set power, and if the electric power used is greater than the set power, step 404 is executed. If the electric power used is not greater than the set power, step 405 or 406 is executed.
  • step 404 the operation is stopped and no electricity is taken from the power supply side.
  • step 405 normal operation is performed.
  • step 406 the operation is stopped or intermittently operated according to the DC load importance level set by the user.
  • step 407 the DC load is controlled to operate normally.
  • This embodiment is aimed at the fixed power load, when the power voltage is in the response interval, the specific response is determined according to the power consumption of the fixed power load, and a more orderly and stable response is made to the voltage change on the power supply side, thus realizing DC home Intelligent response.
  • the present disclosure provides a DC load response control device based on voltage change, which is used to implement the DC load response control method based on voltage change mentioned in the above article.
  • the structural block diagram of the DC load response control device based on voltage change provided in some embodiments of the present disclosure is shown in FIG. 5, and the DC load response control device includes:
  • the monitoring module 510 can monitor the voltage of the DC load.
  • the judging module 520 can judge whether the electric voltage is within the response interval.
  • the control module 530 can control the operation of the DC load according to the judgment result and the type of the DC load.
  • the above-mentioned device further includes: a classification module, which can classify the DC loads in the network according to the startup operation characteristics of each DC load in the network before monitoring the power consumption voltage of the DC loads.
  • a classification module which can classify the DC loads in the network according to the startup operation characteristics of each DC load in the network before monitoring the power consumption voltage of the DC loads.
  • the response interval is an operation interval of a plurality of operation intervals divided according to different proportional values of the rated voltage on the power supply side or different pressure differences from the rated voltage, and each operation interval corresponds to a load control scheme,
  • the load control scheme corresponding to the response interval is to control whether the DC load is running or adjust the operating parameters of the DC load according to the voltage change parameters.
  • the specific interval division is the same or similar to that mentioned in the above embodiments.
  • control module 530 can, when the type of the DC load is an adjustable power load, and if the result of the judgment is that the power consumption voltage is within the response interval, control the corresponding relationship between the preset voltage and the operating parameters.
  • the operating parameters of the DC load decrease or increase; if the result of the judgment is that the electrical voltage is not within the response interval and not within the protection interval, the DC load is controlled to operate normally without responding.
  • control module 530 can control the DC load to enter the operation waiting state when the type of the DC load is a transferable power load, and if the judgment result is that the electric voltage is within the response interval, and determine whether the waiting time is If it is greater than the first set time, control the DC load to enter the running state. If the judgment result is that the electrical voltage is not within the response interval and is not within the protection interval, the control module 530 controls the normal operation of the DC load, or judges whether the electrical voltage is within the normal operating interval for longer than the second set time, If the duration is greater than the second set time, the DC load is controlled to start normal operation, and if the duration is not greater than the second set time, the DC load is controlled to enter the operation waiting state.
  • the control module 530 can determine whether the power consumption of the DC load is greater than the set power if the judgment result is that the power consumption voltage is within the response interval when the type of the DC load is a fixed power load; If the electric power is greater than the set power, the DC load is controlled to stop running; if the electric power is not greater than the set power, the DC load is controlled to operate normally, or the DC load is controlled to stop or run intermittently according to the set importance of the DC load. If the judgment result is that the voltage is not within the response interval and not within the protection interval, the DC load is controlled to operate normally.
  • the monitoring module 510 can use a sampling circuit in the DC load to monitor the voltage of the DC load.
  • the above-mentioned device can execute the method provided by the embodiment of the present disclosure, and has corresponding functional modules and beneficial effects for executing the method.
  • the method provided in the embodiment of the present disclosure please refer to the method provided in the embodiment of the present disclosure.
  • the structural schematic diagram of some embodiments of the DC load response control device of the present disclosure is shown in FIG. 6.
  • the DC load response control device includes a memory 601 and a processor 602.
  • the memory 601 is a magnetic disk, flash memory or any other non-volatile storage medium.
  • the memory is used to store the instructions in the corresponding embodiment of the above DC load response control method.
  • the processor 602 is coupled to the memory 601, and is implemented as one or more integrated circuits, such as a microprocessor or a microcontroller.
  • the processor 602 is used to execute instructions stored in the memory, and can make a more orderly and stable response to changes in the voltage on the power supply side, and achieve orderly power consumption.
  • the DC load response control device 700 includes a memory 701 and a processor 702.
  • the processor 702 is coupled to the memory 701 through the BUS bus 703.
  • the DC load response control device 700 is also connected to an external storage device 705 through a storage interface 704 to call external data, and is also connected to a network or another computer system (not shown) through a network interface 706. No more detailed introduction here.
