CN106945543B - Load balancing intelligent charging box - Google Patents
Load balancing intelligent charging box Download PDFInfo
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- CN106945543B CN106945543B CN201710118065.XA CN201710118065A CN106945543B CN 106945543 B CN106945543 B CN 106945543B CN 201710118065 A CN201710118065 A CN 201710118065A CN 106945543 B CN106945543 B CN 106945543B
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- charging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/22—Balancing the charge of battery modules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
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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
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
- H02J7/52—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially for charge balancing, e.g. equalisation of charge between batteries
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- 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
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
本发明涉及一种负载均衡的智能充电装置，包括：RFID模块读到充电卡通过无线射频模块发出的充电信息，并将所述充电信息发送到所述充电控制器；所述充电控制器把所述充电信息发送到所述充电服务器；所述充电服务器根据所述充电信息判断是否允许所述充电卡对应的电动车充电，如果允许，则向所述路由服务器发送允许充电的控制信号；所述路由服务器接收到所述允许充电的控制信号后，根据现在正在充电的电桩数、已用电流大小、剩余电流大小判断是否给当前用户充电，然后向所述充电控制器发送充电信号；所述充电控制器收到所述路由服务器发送过来的充电信号，判断是否允许充电，如果允许，则控制电桩向电动车充电，并根据所述充电电流信息为准发出PWM波来改变电动车充电电流、从而控制电动车的充电电流。以解决供电资源分配不合理和停车场车位无法有效的提供给需要充电电动车问题。
The invention relates to an intelligent charging device with load balance, comprising: an RFID module reads the charging information sent by a charging card through a wireless radio frequency module, and sends the charging information to the charging controller; The charging information is sent to the charging server; the charging server judges whether to allow the electric vehicle corresponding to the charging card to be charged according to the charging information, and if so, sends a control signal for allowing charging to the routing server; the After receiving the control signal for allowing charging, the routing server judges whether to charge the current user according to the number of charging piles, the amount of current used, and the amount of remaining current, and then sends a charging signal to the charging controller; the The charging controller receives the charging signal sent by the routing server, determines whether charging is allowed, and if so, controls the electric pile to charge the electric vehicle, and sends out PWM waves to change the charging current of the electric vehicle according to the charging current information. , so as to control the charging current of the electric vehicle. In order to solve the problem of unreasonable distribution of power supply resources and the inability of parking spaces to be effectively provided to electric vehicles that need to be charged.
Description
Technical Field
The invention relates to the technical field of electric vehicle charging devices, in particular to an intelligent charging box with balanced load.
Background
Along with green energy industry development, electric motor car quantity is increasing rapidly, and the electric pile is all installed to more and more places such as market, underground parking garage and fills the electric pile and satisfy the demand of charging of electric motor car.
The existing electric energy vehicle chargers are vertically installed or fixed on a wall, and the electric energy vehicle and the charger are connected through an electric energy vehicle charging line, so that long-time charging activities are carried out. However, in a large number of large parking places, a parking space for installing a charging pile can be occupied by a non-charging electric vehicle, so that the electric vehicle needing to be charged cannot be charged; meanwhile, a plurality of power supplies led out from a power supply room in a plurality of places cannot be realized or the realization cost is greatly increased, so that a plurality of single charging piles cannot be installed; at the moment, if a plurality of customers charge, some electric vehicles need to wait, and the current led out from the site is not fully utilized by the charging electric vehicle, so that the problems of resource waste and the like are caused.
