CN211790784U - An integrated charging station for optical storage and charging - Google Patents

Abstract

The embodiment of the utility model discloses a light-storage-charge integrated charging station. The light-storage-charge integrated charging station includes an energy storage battery system, a photovoltaic system, an energy storage converter, an AC power distribution cabinet, an energy management controller and a plurality of charging piles; the energy storage battery system includes a plurality of battery packs, each The battery pack contains a retired power battery cluster, and each battery pack is electrically connected to the energy storage converter through a bidirectional DCDC converter; the energy management controller obtains the status information of the photovoltaic system and the energy storage battery system to pass the AC power distribution cabinet. Control the on-grid state of the photovoltaic system and/or the energy storage battery system, control the power supply of the photovoltaic system, and control the charging and discharging of the corresponding retired power battery clusters through the bidirectional DCDC converter. The utility model realizes DC side isolation between clusters, eliminates direct parallel circulating current, and can realize high compatibility of differences among clusters; in addition, the energy distribution function can be optimized according to different states of discharge, and energy cluster management can be realized.

Description

An integrated charging station for optical storage and charging

technical field

The embodiments of the utility model relate to the technical field of power battery cascade utilization, in particular to a charging station integrating light storage and charging.

Background technique

Retired power batteries generally refer to the use of new energy passenger vehicles for 5 years or more or commercial vehicles for 3 years or more, and because the remaining capacity of the battery system is less than 80% of the rated capacity, it cannot meet the performance requirements of the power battery or cannot meet the Batteries retired from new energy vehicles by consumers using demand. The cascade utilization of retired power batteries is to re-form a new battery system through the steps of testing, dismantling, grading and reorganization, and continue to be used in other fields with lower performance requirements than new energy vehicles, and can continue to be used until After the capacity is lower than 40%, it will enter the recycling process such as scrap dismantling and material recovery.

It is estimated that in the 10 years from 2014 to 2024, the cumulative scrap of power lithium batteries in my country is about 1 million tons, and a 0.02kg lithium-ion battery can pollute 1 square kilometer of land for about 50 years. Therefore, the environmental protection disposal of retired power lithium batteries in my country is urgent, and there is an urgent need to speed up the development of the cascade utilization industry. From the perspective of market prospects, the economy of the cascade utilization of retired power batteries has been continuously improved, and there is a huge demand in the fields of energy storage and low-speed vehicles in my country. By 2025, the potential scale of new cascade utilization batteries in my country will be about 33.6GWh. In recent years, power battery recycling standards have been intensively issued, and relevant policies have been formulated. In 2018, the power battery traceability management platform will be launched to determine the Beijing-Tianjin-Hebei region, Jiangsu and Shanghai. 17 pilot regions and China Tower Co., Ltd. as pilot enterprises, strengthen innovation in the construction of cascade utilization business model, key technology research and development, standard and specification research and information platform construction, etc., will make cascade utilization more secure, standardized, and conducive to The industry is developing rapidly.

The charging station is not only an important infrastructure for energy replenishment of new energy vehicles, but also a large market for the growing use of retired power batteries for energy storage. Under the same configuration, the use of retired power batteries for energy storage in fast charging stations is more economical than the conventional use of new batteries of the same type. In addition, the use of retired power batteries for energy storage also has the advantage of changing the access scheme of charging equipment without increasing the capacity of the charging station to meet the demand for DC fast charging load control. The existing charging station connects the entire battery pack to the inverter through the DCDC converter, and uses the DCDC converter to control the charging and discharging voltage of the battery pack. However, the system architecture is not suitable for multiple retired power battery clusters with inconsistent battery states. The unified control of retired power battery clusters will lead to the phenomenon of inter-cluster circulation, which will reduce the battery life.

Utility model content

The utility model provides an integrated light-storage-charging charging station, which realizes the clustering dynamic management and independent control of retired power battery clusters, eliminates the circulation generated by direct parallel connection, and is beneficial to the merger of retired power battery packs.