  • data instructions are stored in the memory, and the above instructions are processed by the processor, so that a more orderly and stable response to changes in the power supply side voltage can be made, and orderly power usage can be realized.
  • the present disclosure also proposes a DC electrical appliance, including the above-mentioned DC load response control device based on voltage changes. Set the electrical voltage/power monitoring circuit for DC appliances, and cooperate with the internal control circuit to complete the load response capability of the electrical side based on voltage changes.
  • the present disclosure also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the above-mentioned DC load response control method based on voltage change is realized.
  • the device embodiments described above are merely illustrative, where the units described as separate components are or are not physically separated, and the components displayed as units are or are not physical units, that is, they are located in one place or distributed to Multiple network units. Some or all of the modules are selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each implementation manner can be implemented by means of software plus a necessary universal hardware platform, and of course, it can also be implemented by hardware.
  • the above technical solution essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic Disks, optical discs, etc., include several instructions to make a computer device (such as a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiment.

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Abstract

本公开提出一种直流负荷响应控制方法、装置及直流电器，涉及智能家居技术领域。本公开的直流负荷响应控制方法包括：监测直流负荷的用电电压；判断所述用电电压是否处于响应区间内；根据判断结果及所述直流负荷的类型，控制所述直流负荷的运行。通过本公开的方法，针对直流微网中不同类型的直流负荷，制定相应的可响应直流母线电压变化的智慧响应方案，增加响应时的功率相对稳定度，从而可使直流电压波动变化频率降低，对电源侧电压变化做出更有序、稳定的响应，实现有序用电。

Description

直流负荷响应控制方法、装置及直流电器
相关申请的交叉引用
本申请是以CN申请号为201910759991.4，申请日为2019年8月16日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。
技术领域
本公开涉及智能家居技术领域，具体而言，涉及一种直流负荷响应控制方法、装置及直流电器。
背景技术