Disclosure of Invention
The invention mainly aims to provide an intelligent charging box with balanced load, so as to solve the problems that power supply resources are unreasonable to distribute and parking spaces of a parking lot cannot be effectively provided for electric vehicles needing to be charged.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a load-balanced smart charging device, comprising: RFID (radio frequency identification) module, charge controller, charging server, route server, wherein:
an RFID (radio frequency identification) module reads account information sent by a charging card through a radio frequency module and sends the account information to the charging controller;
the charging controller sends the account information to the charging server;
the charging server judges whether the electric vehicle corresponding to the charging card is allowed to be charged according to the charging information, and if the electric vehicle corresponding to the charging card is allowed to be charged, the charging server sends a control signal for allowing charging to the routing server;
after receiving the control signal allowing charging, the routing server judges whether to charge the current electric vehicle according to the number of electric piles, the magnitude of used current and the magnitude of residual current which are currently charged, and then sends information about whether to allow charging and information about current allowing charging to the charging controller;
the charging controller receives the information whether charging is allowed and the information of the charging current allowed from the routing server, judges whether charging is allowed, and controls the electric pile to charge the electric vehicle through task scheduling and the information of the charging current allowed if charging is allowed; the charging current of the electric vehicle can be controlled by Pulse Width Modulation (PWM) waves during the charging process;
the charging controller transmits the charging information to the charging server; the method specifically comprises the following steps:
the routing server forwards the charging information on the charging controller to a charging server;
when the first electric pile allows and starts to charge, the charging server firstly gives the lowest charging current to the first electric pile through the charging controller, then distributes residual current to the electric pile which is being charged, and if the residual current is larger than the maximum current allowed by the first electric pile, the first electric pile is adjusted to be charged with the allowed maximum current;
when a new electric pile starts to be charged and the existing electric pile is charged, the charging server changes the current of the charging electric pile into the lowest charging current through the charging controller, judges whether the residual current is larger than the lowest charging current, if so, the new electric pile is allowed to be charged with the lowest charging current, and if not, the new electric pile is not allowed to start to be charged; after the current electric piles enter charging, averagely distributing residual current to the electric piles being charged, and if the residual current is greater than the maximum current allowed by all the electric piles being charged, adjusting all the electric piles being charged to be charged with the allowed maximum current;
when a vehicle stops charging in the charging process, the charging server superposes current used when the charging of the charging electric pile is stopped at present on residual current through the charging controller, then the residual current is distributed to the charging electric pile, and if the residual current is larger than the maximum current allowed by all the charging electric piles, all the charging electric piles are adjusted to be charged at the allowed maximum current.
Preferably, after the routing server forwards the charging information on the charging controller to the charging server, the routing server receives the user confirmation permission information from the charging server and issues an instruction to the charging controller to permit the charging controller to be docked with the user intelligent mobile device and grant the user operation right.
The technical scheme of the invention has the following beneficial effects: the intelligent charging box with balanced load provided by the invention ensures that a field power supply room only needs to lead out a power supply line to a case; the car owner can stop the car in front of any charging pile parking space under the car owner box, and does not need to worry that the only parking space cannot be charged after being occupied; after a car owner stops the car at a parking place where a power supply line of an electric pile can be pulled to, a charging line on a charger is taken down and connected to the electric car, and then the electric car can be charged by a mobile phone APP or a special charging card; when a plurality of vehicles are charged, the charging box can equally distribute the field current to the electric vehicle which is being charged.
Drawings
Fig. 1 is a schematic structural diagram of a system according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An embodiment of the present invention provides an intelligent charging device with balanced load, as shown in fig. 1, the device includes: an RFID (radio frequency identification) module, a charging controller (the charging controller may be an MCU (micro control unit), a computer, etc.), a charging server (the charging server may be a computer, etc.), a routing server (the routing server may be a controller, such as an MCU (micro control unit), or a computer); the functions of any two or three of the charge controller, the charge server, and the route server may be implemented on the same MCU (micro control unit), computer, or computer, wherein:
the charging card is used for charging the battery, and the charging card is used for charging the battery and transmitting the charging information to the charging controller; the charging information includes: the ID number of the charging card or the electric vehicle, and the required current.