The embodiment of the present utility model provides an integrated light-storage-charging charging station, which includes an energy storage battery system, a photovoltaic system, an energy storage converter, an AC power distribution cabinet, an energy management controller and a plurality of charging piles;

The energy storage battery system includes a plurality of battery packs, each of the battery packs includes a retired power battery cluster, and each of the battery packs is electrically connected to the energy storage converter through a bidirectional DCDC converter;

the photovoltaic system is electrically connected to the energy storage converter;

The energy storage converter is electrically connected to the AC power distribution cabinet through an AC bus;

The AC power distribution cabinet is electrically connected to the power grid and the plurality of charging piles, respectively;

The energy management controller is respectively connected in communication with the AC power distribution cabinet, the photovoltaic system, the energy storage battery system and the two-way DCDC converter, and the energy management controller is used to obtain the photovoltaic system and the energy storage battery. System status information to control the on-grid and off-grid status of the photovoltaic system and/or the energy storage battery system through the AC power distribution cabinet, and to control the power supply of the photovoltaic system and control through the bidirectional DCDC converter The corresponding charging and discharging of the decommissioned power battery cluster.

Optionally, each of the battery packs further includes a battery management module and a high-voltage power distribution module, and the battery management module is connected in communication with the retired power battery cluster and the high-voltage power distribution module, respectively. The module is in communication connection with the energy management controller;

The battery management module is used to optimally control the charging and discharging of the retired power battery cluster; the high-voltage power distribution module is used to control the on-off of the high-voltage circuit.

Optionally, the photovoltaic system includes a photovoltaic controller, a combiner box and a plurality of solar cell panels, the combiner box is electrically connected to the solar cell panel and the photovoltaic controller respectively, and the photovoltaic controller is used to control power supply output.

Optionally, the energy storage converter includes a first circuit breaker, a DC filter, an inverter, an AC filter, a relay, and a second circuit breaker that are electrically connected in sequence;

The first circuit breaker is electrically connected to the bidirectional DCDC converter and the photovoltaic controller through a DC bus, and the second circuit breaker is electrically connected to the AC power distribution cabinet through an AC bus; the inverter in communication with the energy management controller.

Optionally, the AC power distribution cabinet includes a third circuit breaker, a first contactor, a second contactor, a fourth circuit breaker, and a first electricity meter that are electrically connected in sequence, and the third circuit breaker passes through the AC bus bar. is electrically connected to the second circuit breaker in the energy storage converter; the first electricity meter is electrically connected to the power grid;

The AC power distribution cabinet further includes a second electric meter and a fifth circuit breaker that are electrically connected in sequence, and the second electric meter is electrically connected to the first contactor and the second contactor respectively through the AC bus, so the fifth circuit breaker is connected to the plurality of charging piles;

The energy management controller is connected in communication with the first contactor and the second contactor, respectively.

Optionally, the light-storage-charge integrated charging station further includes a dual-output charger and a first backup power supply, and the first backup power supply is connected between the AC power distribution cabinet and the energy storage converter. the AC bus, the dual-output charger is powered by the first backup power supply;

The dual output charger includes a first voltage output port and a second voltage output port, the photovoltaic controller, the bidirectional DCDC converter, the inverter, the energy management controller and the communication module The battery management module is powered by the first voltage output port, and the battery management module is powered by the second voltage output port.

Optionally, the light-storage-charge integrated charging station further includes a communication module, and the communication module is communicatively connected to the energy management controller for communicating with the cloud and/or the terminal.

Optionally, the optical storage-charging integrated charging station further includes an air-conditioning system, and the air-conditioning system is connected to the AC bus between the AC power distribution cabinet and the energy storage converter.

Optionally, the light-storage-charge integrated charging station includes a fire protection system and a second backup power source, and the second backup power source is connected to the AC power distribution cabinet and the energy storage converter. A bus, the fire protection system is powered by the second backup power source.

Optionally, the energy management controller is arranged in the AC power distribution cabinet.

The light-storage-charge integrated charging station provided by the embodiment of the present utility model is provided with an energy storage battery system, a photovoltaic system, an energy storage converter, an AC power distribution cabinet, an energy management controller and a plurality of charging piles. Multiple battery packs are set in the energy battery system, the battery pack contains a retired power battery cluster, and each battery pack is electrically connected to the energy storage converter through a bidirectional DCDC converter, so that the low-voltage platform clustering design can be realized. Isolation between DC sides to eliminate direct parallel circulating current; at the same time, it can achieve high compatibility of differences between clusters, so that the charging station system is compatible with batteries of different life states and different models; in addition, it can also achieve heterogeneity, and is compatible with the whole package of retired power batteries The application scheme can reduce the work of dismantling, grading and reorganization. In addition, the distribution and management of the power supply of the photovoltaic system, the energy storage battery system and the power grid through the energy management controller can optimize the energy distribution function, realize the energy cluster management, discharge according to different states, and maximize the energy storage effect; It can optimize energy scheduling function, dynamically manage according to load demand changes, and even optimize charging management according to weather changes.