随着科技的快速发展，对智能化需求越来越普遍，在直流微网的能源系统架构下，智能直流家居也进入人们的视野。
在能源互联网或直流微网系统中，需要实现直流微网源侧与直流负荷侧的通信响应，当电源侧的电压发生变化时，用电侧的负荷的运行状态会被动的做出相应的响应，例如当供电不足时停止运行或降低功率运行，当供电恢复时功率提升等。
发明内容
根据本公开实施例的一个方面，提供了一种直流负荷响应控制方法，包括：监测直流负荷的用电电压；判断用电电压是否处于响应区间内；和根据判断结果及直流负荷的类型，控制直流负荷的运行。
在一些实施例中，直流负荷响应控制方法还包括：在监测直流负荷的用电电压之前，根据网络中各直流负荷的启动运行特征，对网络中的直流负荷进行分类。
在一些实施例中，直流负荷的类型包括可调节功率负荷、可转移功率负荷或固定功率负荷。
在一些实施例中，响应区间为将电源侧的额定电压的比例值或与额定电压的压差划分为的多个运行区间中的一个运行区间；和，响应区间对应的负荷控制方案包括根据电压变化参数控制直流负荷是否运行或者调整直流负荷的运行参数，其中，每个运行区间对应一种负荷控制方案。
在一些实施例中，多个运行区间还包括保护区间、隔离区间和正常运行区间；和 保护区间对应的负荷控制方案包括停机保护；隔离区间对应负荷控制方案包括控制负荷正常运行，并控制负荷进行响应准备；正常运行区间对应的负荷控制方案包括控制负荷正常运行，不做响应。
在一些实施例中，在直流负荷类型为可调节功率负荷的情况下，控制直流负荷的运行包括：根据用电电压调节直流负荷的功率。
在一些实施例中，根据判断结果及直流负荷的类型，控制直流负荷的运行包括：在直流负荷的类型为可调节功率负荷的情况下若判断结果为用电电压处于响应区间内，则根据预设的电压与运行参数的对应关系，控制直流负荷的运行参数降低或升高；若判断结果为用电电压未处于响应区间内且未处于保护区间内，则控制直流负荷正常运行，不作响应。
在一些实施例中，在直流负荷的类型为可转移功率负荷的情况下，控制直流负荷的运行包括：在电压稳定的时长超过预定长度的情况下控制直流负荷运行。
在一些实施例中，根据判断结果及直流负荷的类型，控制直流负荷的运行，包括：在直流负荷的类型为可转移功率负荷的情况下，若判断结果为用电电压处于响应区间内，则控制直流负荷进入运行等待状态，并判断等待时间是否大于第一设定时间，若等待时间大于第一设定时间，则控制直流负荷进入运行状态；和若判断结果为用电电压未处于响应区间内且未处于保护区间内，则控制直流负荷正常运行，或者，判断用电电压处于正常运行区间内的时长是否大于第二设定时间，若时长大于第二设定时间，则控制直流负荷启动正常运行，若时长不大于第二设定时间，则控制直流负荷进入运行等待状态。
在一些实施例中，在直流负荷的类型为固定功率负荷的情况下，控制直流负荷的运行包括：控制直流负荷间歇运行或停止运行。
在一些实施例中，根据判断结果及直流负荷的类型，控制直流负荷的运行，包括：在直流负荷的类型为固定功率负荷的情况下，若判断结果为用电电压处于响应区间内，则判断直流负荷的用电功率是否大于设定功率；若用电功率大于设定功率，则控制直流负荷停止运行；若用电功率不大于设定功率，则控制直流负荷正常运行，或者，根据设定的直流负荷重要等级控制直流负荷停止运行或间歇运行；和若判断结果为用电电压未处于响应区间内且未处于保护区间内，则控制直流负荷正常运行。
在一些实施例中，监测直流负荷的用电电压，包括：利用直流负荷中的采样电路监测直流负荷的用电电压。
根据本发明实施例的另一个方面，提供了一种直流负荷响应控制装置，包括：监测模块，被配置为监测直流负荷的用电电压；判断模块，被配置为判断用电电压是否处于响应区间内；控制模块，被配置为根据判断结果及直流负荷的类型，控制直流负荷的运行。
根据本发明实施例的另一个方面，提供了一种直流负荷响应控制装置，包括：存储器；以及耦接至存储器的处理器，处理器被配置为基于存储在存储器的指令执行本发明实施例的直流负荷响应控制方法。
根据本发明实施例的又一个方面，提供了一种直流电器，包括：本发明实施例的基于电压变化的直流负荷响应控制装置。
根据本发明实施例的再一个方面，提供了一种计算机可读存储介质，其上存储有计算机程序，程序被处理器执行时实现如本发明实施例的直流负荷响应控制方法。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1是本公开的基于电压变化的直流负荷响应控制方法的一些实施例的流程图；
图2是本公开的可调节功率负荷的响应方法的一些实施例的流程图；
图3是本公开的可转移功率负荷的响应方法的一些实施例的流程图
图4是本公开的固定功率负荷的响应方法的一些实施例的流程图；
图5是本公开的基于电压变化的直流负荷响应控制装置的一些实施例的示意图。
图6是本公开的直流负荷响应控制装置的另一些实施例的示意图。
图7是本公开的直流负荷响应控制装置的又一些实施例的示意图。
具体实施方式