The charging controller transmits the charging information to the charging server; in other embodiments, more specifically, the routing server forwards the charging information on the charging controller to the charging server. In another embodiment, based on the above embodiment, further, after the routing server forwards the charging information on the charging controller to the charging server, after the routing server receives the user confirmation permission information from the charging server, the routing server issues an instruction to the charging controller to permit the charging controller to interface with the user smart mobile device and grant the user operation permission.
The charging server judges whether the electric vehicle corresponding to the charging card is allowed to be charged or not according to the charging information, and if the charging card is allowed to be charged, the charging server sends a control signal for allowing charging to the routing server; in another embodiment, based on the above embodiment, further, after receiving the user confirmation permission information from the charging server, the routing server issues an instruction to the charging controller to permit the charging controller to interface with the user smart mobile device and grant the user operation permission, and the charging server determines whether to allow the electric vehicle corresponding to the charging card to be charged according to the charging information and the user confirmation permission information.
After receiving the control signal allowing charging, the routing server sends a charging signal to the charging controller;
and the charging controller receives the charging signal sent by the routing server, judges whether to charge the current user according to the number of the current charging electric piles, the magnitude of the used current and the magnitude of the residual current, controls the electric piles to charge the electric vehicle if the current charging electric piles are allowed to charge the electric vehicle, and sends out Pulse Width Modulation (PWM) waves according to the charging current information to change the charging current of the electric vehicle so as to control the charging current of the electric vehicle.
The detailed flow of the charging operation principle of the charging box is introduced as follows:
a user starts charging through the intelligent charging card, before the intelligent charging card is placed in the RFID (radio frequency identification) module, when account information on the intelligent charging card is sent to the RFID (radio frequency identification) module through the radio frequency module;
the RFID (radio frequency identification) module sends the read account information to the charging controller through a serial port communication technology;
after receiving account information sent by an RFID (radio frequency identification) module, a charging controller judges whether an electric pile is in charging, if so, judges whether the account information is consistent with the account information in charging, and if so, stops the charging service of the current account;
when the charging controller receives account information sent by an RFID (radio frequency identification) module and the electric pile is not in a charging state currently, the account information is sent to a routing server through an LWIP (lightweight TCP/IP protocol) network communication technology (or through other network communication technologies);
after receiving the charging information sent by the charging controller, the routing server sends the charging information to the charging server through 3/4G network communication technology (or through other network communication technologies);
the charging server judges the received account information, if the electric vehicle corresponding to the account is allowed to be charged, a control signal allowing charging is sent to the routing server through 3/4G network communication technology (or other network communication technologies), otherwise, a control signal not allowing charging is sent to the routing server through 3/4G network communication technology (or other network communication technologies);
after receiving the permission control signal sent by the charging server, the routing server judges whether to charge the current electric vehicle according to the number of the current charging electric piles, the magnitude of the used current and the magnitude of the residual current, and if the permission is allowed, the routing server sends the information whether to allow the charging to the charging controller through an LWIP (lightweight TCP/IP protocol) communication technology;
the charging controller receives the information whether charging is allowed and the information of the charging current which is allowed from the routing server, judges whether charging is allowed, and prompts the reason of not allowing charging on a screen of the electric pile if charging is not allowed; if the charging is allowed, controlling the electric pile to charge the electric vehicle through task scheduling and the allowed charging current information; the charging current of the electric vehicle can be controlled by a Pulse Width Modulation (PWM) wave during the charging process.