Description of drawings

FIG. 1 is a schematic structural diagram of an integrated charging station with light storage and charging provided by an embodiment of the present invention.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

FIG. 1 is a schematic structural diagram of an integrated light-storage-charge charging station provided by an embodiment of the present invention. Referring to FIG. 1 , the light-storage-charge integrated charging station includes an energy storage battery system 10 , a photovoltaic system 20 , and an energy storage converter. The energy storage battery system 10 includes a plurality of battery packs 11, each of which includes a retired power battery cluster 111, Each of the battery packs 11 is electrically connected to the energy storage converter 30 through a bidirectional DCDC converter 12; the photovoltaic system 20 is electrically connected to the energy storage converter 30; the energy storage converter 30 is electrically connected to the AC power distribution cabinet 40 through an AC bus; the AC power distribution cabinet 40 is electrically connected to the power grid and the plurality of charging piles 60 respectively; the energy management controller 50 is respectively connected to the AC power distribution The cabinet 40 , the photovoltaic system 20 , the energy storage battery system 10 and the bidirectional DCDC converter 12 are connected in communication, and the energy management controller 50 is used to obtain the status information of the photovoltaic system 20 and the energy storage battery system 10 , In order to control the on-grid state of the photovoltaic system 20 and/or the energy storage battery system 10 through the AC power distribution cabinet 40 , and control the power supply of the photovoltaic system 20 and control the bidirectional DCDC converter 12 Corresponding charging and discharging of the decommissioned power battery cluster 111 .

The energy storage battery system 10 , the photovoltaic system 20 and the power grid can supply power to the charging pile 60 under the dispatch of the energy management system 50 to meet the charging demand of the charging pile 60 . In addition, since the DC voltage of the retired power battery cluster 111 is low, it is boosted by the bidirectional DCDC converter 12 and connected to the DC bus. The energy management system 50 can manage and distribute the energy of each retired power battery cluster 111, and implement cluster management. Measures to realize the connection, disconnection and variable power output of each cluster of batteries, compatible with batteries in different states, and easy for subsequent maintenance. Under the scheduling of the energy management system 50 , the integrated charging station with light storage and charging operates according to the following strategy. 7:00-11:30 belongs to the peak electricity price. At this time, the photovoltaic system 20 generates electricity first, and the energy storage battery system 10 supplies the electricity demand of the charging pile 60; 11:30-17:00 belongs to the flat electricity price. At this time, the photovoltaic system 20 The power generation efficiency is high, and power is delivered to the charging pile 60 and the energy storage battery system 10 at the same time; 17:00-21:00 belongs to the peak electricity price, and the energy storage battery system 10 supplies electricity to the charging pile 60 at this time; 22:00-5: 00 belongs to the valley power stage. At this time, the energy storage battery system 10 is charged by the power grid, and the charging demand of the charging pile 60 is supplied at the same time.

The light-storage-charge integrated charging station provided by the embodiment of the present utility model is provided with an energy storage battery system, a photovoltaic system, an energy storage converter, an AC power distribution cabinet, an energy management controller and a plurality of charging piles. Multiple battery packs are set in the energy battery system, the battery pack contains a retired power battery cluster, and each battery pack is electrically connected to the energy storage converter through a bidirectional DCDC converter, so that the low-voltage platform clustering design can be realized. Isolation between DC sides to eliminate direct parallel circulating current; at the same time, it can achieve high compatibility of differences between clusters, so that the charging station system is compatible with batteries of different life states and different models; in addition, it can also achieve heterogeneity, and is compatible with the whole package of retired power batteries The application scheme can reduce the work of dismantling, grading and reorganization. In addition, the distribution and management of the power supply of the photovoltaic system, the energy storage battery system and the power grid through the energy management controller can optimize the energy distribution function, realize the energy cluster management, discharge according to different states, and maximize the energy storage effect; It can optimize energy scheduling function, dynamically manage according to load demand changes, and even optimize charging management according to weather changes.

Specifically, in the energy storage battery system 10, each battery pack 11 further includes a battery management module 112 and a high-voltage power distribution module 113, wherein the battery management module 112 is connected to the retired power battery cluster 111 and the high-voltage power distribution module 113 respectively. Communication connection, the battery management module is in communication connection with the energy management controller 50; the battery management module 112 is used to optimally control the charging and discharging of the retired power battery cluster 111; the high-voltage power distribution module 113 is used to control the on-off of the high-voltage circuit.