为了使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开作进一步地详细描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本公开保护的范围。
需要说明的是，本公开的说明书和权利要求书及附图中的术语“第一”、“第二” 等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下能够互换，以便这里描述的本公开的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
需要说明的是，在附图的流程图示出的步骤能够在诸如一组计算机可执行指令的计算机系统中执行，并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，能够以不同于此处的顺序执行所示出或描述的步骤。
相关技术中在面对电源侧的电压变化时，用电侧所有的负荷(使用直流电流的电器)会被动的采用统一的响应方式。这样的方式往往会导致直流电压变化频率高，例如，在某一低于正常电压的直流电压下，所有直流电器功率突然降低，而恢复到正常电压下，所有直流电器功率突然增加。统一的响应方式还可能会导致有些直流电器难以正常运行，例如，直流洗衣机正在洗衣服，若降低功率会导致洗衣机无法正常运行。若为了配合统一的响应方式设计相应的直流电器，设计和实现过程也会较为复杂。
针对直流微网中直流电器的响应方式导致直流电压变化频率高且不适用部分直流电器的问题，本公开提供一种基于电压变化的直流负荷响应控制方法、装置及直流电器，以解决直流微网中直流电器的响应方式导致直流电压变化频率高且不适用部分直流电器的问题。
下面结合附图详细说明本公开的可选实施例。
本公开的一些实施例的基于电压变化的直流负荷响应控制方法的流程图如图1所示，直流负荷响应控制方法包括以下步骤：
在S101中，监测直流负荷的用电电压。
直流负荷是指直流微网中的用电侧负载，即直流电器。直流负荷的用电电压是指直流负荷的供电端的电压，即直流母线电压。在一些实施例中，利用直流负荷中的采样电路监测直流负荷的用电电压。在一些实施例中，除了监测用电电压，还利用直流负荷中的采样电路同时监测直流负荷的用电功率，例如，在调整直流负荷的运行参数时，将监测的用电功率作为调整的基准。
在S102中，判断用电电压是否处于响应区间内。
将电源侧的额定电压的比例值或与额定电压的压差划分为多个运行区间，每个运 行区间对应一种负荷控制方案。响应区间为多个运行区间中的一个，响应区间对应的负荷控制方案为根据电压变化参数控制直流负荷是否运行，或者根据电压变化参数调整直流负荷的运行参数。电压变化参数包括：电压变化比例或电压变化压差。在一些实施例中，运行参数包括功率、档位、风速或温度中的一项或多项，与直流电器的功能有关。
在一些实施例中，所划分的运行区间包括：响应区间、正常运行区间和保护区间。保护区间对应的负荷控制方案为控制负荷保护运行，例如，停机保护；正常运行区间对应的负荷控制方案为控制负荷正常运行，不做响应。此外，在一些实施例中，为了避免电压在正常运行区间和响应区间内来回跳变，设定隔离区间，隔离区间对应的负荷控制方案为控制负荷正常运行，同时控制负荷进入响应准备。
在一些实施例中，保护区间包括高压保护区间和低压保护区间。高压保护区间的额定电压的比例值大于等于额定电压的第一比例值，低压保护区间的额定电压的比例值小于等于额定电压的第二比例值；响应区间的额定电压的比例值大于额定电压的第二比例值且小于等于额定电压的第三比例值；正常运行区间的额定电压的比例值小于额定电压的第一比例值且大于等于额定电压的第四比例值；隔离区间的额定电压的比例值小于额定电压的第四比例值且大于额定电压的第三比例值；其中，第一比例值大于第四比例值，第四比例值大于第三比例值，第三比例值大于第二比例值。高压保护区间对应的负荷控制方案为控制负荷进行高压保护；低压保护区间对应的负荷控制方案为控制负荷进行低压保护。因此，低压保护区间的最高电压低于响应区间的最低电压；响应区间的最高电压低于隔离区间的最低电压；隔离区间的最高电压低于正常运行区间的最低电压；正常运行区间的最高电压低于高压保护区间的最低电压。
在一些实施例中，对于直流微网电源侧，按照要求将额定电压的±10％以内作为可允许运行范围，或用户根据直流负载荷侧的需求设定可允许运行范围。将直流微网400VDC供电作为额定电压，将电源侧电压值分区，设定为低压保护区间、响应区间、隔离区间、正常运行区间、高压保护区间等。电压跌落或低于额定电压的-10％，即小于或等于360VDC，处于低压保护区间；电压落入额定电压的-10％～-6％，即360V～376VDC，处于响应区间；电压落入额定电压的-6％～-5％，即376V～380VDC，处于隔离区间；电压在额定电压的-5％～10％，即380V～440VDC，处于正常运行区间；当电压突变或高于额定电压的10％，即大于或等于440VDC时，处于高压保护区间。
