Grid-connected energy storage container

Abstract

The utility model discloses a grid-connected energy storage container which comprises a container body and a container door, a microcomputer protection device, a temperature and humidity controller, a multifunctional ammeter and a touch screen are installed on the container door, and a temperature sensor, a humidity sensor, a heater and a cooling fan are installed in the container door. The temperature and humidity controller is respectively connected with the temperature sensor, the humidity sensor, the heater and the cooling fan; a plurality of voltage transformers, a plurality of current transformers, a switch, a frame-type universal circuit breaker, an EMS main control board, a 4GDTU module and a wiring copper bar are arranged in the box body. According to the utility model, after the grid-connected wire inlet part and the EMS data monitoring part are combined, the internal space of the container is greatly saved, and the complexity of the system is reduced.

Description

Technical Field

[0001] The utility model relates to a grid-connected energy storage container. Background Art

[0002] The existing grid-connected energy storage containers generally house the grid-connected power distribution part and the EMS data monitoring part in separate cabinets. This solution requires the use of two cabinets, which will cause space waste and inconvenience in operation. The communication between the two will be connected by various cables, which will increase the complexity of the system. In particular, after the communication cables are connected, the lines are chaotic and the possibility of interference between modules is greatly increased, which may cause communication interference and greatly reduce the stability of the system. After the two are separately housed, corresponding heat dissipation devices will be designed to protect the components in the cabinet from heat, causing protrusions or enlargement in some parts of the cabinet, increasing the complexity and causing the noise of the heat dissipation devices of the entire system to increase. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a grid-connected energy storage container which combines a grid-connected incoming line part and an EMS data monitoring part, can greatly save the internal space of the container, and reduces the complexity of the system.

[0004] The purpose of the utility model is achieved through the following technical solutions: a grid-connected energy storage container, including a box body and a box door, the box door is equipped with a microcomputer protection device, a temperature and humidity controller, a multi-function meter and a touch screen, and the box door is equipped with a temperature sensor, a humidity sensor, a heater and a heat dissipation fan; the temperature and humidity controller is respectively connected to the temperature sensor, the humidity sensor, the heater and the heat dissipation fan;

[0005] There are multiple layers of warehouses in the vertical direction inside the box. The first layer of warehouse is equipped with multiple voltage transformers and current transformers, the second layer of warehouse is equipped with switches, the third layer of warehouse is equipped with frame-type universal circuit breakers, the fourth layer of warehouse is equipped with EMS main control board and 4GDTU module, and the fifth layer of warehouse is equipped with wiring copper bars;

[0006] The external power grid is connected to the grid-connected energy storage container through a copper busbar. After the copper busbar is connected to the frame-type universal circuit breaker, a voltage transformer and a current transformer are installed on the line of the copper busbar. The voltage transformer and the current transformer are connected to a multi-function meter respectively. The multi-function meter transmits the collected voltage and current information to the EMS main control board through the standard 485 communication protocol.

[0007] The switch introduces external BMS data information, PCS status information, and customer host computer interface to the EMS main control board to achieve data exchange; the EMS main control board is also connected to the 4GDTU module, microcomputer protection device, temperature and humidity controller, and touch screen respectively;

[0008] A plurality of voltage transformers are arranged on the line between the wiring copper bar and the frame-type universal circuit breaker. The voltage transformers are connected to a microcomputer protection device, and the microcomputer protection device is connected to the frame-type universal circuit breaker.

[0009] The beneficial effect of the utility model is that after the grid-connected incoming line part and the EMS data monitoring part are merged, the internal space of the container is greatly saved. It provides a flexible choice direction for expanding the battery capacity of the entire system. The communication cables will directly enter the EMS control circuit board, without the need for complicated wiring and threading work, which reduces the complexity of the system, can greatly improve the stability of the system, and simplify the operation. At the same time, after the two parts are merged, the heat dissipation systems corresponding to the original two systems can also be simplified into one heat dissipation system, reducing the volume of the related heat dissipation system and reducing the noise caused by heat dissipation. It can be applied to a variety of container-type or cabinet-type energy storage scenarios and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the door of the grid-connected energy storage container of the utility model;

[0011] Figure 2 This is a front view of the internal body of the grid-connected energy storage container of the utility model;

[0012] Figure 3 This is a rear view of the internal body of the grid-connected energy storage container of the utility model;