Among them, the battery management module 112 is a real-time monitoring system composed of electronic circuit equipment, which is mainly used for optimal control of the charging and discharging of the retired power battery cluster 111; in addition, it also includes effective monitoring of battery voltage, battery current, and battery cluster insulation. Status, battery SOC, battery module and cell status (voltage, current, temperature, SOC, etc.), safely manage the battery cluster charging and discharging process, alarm and emergency protection for possible faults, and monitor battery modules and The operation of the battery cluster is controlled safely and optimally to ensure the safe, reliable and stable operation of the battery. The high-voltage power distribution module 113 is the core component of the high-voltage electrical system. Its main function is to control the on-off of the internal high-voltage relay through the external low-voltage control circuit, and design the circuit of the high-voltage DC power supply of the power battery according to the high-voltage power distribution box. A series of high-voltage components such as the motor controller of the steering motor, on-board chargers, air conditioners, and DC/DC converters are connected together. In addition, as shown in the figure, the battery pack 11 also includes a maintenance switch and a current sensor arranged in the high-voltage power distribution module 113. Those skilled in the art can reasonably obtain the battery pack for the above-mentioned battery pack according to the structural design of the actual battery pack. The functional modules for monitoring and management will not be repeated here.

Further, the photovoltaic system 20 includes a photovoltaic controller 21, a combiner box 22 and a plurality of solar cell panels 23. The combiner box 22 is electrically connected to the solar cell panel 23 and the photovoltaic controller 21, respectively. The photovoltaic controller 21 is used to control the power supply output.

Among them, the photovoltaic controller 21 is used in the solar power generation system to control the multi-channel solar cell array to charge the battery and the battery to supply power to the solar inverter load. The photovoltaic controller adopts a high-speed CPU microprocessor and a high-precision A/D analog-to-digital converter. It is a microcomputer data acquisition and monitoring control system. It can not only quickly collect the current working status of the photovoltaic system in real time, obtain the working information of the PV station at any time, but also accumulate the historical data of the PV station in detail. sufficient basis. In addition, the photovoltaic controller also has the function of serial communication data transmission, which can perform centralized management and remote control of multiple photovoltaic system substations. The photovoltaic controller 21 usually has 6 nominal voltage levels: 12V, 24V, 48V, 110V, 220V, 500V. By using the maximum power tracking technology, the photovoltaic controller 21 can ensure that the solar array works with maximum efficiency throughout the day and all day. . The working efficiency of photovoltaic modules can be increased by 30% (the average efficiency can be increased by 10%-25%). In addition, the photovoltaic controller 21 also includes a search function, which can periodically search for the absolute maximum power output point in the entire solar panel operating voltage range. The combiner box 22 is used in the solar photovoltaic power generation system, and the combiner box 22 is used in order to reduce the connection between the solar photovoltaic cell array and the inverter in the energy storage converter 30 . By connecting a plurality of solar panels 23 in series to form a photovoltaic array, and connecting the photovoltaic array to the combiner box 22 in parallel, and connecting the energy storage converter 30 through the photovoltaic controller 21, a photovoltaic power generation system can be formed, and can be combined with the energy storage battery The system 10 and the power grid realize grid-connected power supply. In order to improve the reliability and practicability of the system, the combiner box 22 is usually equipped with photovoltaic special DC lightning protection modules, DC fuses and circuit breakers, etc., so as to facilitate users to grasp the working conditions of photovoltaic cells in a timely and accurate manner and ensure the solar photovoltaic power generation system. Get the most out of it.

The energy storage converter 30 includes a first circuit breaker 31, a DC filter 32, an inverter 33, an AC filter 34, a relay 35 and a second circuit breaker 36 that are electrically connected in sequence; the first circuit breaker 31 The electricity is electrically connected to the bidirectional DCDC converter 12 and the photovoltaic controller 21 through the DC bus, the second circuit breaker 36 is electrically connected to the AC power distribution cabinet 40 through the AC bus; the inverter 33 is electrically connected to the The energy management controller 50 is communicatively connected.

The energy storage converter 30 (Power Conversion System, PCS) can control the charging and discharging process of the energy storage battery system 10 and the power supply of the photovoltaic system 20, perform AC-DC conversion, and can directly supply power to the AC load when there is no power grid. The energy storage converter 30 receives the control command of the energy management controller 50 through communication, and controls the converter to charge or discharge the battery according to the sign and size of the power command, so as to adjust the active power and reactive power of the grid. at the same time. The energy storage converter 30 can also communicate with the battery management module 112 in the energy storage battery system 10 through the CAN interface to obtain the status information of the battery pack 11 , which can realize the protective charging and discharging of the retired power battery cluster 11 and ensure the operation of the battery. Safety.