在S103中，根据判断结果及直流负荷的类型，控制直流负荷的运行。
在一些实施例中，直流微网中的所有直流负荷分为至少三种类型，例如，直流空调为可调节功率负荷，直流洗衣机、直流电热水器等为可转移功率负荷，直流灯具、直流电视机、直流电吹风、直流电熨斗、直流电水壶等为固定功率负荷。在一些实施例中，在监测直流负荷的用电电压之前，还包括：根据网络中各直流负荷的启动运行特征，对网络中的直流负荷进行分类。
本公开针对直流微网中不同类型的直流负荷，制定相应的可响应直流母线电压变化的智慧响应方案，增加响应时的功率相对稳定度，从而使直流电压波动变化频率降低，对电源侧电压变化做出更有序、稳定的响应，实现有序用电。
下面对S103根据判断结果及直流负荷的类型，控制直流负荷的运行，进行说明。需要说明的是，本公开实施例中仅以下述情况作为举例说明，并不构成限制，本领域技术人员根据本公开构思对直流负荷划分为更多的类型，也属于本公开的保护范围。
(1)可调节功率负荷
在直流负荷的类型为可调节功率负荷的情况下，可以通过根据用电电压调节直流负荷的功率的方式控制负荷。在一些实施例中，如果判断结果为用电电压处于响应区间内，则根据预设的电压与运行参数的对应关系，控制直流负荷的运行参数降低或升高；如果判断结果为用电电压未处于响应区间内且未处于保护区间内，即用电电压处于隔离区间或正常运行区间，则控制直流负荷正常运行，不作响应。如果用电电压处于保护区间，则控制直流负荷进行低压保护或高压保护。
在一些实施例中，针对可调节功率负荷的类型，监测直流负荷的用电功率，以作为后续调整功率的基准。
电压与运行参数的对应关系，是提前设置并存储的，例如是电压值与运行参数值的对应关系，或是电压变化与运行参数变化的对应关系，例如，400V的电压对应功率为8000W，300V的电压对应功率6000W，又如，电压每跌落10V对应功率降低200W。
参见图2，以直流空调为例，
在步骤201中，监测直流空调的用电电压及功率。
在步骤202中，判断用电电压是否位于响应区间内。当用电电压在正常运行区间时，执行步骤205。当用电电压在响应区间时，执行步骤203。
在步骤203中，空调处于运行状态，并执行步骤204。另外，当用电电压在保护区间时，直流空调保护停机。当用电电压在隔离区间时，控制直流空调正常运行，做好响应准备。当用电电压处于响应区间时，空调启动运行。
在步骤204中，根据设定的电压变化区间，降低或提高直流空调做功功率。在一些实施例中，通过直接限制压缩机做功来快速响应，或直流空调后台根据通信需求(即直流母线电压的升降)设定目标温度，而非使用用户设定的目标温度，例如，在制冷模式下，想要实现做功功率降低，需要减小温差，因此可自动提高目标温度。
在步骤205中，直流空调正常运行，根据用户设定的目标温度，正常做功制冷或制热。
通过这样的方法，针对可调节功率负荷，在用电电压处于响应区间时，根据电压变化动态调整直流负荷的运行参数，对电源侧电压变化做出更有序、稳定的响应，实现了直流家居的智能化响应。
(2)可转移功率负荷
在直流负荷的类型为可转移功率负荷的情况下，可以通过在电压稳定的时长超过预定长度的情况下控制直流负荷运行的方式控制负荷。在一些实施例中,如果判断结果为用电电压处于响应区间内，则控制直流负荷进入运行等待状态(例如待机或暂停)，并判断等待时间是否大于第一设定时间，若等待时间大于第一设定时间，则控制直流负荷进入运行状态，若等待时间不大于第一设定时间，则返回继续判断监测的用电电压是否处于响应区间内。如果判断结果为用电电压未处于响应区间内，且未处于保护区间内，即用电电压处于隔离区间或正常运行区间，则：控制直流负荷正常运行(即可转移功率负荷在运行时，不做响应，直至完成本次做功)；或者，判断用电电压处于正常运行区间内的时长是否大于第二设定时间，若时长大于第二设定时间，则控制直流负荷启动正常运行，若时长不大于第二设定时间，则控制直流负荷进入运行等待状态。如果用电电压处于保护区间，则控制直流负荷进行低压保护或高压保护。
第一设定时间是用户需求时间，即用户可接受的等待时间，第一设定时间为根据用户自己的需求或电器实际使用情况中的至少一项进行设置，在一些实施例中，参考直流电器长时间不运行导致物品变质的时间进行设置，如衣物在洗衣机内长时间不洗导致腐臭等。第二设定时间是设备需求时间，即设备完成一次操作所需要的时间，例如洗衣机洗完一次衣服的时间。对于第二设定时间的判断，在一些实施例中，根据直流微网的当前用电情况进行预测，以判定电压能否支撑直流电器有足够的时间来完成一次完整的操作。在一些实施例中，负荷型号不同，第一设定时间和第二设定时间的设定均不同。
参见图3，针对可转移功率负荷：
在步骤301中，监测直流负荷的用电电压。
在步骤302中，判断直流母线电压是否在响应区间内。若直流母线电压在响应区间内，则执行步骤303。如果直流母线电压在正常运行区间内，在一些实施例中，直接运行，在另一些实施例中，执行步骤306。