[0013] Explanation of the accompanying drawings: 1-box door, 2-box body, 3-microcomputer protection device, 4-temperature and humidity controller, 5-multi-function meter, 6-touch screen, 7-voltage transformer, 8-switch, 9-frame-type universal circuit breaker, 10-EMS main control board, 11-4GDTU module, 12-current transformer, 13-wiring copper busbar. DETAILED DESCRIPTION

[0014] This system consists of a grid-connected incoming line part and an EMS data monitoring part. The grid-connected incoming line part adopts a frame-type universal circuit breaker and an incoming copper busbar connection, and is equipped with a temperature and humidity controller, a multi-function electric meter, a current transformer, a voltage transformer, and a microcomputer protection device to protect the line. The EMS data monitoring part is composed of an EMS main control board, a remote upgrade 4GDTU module, a touch screen, a switch, etc. The data monitoring part will collect data from PCS, fire protection, BMS, air conditioning, other electric meters, etc. The two parts are collected and merged in one cabinet, which can greatly save the internal space of the container. The technical solution of the utility model is further explained below in conjunction with the accompanying drawings.

[0015] like Figure 1 to Figure 3As shown, a grid-connected energy storage container of the utility model includes a box body 2 and a box door 1, a microcomputer protection device 3, a temperature and humidity controller 4, a multi-function electric meter 5 and a touch screen 6 are installed on the box door 1, and a temperature sensor, a humidity sensor, a heater and a cooling fan are installed in the box door; the temperature and humidity controller 4 is respectively connected to the temperature sensor, the humidity sensor, the heater and the cooling fan; the temperature and humidity inside the integrated cabinet for incoming line monitoring can be detected, and a heater and a cooling fan are designed inside. When it is detected that the temperature and humidity inside the cabinet exceed the preset value, corresponding dehumidification and exhaust heat dissipation operations will be performed.

[0016] There are multiple layers of warehouses in the vertical direction inside the box. The first layer of warehouse is equipped with multiple voltage transformers 7 and current transformers 12, the second layer of warehouse is equipped with a switch 8, the third layer of warehouse is equipped with a frame-type universal circuit breaker 9, the fourth layer of warehouse is equipped with an EMS main control board 10 and a 4GDTU module 11, and the fifth layer of warehouse is equipped with a wiring copper bus 13;

[0017] The external power grid is connected to the grid-connected energy storage container through the copper busbar 13. After the copper busbar 13 is connected to the frame-type universal circuit breaker 9, the voltage transformer 7 and the current transformer 12 are respectively installed on the line of the copper busbar 13; the voltage transformer 7 and the current transformer 12 are respectively connected to the multi-function meter 5, and the multi-function meter 5 transmits the collected voltage and current information to the EMS main control board 10 through the standard 485 communication protocol; the voltage transformer cooperates with the multi-function meter to collect the voltage data information of the grid-connected side circuit, and the current transformer cooperates with the multi-function meter to collect the current data information of the grid-connected side circuit, and transmits the information to the EMS main control board 10. When the data exceeds the preset value, the EMS main control board 10 controls the frame-type universal circuit breaker 9 to cut off the power supply.

[0018] The switch 8 introduces external BMS data information, PCS status information, and client host computer interface to the EMS main control board 10 to realize data exchange; the EMS main control board 10 is also connected to the 4GDTU module 11, the microcomputer protection device 3, the temperature and humidity controller 4, and the touch screen 6 respectively;

[0019] A plurality of voltage transformers are arranged on the line between the connection copper bar 13 and the frame-type universal circuit breaker 9 . The voltage transformers are connected to the microcomputer protection device 3 , and the microcomputer protection device 3 is connected to the frame-type universal circuit breaker 9 .

[0020] The microcomputer protection device 3 is provided with a controller. Once the voltage transformer's acquisition signal is detected to be abnormal, the frame-type universal circuit breaker 9 can be directly controlled to cut off the circuit. There is no need to transmit the abnormal signal to the EMS main control board through 485 communication and wait for the EMS to judge and then act. This can improve the data processing efficiency and realize high-speed monitoring of the circuit. The microcomputer protection itself has a dry contact output. Once the abnormal output occurs, the shunt acting on the frame-type universal circuit breaker 9 is directly cut off, and the abnormal data is transmitted to the EMS main control board through 485 for storage. At the same time, a voltage transformer and a current transformer are set at the output end of the frame-type universal circuit breaker 9, which can monitor the voltage and current of the circuit. When the loop voltage or current is abnormal, the frame-type universal circuit breaker 9 is controlled by the EMS main control board to cut off the circuit, realizing comprehensive monitoring of the circuit.