The AC power distribution cabinet 40 includes a third circuit breaker 41 , a first contactor 42 , a second contactor 43 , a fourth circuit breaker 44 and a first electricity meter 45 that are electrically connected in sequence, and the third circuit breaker 41 passes through the The AC bus is electrically connected to the second circuit breaker 36 in the energy storage converter 30; the first electricity meter 45 is electrically connected to the grid; the AC power distribution cabinet 40 further includes a second circuit breaker that is electrically connected in sequence Two electricity meters 46 and a fifth circuit breaker 47, the second electricity meter 46 is electrically connected to the first contactor 42 and the second contactor 43 through the AC bus, respectively, and the fifth circuit breaker 47 is connected to the first contactor 42 and the second contactor 43 respectively. The plurality of charging piles 60; the energy management controller 50 is respectively connected to the first contactor 42 and the second contactor 43 in communication.

Specifically, referring to FIG. 1 , the energy management controller 50 may generally be provided in the AC power distribution cabinet 40 . The energy management controller 50 can control the first contactor 42 and the second contactor 43 by communicating with the first contactor 42 and the second contactor 43 respectively. On the one hand, it can control the photovoltaic system 20 and the energy storage battery system and off-grid power supply, and can control the power supply of the grid at the same time.

The integrated charging station with optical storage and charging also includes a first backup power source 71 and a dual-output charger 72 , and the first backup power source 71 is connected to the AC power distribution cabinet 40 and the energy storage converter 30 . The AC bus between the two output chargers 72 is powered by the first backup power supply 71; the dual output charger 72 includes a first voltage output port 721 and a second voltage output port 722, so The photovoltaic controller 21, the bidirectional DCDC converter 12, the inverter 33 and the energy management controller 50 are powered by the first voltage output port 721, and the battery management module 112 is powered by the second voltage output port 721. The voltage output port 722 supplies power.

In order to prevent the power supply problem of the photovoltaic system and the energy storage battery system and ensure the normal operation of the control system of the integrated light-storage-charge charging station, when supplying power to the functional modules in each control system, choose to set a backup power supply and charge combination of devices. The first backup power supply 71 obtains electric energy through the AC bus, and ensures uninterrupted power supply to the dual-output charger 72 . The dual output charger 72 provides two different voltage power supplies for different control modules. As shown in the figure, the photovoltaic controller 21 , the bidirectional DCDC converter 12 , the inverter 33 and the energy management controller 50 are all powered by 24V, and the battery management module 112 is powered by 12V.

Further, in order to ensure that users or management personnel can obtain the status information of the integrated optical storage and charging station and its units in real time, the integrated optical storage and charging charging station can also be set to include a communication module 80, the communication module 80. The module 80 is communicatively connected to the energy management controller 50 for communicating with the cloud and/or the terminal. Wherein, the power supply of the communication module 80 can be powered by the first voltage output port of the dual output charger. The communication module 80 may be a wired communication module or a wireless communication module. Exemplarily, taking the 4G wireless communication module as an example, through the communication connection of the user's mobile phone and other terminal equipment, the status information of the charging station can be easily obtained, helping the user to understand the charging situation, and helping to realize a more user-friendly charging station. .

It can be understood that a complete charging station structure includes not only the power supply system and charging equipment, but also the monitoring system and its supporting settings. In order to ensure the normal operation of the charging station, on the one hand, it is necessary to conduct temperature management of the charging station to ensure the working environment temperature of the charging station; at the same time, it is also necessary to set up a fire protection system to prevent fires and other disasters in time. Therefore, the optical storage-charging integrated charging station is further provided with an air-conditioning system 91 , and the air-conditioning system 91 is connected to the AC bus between the AC power distribution cabinet 40 and the energy storage converter 30 . In addition, a fire protection system 92 and a second backup power supply 93 can be set in the optical storage-charging integrated charging station, and the second backup power supply 93 is connected to the AC power distribution cabinet 40 and the energy storage converter 30 The AC bus between the two, the fire protection system 92 is powered by the second backup power supply 93 .