在步骤303中，不根据用户目标指令做功，而是进入运行等待状态，并执行步骤304。
在步骤304中，判断等待时间是否大于第一设定时间，若等待时间大于第一设定时间，则执行步骤305。若在未大于第一预定时间的情况下用电电压进入了保护区间，则返回执行步骤302。
在步骤305中，进入运行状态，避免因过度响应而导致用户损失。
在步骤306中，判断电压在正常运行区间内的时长是否大于第二设定时间，若电压在正常运行区间内的时长大于第二设定时间，则执行步骤307。
在步骤307中，开始运行。
通过这样的方法，在电压稳定时长达到预设时才运行，从而保证直流电器的电压处于正常运行区间的时间能够支撑直流电器完成一次完整的操作(例如，洗完一次衣服)，避免中途响应而导致用户损失以及影响用户体验。
通过这样的方法，针对可转移功率负荷，在用电电压处于响应区间时，根据用户需求时间来进行相应的响应，使得直流电器对电源侧电压变化做出更有序、稳定的响应，实现了有序用电和直流家居的智能化响应。
(3)固定功率负荷
在直流负荷的类型为固定功率负荷的情况下，可以通过控制直流负荷间歇运行或停止运行的方式控制负荷。在一些实施例中，如果判断结果为用电电压处于响应区间内，则判断直流负荷的用电功率是否大于设定功率；若用电功率大于设定功率，则控制直流负荷停止运行；若用电功率不大于设定功率，则控制直流负荷正常运行，或者，根据设定的直流负荷重要等级控制直流负荷停止运行或间歇运行。如果判断结果为用电电压未处于响应区间内且未处于保护区间内(即用电电压处于隔离区间或正常运行区间)，则控制直流负荷正常运行。如果用电电压处于保护区间，则控制直流负荷进行低压保护或高压保护。
在一些实施例中，设定功率为用户设定的用于区分大功率电器和小功率电器的功率值，例如，250W。在一些实施例中，直流负荷重要等级由用户根据自己的实际使用 情况设定。用电功率不大于设定功率的直流电器，在源-荷电压变化时响应的作用不大，或不能满足用电侧降功率的需求，因此，当固定功率负荷的用电电压处于响应区间内时，用电功率不大于设定功率的直流电器继续运行，不会对系统用电产生任何影响。
在一些实施例中，根据负荷的重要等级控制负荷是否运行，若固定功率负荷的重要等级高于等于预设等级(即该固定功率负荷在直流微网中比较重要)，则控制该固定功率负荷正常运行，若固定功率负荷的重要等级低于预设等级，则控制该固定功率负荷停止运行。例如，若是普通的灯，则关闭；若是应急的灯，重要等级高，则正常运行。在一些实施例中，对于重要等级低于预设等级的固定功率负荷，控制该固定功率负荷间歇运行，即正常运行一段时间，停止运行一段时间，具体停止运行或正常运行的时间根据直流负荷的实际使用需求设置。
在一些实施例中，在判断直流负荷的用电功率是否大于设定功率之前，还监测直流负荷的用电电流或用电功率。为了比较直流负荷的用电功率和设定功率，本公开提供两种用户功率的获取方式，一是监测直流负荷的用电电流，以结合其用电电压计算得到用电功率；二是直接监测直流负荷的用电功率。
如图4所示：
在步骤401中，监测直流用电电压和功率。
在步骤402中，判断用电电压是否在响应区间内，若用电电压在响应区间内，则执行步骤403。如果用电电压未处于响应区间内且未处于保护区间内(即用电电压处于隔离区间或正常运行区间)，则执行步骤407。
在步骤403中，判断用电功率是否大于设定功率，若用电功率大于设定功率，则执行步骤404。若用电功率不大于设定功率，则执行步骤405或406。
在步骤404中，停止运行，不在电源侧取电。
在步骤405中，正常运行。
在步骤406中，根据用户设定的直流负荷重要等级停止运行或间歇运行。
在步骤407中，控制直流负荷正常运行。
本实施例针对固定功率负荷，在用电电压处于响应区间时，根据固定功率负荷的用电功率大小来确定具体的响应，对电源侧电压变化做出更有序、稳定的响应，实现了直流家居的智能化响应。
需要说明的是，在上述不同的负荷类型中再进行细分，并且同一类型内的细分类型负荷之间能够协同工作。
基于同一发明构思，本公开提供了一种基于电压变化的直流负荷响应控制装置，用于实现上述文中提到的基于电压变化的直流负荷响应控制方法。
本公开的一些实施例中提供的基于电压变化的直流负荷响应控制装置的结构框图如图5所示，直流负荷响应控制装置包括：
监测模块510，能够监测直流负荷的用电电压。
判断模块520，能够判断用电电压是否处于响应区间内。
控制模块530，能够根据判断结果及直流负荷的类型，控制直流负荷的运行。
在一些实施例中，上述装置还包括：分类模块，能够在监测直流负荷的用电电压之前，根据网络中各直流负荷的启动运行特征，对网络中的直流负荷进行分类。