Wherein, can control electric motor car charging current through Pulse Width Modulation (PWM) ripples in the charging process, specifically include: each site has a current value introduced into the charging box, namely the total current, the current used by the electric pile in the current charging is the used current, and the residual current is obtained by subtracting the current used current from the total current; the following examples describe in detail the process of controlling the charging current of an electric vehicle by means of a Pulse Width Modulation (PWM) wave:
step 1, when a first electric pile is allowed and starts to be charged, a charging server firstly gives the lowest charging current to the first electric pile through a charging controller, then distributes residual current to the electric pile being charged, and if the residual current is larger than the maximum current allowed by the first electric pile, the first electric pile is adjusted to be charged with the allowed maximum current;
step 2, when a new electric pile starts to be charged and an existing electric pile is charged, the charging server changes the current of the charging electric pile into the lowest charging current through the charging controller, judges whether the residual current is larger than the lowest charging current (if the lowest charging current is 7A, if the residual current is smaller than 7A, the electric vehicle cannot start to be charged), if so, the new electric pile is allowed to be charged with the lowest charging current, and if not, the new electric pile is not allowed to start to be charged; after the two electric piles are charged, averagely distributing residual current to the electric piles being charged, and if the residual current is greater than the maximum current allowed by the electric piles, adjusting all the electric piles being charged to be charged with the allowed maximum current;
step 3, when a new electric pile begins to charge and the existing electric pile is in the process of charging, repeating the process of the step 2;
and 4, when the charging of a vehicle is stopped (charging is finished or the charging of the electric vehicle is finished) in the charging process, when the charging of the vehicle is stopped (charging is finished or the charging of the electric vehicle is finished) in the charging process, the charging server superposes the current used when the charging of the charging electric pile is stopped currently on the residual current through the charging controller, then the residual current is distributed to the electric pile being charged, and if the residual current is larger than the maximum current allowed by all the electric piles being charged, all the electric piles being charged are adjusted to be charged at the allowed maximum current.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118065.XA CN106945543B (en) | 2017-03-01 | 2017-03-01 | Load balancing intelligent charging box |
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| CN201710118065.XA CN106945543B (en) | 2017-03-01 | 2017-03-01 | Load balancing intelligent charging box |
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| CN106945543A CN106945543A (en) | 2017-07-14 |
| CN106945543B true CN106945543B (en) | 2022-08-16 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105515117A (en) * | 2016-01-21 | 2016-04-20 | 苏州纳新新能源科技有限公司 | Intelligent management system for battery charge and discharge |
| CN105957253A (en) * | 2016-05-12 | 2016-09-21 | 芜湖恒天易开软件科技股份有限公司 | Ground lock and electric pile combined charging spot protection system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090177580A1 (en) * | 2008-01-07 | 2009-07-09 | Lowenthal Richard W | Collection of electric vehicle power consumption tax |
| CN202550595U (en) * | 2012-02-15 | 2012-11-21 | 深圳市理工新能源有限公司 | Charging system for electric vehicle |
| TWI496379B (en) * | 2013-07-26 | 2015-08-11 | Univ Nat Sun Yat Sen | Energy management method for charging station |
| US9168836B2 (en) * | 2013-12-13 | 2015-10-27 | Powin Energy Corporation | Non-traction battery controller and applications thereof |
| CN105024433B (en) * | 2015-09-01 | 2018-03-02 | 深圳市科华恒盛科技有限公司 | A kind of the charge power distribution system and method for two-way charging |
| CN105678908A (en) * | 2015-12-31 | 2016-06-15 | 宗科惠 | Electric vehicle charging method and system |
| CN106143198B (en) * | 2016-07-20 | 2018-04-17 | 深圳英宝莱科技有限公司 | A kind of electric automobile direct-current charging post and control method with multiple charging ports |
| CN106097587A (en) * | 2016-08-04 | 2016-11-09 | 刘世和 | Based on cloud platform, the distributed electric vehicle charging management system of many tenants and method |
| CN106143196A (en) * | 2016-08-04 | 2016-11-23 | 安徽卓越电气有限公司 | A kind of charging pile system of electric automobile |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515117A (en) * | 2016-01-21 | 2016-04-20 | 苏州纳新新能源科技有限公司 | Intelligent management system for battery charge and discharge |
| CN105957253A (en) * | 2016-05-12 | 2016-09-21 | 芜湖恒天易开软件科技股份有限公司 | Ground lock and electric pile combined charging spot protection system and method |
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| CN106945543A (en) | 2017-07-14 |
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