Among them, the air conditioning system 91 can control the temperature of each power supply system and charging equipment to ensure a normal working temperature and avoid extreme conditions such as excessively high or low temperature from affecting the normal operation of the charging station. The fire protection system 92 can carry out danger warning, alarm and even fire protection through the uninterrupted power supply of the second backup power supply 93, so as to avoid the danger of fire in the charging station and ensure the safety of the charging station.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations and substitutions can be made to those skilled in the art without departing from the protection of the present invention scope. Therefore, although the present utility model has been described in detail through the above embodiments, the present utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present utility model. Rather, the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A light storage and charging integrated charging station is characterized by comprising an energy storage battery system, a photovoltaic system, an energy storage converter, an alternating current power distribution cabinet, an energy management controller and a plurality of charging piles;

the energy storage battery system comprises a plurality of battery packs, each battery pack comprises an ex-service power battery cluster, and each battery pack is electrically connected with the energy storage converter through a bidirectional DCDC converter;

the photovoltaic system is electrically connected with the energy storage converter;

the energy storage converter is electrically connected with the alternating current power distribution cabinet through an alternating current bus;

the alternating current power distribution cabinet is electrically connected with a power grid and the plurality of charging piles respectively;

the energy management controller is respectively in communication connection with the alternating current power distribution cabinet, the photovoltaic system, the energy storage battery system and the bidirectional DCDC converter, and is used for acquiring state information of the photovoltaic system and the energy storage battery system, controlling the grid-connected and off-grid state of the photovoltaic system and/or the energy storage battery system through the alternating current power distribution cabinet, and controlling the power supply of the photovoltaic system and the charging and discharging of the retired power battery cluster corresponding to the control of the bidirectional DCDC converter.

2. The light charging station of claim 1,

each battery pack further comprises a battery management module and a high-voltage power supply distribution module, the battery management module is respectively in communication connection with the retired power battery cluster and the high-voltage power supply distribution module, and the battery management module is in communication connection with the energy management controller;

the battery management module is used for optimally controlling the charging and discharging of the retired power battery cluster; and the high-voltage power supply distribution module is used for controlling the on-off of the high-voltage loop.

3. The light charging station of claim 1,

the photovoltaic system comprises a photovoltaic controller, a junction box and a plurality of solar panels, wherein the junction box is respectively electrically connected with the solar panels and the photovoltaic controller, and the photovoltaic controller is used for controlling power supply output.

4. The light charging station of claim 3,

the energy storage converter comprises a first circuit breaker, a direct current filter, an inverter, an alternating current filter, a relay and a second circuit breaker which are electrically connected in sequence;

the first circuit breaker is electrically connected with the bidirectional DCDC converter and the photovoltaic controller through a direct current bus, and the second circuit breaker is electrically connected with the alternating current power distribution cabinet through an alternating current bus; the inverter is in communication connection with the energy management controller.

5. The light charging station of claim 4,

the alternating current power distribution cabinet comprises a third circuit breaker, a first contactor, a second contactor, a fourth circuit breaker and a first ammeter which are electrically connected in sequence, wherein the third circuit breaker is electrically connected with the second circuit breaker in the energy storage converter through the alternating current bus; the first electric meter is electrically connected with the power grid;

the alternating current power distribution cabinet further comprises a second electric meter and a fifth circuit breaker which are electrically connected in sequence, the second electric meter is electrically connected with the first contactor and the second contactor through the alternating current bus respectively, and the fifth circuit breaker is connected with the plurality of charging piles;

the energy management controller is respectively in communication connection with the first contactor and the second contactor.

6. The light charging station of claim 4,

the light stores up and fills integration charging station still includes communication module, communication module with energy management controller communication is connected for with high in the clouds and/or terminal communication connection.

7. The light charging station of claim 6,

the optical storage and charging integrated charging station further comprises a double-path output charger and a first standby power supply, the first standby power supply is connected to the alternating current bus between the alternating current power distribution cabinet and the energy storage converter, and the double-path output charger is powered by the first standby power supply;

the two-way output charger comprises a first voltage output port and a second voltage output port, the photovoltaic controller, the bidirectional DCDC converter, the inverter, the energy management controller and the communication module are powered by the first voltage output port, and the battery management module is powered by the second voltage output port.

8. The light charging station of claim 1,

the light storage and charging integrated charging station further comprises an air conditioning system, and the air conditioning system is connected to the alternating current bus between the alternating current power distribution cabinet and the energy storage converter.

9. The light charging station of claim 1,

the light storage and charging integrated charging station comprises a fire fighting system and a second standby power supply, the second standby power supply is connected to the alternating current bus between the alternating current power distribution cabinet and the energy storage converter, and the fire fighting system is powered by the second standby power supply.

10. The light charging station of claim 1,

the energy management controller is arranged in the alternating current power distribution cabinet.

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