在一些实施例中，响应区间是按照电源侧的额定电压的不同比例值或与额定电压的不同压差划分的多个运行区间中的一个运行区间，每个运行区间对应一种负荷控制方案，响应区间对应的负荷控制方案为根据电压变化参数控制直流负荷是否运行或者调整直流负荷的运行参数。在一些实施例中，具体区间划分与上文实施例中提到的相同或相似。
在一些实施例中，控制模块530能够在直流负荷的类型为可调节功率负荷的情况下，如果判断结果为用电电压处于响应区间内，则根据预设的电压与运行参数的对应关系，控制直流负荷的运行参数降低或升高；如果判断结果为用电电压未处于响应区间内且未处于保护区间内，则控制直流负荷正常运行，不作响应。
在一些实施例中，控制模块530能够在直流负荷的类型为可转移功率负荷的情况下，如果判断结果为用电电压处于响应区间内，则控制直流负荷进入运行等待状态，并判断等待时间是否大于第一设定时间，若是，则控制直流负荷进入运行状态。如果判断结果为用电电压未处于响应区间内且未处于保护区间内，则控制模块530控制直流负荷正常运行，或者，判断用电电压处于正常运行区间内的时长是否大于第二设定时间，若时长大于第二设定时间，则控制直流负荷启动正常运行，若时长不大于第二设定时间，则控制直流负荷进入运行等待状态。
在一些实施例中，控制模块530能够在直流负荷的类型为固定功率负荷的情况下，如果判断结果为用电电压处于响应区间内，则判断直流负荷的用电功率是否大于设定功率；若用电功率大于设定功率，则控制直流负荷停止运行；若用电功率不大于设定功率，则控制直流负荷正常运行，或者，根据设定的直流负荷重要等级控制直流负荷停止运行或间歇运行。如果判断结果为用电电压未处于响应区间内且未处于保护 区间内，则控制直流负荷正常运行。
在一些实施例中，监测模块510能够利用直流负荷中的采样电路监测直流负荷的用电电压。
上述装置可执行本公开实施例所提供的方法，具备执行方法相应的功能模块和有益效果。未在本实施例中详尽描述的技术细节，可参见本公开实施例提供的方法。
本公开直流负荷响应控制装置的一些实施例的结构示意图如图6所示。直流负荷响应控制装置包括存储器601和处理器602。其中：存储器601是磁盘、闪存或其它任何非易失性存储介质。存储器用于存储上文中直流负荷响应控制方法的对应实施例中的指令。处理器602耦接至存储器601，作为一个或多个集成电路来实施，例如微处理器或微控制器。该处理器602用于执行存储器中存储的指令，能够对电源侧电压变化做出更有序、稳定的响应，实现有序用电。
在一些实施例中，如图7所示，直流负荷响应控制装置700包括存储器701和处理器702。处理器702通过BUS总线703耦合至存储器701。该直流负荷响应控制装置700还通过存储接口704连接至外部存储装置705以便调用外部数据，还通过网络接口706连接至网络或者另外一台计算机系统(未标出)。此处不再进行详细介绍。
在该实施例中，通过存储器存储数据指令，再通过处理器处理上述指令，能够对电源侧电压变化做出更有序、稳定的响应，实现有序用电。
本公开还提出一种直流电器，包括上述基于电压变化的直流负荷响应控制装置。对直流电器设定用电电压/功率监测电路，并配合内部控制电路，完成具有基于电压变化的用电侧负荷响应能力。
本公开还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上文中提到的基于电压变化的直流负荷响应控制方法。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元是或者不是物理上分开的，作为单元显示的部件是或者也不是物理单元，即位于一个地方，或者分布到多个网络单元上。根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。
通过以上的实施方式的描述，本领域的技术人员能够清楚地了解到各实施方式可借助软件加必需的通用硬件平台的方式来实现，当然也能够通过硬件实现。基于这样的理解，上述技术方案本质上或者说对现有技术做出贡献的部分能够以软件产品的形式体现出来，该计算机软件产品能够存储在计算机可读存储介质中，如ROM/RAM、 磁碟、光盘等，包括若干指令用以使得一台计算机设备(如个人计算机，服务器，或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
最后应说明的是：以上实施例仅用以说明本公开的技术方案，而非对其限制；尽管参照前述实施例对本公开进行了详细的说明，本领域的普通技术人员应当理解：其依然能够对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本公开各实施例技术方案的精神和范围。

Claims (16)

  1. 一种直流负荷响应控制方法，包括：
    监测直流负荷的用电电压；
    判断所述用电电压是否处于响应区间内；和
    根据判断结果及所述直流负荷的类型，控制所述直流负荷的运行。
  2. 根据权利要求1所述的方法，还包括：