[0021] BMS data information is inside the converged MPPT integrated cabinet. The battery information is transmitted to the EMS main control board through Ethernet communication, and the network ports are aggregated to the switch. PCS also transmits PCS information to the EMS main control board through Ethernet communication, and the network ports are aggregated to the switch. PCS is a separate large device responsible for transmitting PCS information to the EMS main control board through Ethernet. The 4GDTU module is installed in the cabinet and is responsible for wireless communication, remote upgrade and monitoring of EMS. Through this, EMS information is transmitted to the cloud platform for remote monitoring and viewing. The EMS main control board deploys the hardware environment for EMS installation and operation, and can operate and control the actions of the entire energy storage side equipment according to the formulated EMS operation strategy, and monitor the operation data of the entire energy storage system.

[0022] The incoming line part of the utility model adopts a frame-type universal circuit breaker and an incoming copper busbar connection, and is equipped with a temperature and humidity controller, a multi-function electric meter, a current transformer, a voltage transformer, and a microcomputer protection device to protect the line. The EMS data monitoring part is composed of an EMS main control board, a remote upgrade 4GDTU module, a touch screen, a switch, etc.; the data monitoring part will collect data from PCS, fire protection, BMS, air conditioning, other electric meters, etc.; this utility model collects and merges these two parts into a cabinet. It greatly saves the internal space of the container and provides a flexible choice direction for expanding the battery capacity of the entire system. The communication cables will directly enter the EMS control circuit board, without the need for complicated wiring and threading work, reducing the complexity of the system, greatly improving the stability of the system, simplifying the operation, and simplifying the two cooling systems into one cooling system, which can reduce the volume of the related cooling system and reduce the noise caused by cooling.

[0023] Those skilled in the art will appreciate that the embodiments described herein are intended to help readers understand the principles of the present invention, and should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific variations and combinations based on the technical inspirations disclosed in the present invention without departing from the essence of the present invention, and these variations and combinations are still within the protection scope of the present invention.

Claims

1. A grid-connected energy storage container, characterized in that: The invention comprises a box body (2) and a box door (1); a microcomputer protection device (3), a temperature and humidity controller (4), a multifunctional electric meter (5) and a touch screen (6) are installed on the box door (1); a temperature sensor, a humidity sensor, a heater and a heat dissipation fan are installed in the box door; the temperature and humidity controller (4) is respectively connected to the temperature sensor, the humidity sensor, the heater and the heat dissipation fan; A plurality of warehouse bodies are arranged in a vertical direction in the box body, a plurality of voltage transformers (7) and current transformers (12) are arranged in the first warehouse body, a switch (8) is arranged in the second warehouse body, a frame-type universal circuit breaker (9) is arranged in the third warehouse body, an EMS main control board (10) and a 4GDTU module (11) are arranged in the fourth warehouse body, and a wiring copper busbar (13) is arranged in the fifth warehouse body; The external power grid is connected to the grid-connected energy storage container through a copper busbar (13). After the copper busbar (13) is connected to a frame-type universal circuit breaker (9), a voltage transformer (7) and a current transformer (12) are respectively installed on the line of the copper busbar (13); the voltage transformer (7) and the current transformer (12) are respectively connected to a multifunctional electric meter (5), and the multifunctional electric meter (5) transmits the collected voltage and current information to the EMS main control board (10) through a standard 485 communication protocol; The switch (8) introduces external BMS data information, PCS status information, and client host computer interface into the EMS main control board (10) to realize data exchange; the EMS main control board (10) is also respectively connected to the 4GDTU module (11), the microcomputer protection device (3), the temperature and humidity controller (4), and the touch screen (6); A plurality of voltage transformers are arranged on the line between the wiring copper bar (13) and the frame-type universal circuit breaker (9); the voltage transformers are connected to the microcomputer protection device (3); and the microcomputer protection device (3) is connected to the frame-type universal circuit breaker (9).

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