    在监测直流负荷的用电电压之前，根据网络中各直流负荷的启动运行特征，对所述网络中的直流负荷进行分类。
  3. 根据权利要求1或2所述的方法，其中，所述直流负荷的类型包括可调节功率负荷、可转移功率负荷或固定功率负荷。
  4. 根据权利要求1所述的方法，其中，
    所述响应区间为将电源侧的额定电压的比例值或与额定电压的压差划分为的多个运行区间中的一个运行区间；和
    所述响应区间对应的负荷控制方案包括根据电压变化参数控制所述直流负荷是否运行或者调整所述直流负荷的运行参数，其中，每个运行区间对应一种负荷控制方案。
  5. 根据权利要求4所述的方法，其中，
    所述多个运行区间还包括保护区间、隔离区间和正常运行区间；和
    所述保护区间对应的负荷控制方案包括停机保护；所述隔离区间对应负荷控制方案包括控制负荷正常运行，并控制负荷进行响应准备；所述正常运行区间对应的负荷控制方案包括控制负荷正常运行，不做响应。
  6. 根据权利要求1所述的方法，其中，
    在所述直流负荷类型为可调节功率负荷的情况下，所述控制所述直流负荷的运行包括：根据用电电压调节直流负荷的功率。
  7. 根据权利要求1所述的方法，其中，所述根据判断结果及所述直流负荷的类型，控制所述直流负荷的运行包括：
    在所述直流负荷的类型为可调节功率负荷的情况下，
    若所述判断结果为所述用电电压处于所述响应区间内，则根据预设的电压与运行 参数的对应关系，控制所述直流负荷的运行参数降低或升高；和
    若所述判断结果为所述用电电压未处于所述响应区间内且未处于保护区间内，则控制所述直流负荷正常运行，不作响应。
  8. 根据权利要求1所述的方法，其中，
    在所述直流负荷的类型为可转移功率负荷的情况下，所述控制所述直流负荷的运行包括：在电压稳定的时长超过预定长度的情况下控制直流负荷运行。
  9. 根据权利要求1所述的方法，其中，所述根据判断结果及所述直流负荷的类型，控制所述直流负荷的运行，包括：
    在所述直流负荷的类型为可转移功率负荷的情况下，
    若所述判断结果为所述用电电压处于所述响应区间内，则控制所述直流负荷进入运行等待状态，并判断等待时间是否大于第一设定时间，若等待时间大于第一设定时间，则控制所述直流负荷进入运行状态；和
    若所述判断结果为所述用电电压未处于所述响应区间内且未处于保护区间内，则，
    控制所述直流负荷正常运行，或
    判断所述用电电压处于正常运行区间内的时长是否大于第二设定时间，若时长大于第二设定时间，则控制所述直流负荷启动正常运行，若时长不大于第二设定时间，则控制所述直流负荷进入运行等待状态。
  10. 根据权利要求1所述的方法，其中，
    在所述直流负荷的类型为固定功率负荷的情况下，所述控制所述直流负荷的运行包括：控制直流负荷间歇运行或停止运行。
  11. 根据权利要求1所述的方法，其中，所述根据判断结果及所述直流负荷的类型，控制所述直流负荷的运行包括：
    在所述直流负荷的类型为固定功率负荷的情况下，
    若所述判断结果为所述用电电压处于所述响应区间内，则判断所述直流负荷的用电功率是否大于设定功率；
    若所述用电功率大于所述设定功率，则控制所述直流负荷停止运行；和
    若所述用电功率不大于所述设定功率，则控制所述直流负荷正常运行，或者，根据设定的直流负荷重要等级控制所述直流负荷停止运行或间歇运行；
    和
    若所述判断结果为所述用电电压未处于所述响应区间内且未处于保护区间内，则控制所述直流负荷正常运行。
  12. 根据权利要求1至11中任一项所述的方法，其中，所述监测直流负荷的用电电压包括：
    利用所述直流负荷中的采样电路监测所述直流负荷的用电电压。
  13. 一种直流负荷响应控制装置，包括：
    监测模块，被配置为监测直流负荷的用电电压；
    判断模块，被配置为判断所述用电电压是否处于响应区间内；和
    控制模块，被配置为根据判断结果及所述直流负荷的类型，控制所述直流负荷的运行。
  14. 一种直流负荷响应控制装置，包括：
    存储器；以及
    耦接至所述存储器的处理器，所述处理器被配置为基于存储在所述存储器的指令执行如权利要求1至12任一项所述的方法。
  15. 一种直流电器，包括：权利要求13或14所述的直流负荷响应控制装置。
  16. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述程序被处理器执行时实现如权利要求1至12中任一项所述的直流负荷响应控制方法。
PCT/CN2020/100556 2019-08-16 2020-07-07 直流负荷响应控制方法、装置及直流电器 Ceased WO2021031721A1 (zh)

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