CN210350800U - Battery energy storage convergence system - Google Patents
Battery energy storage convergence system Download PDFInfo
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- CN210350800U CN210350800U CN201921104270.1U CN201921104270U CN210350800U CN 210350800 U CN210350800 U CN 210350800U CN 201921104270 U CN201921104270 U CN 201921104270U CN 210350800 U CN210350800 U CN 210350800U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
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Abstract
The utility model relates to a battery energy storage convergence system, which comprises a cabinet body, a convergence breaker and at least two battery cluster branches, wherein the convergence breaker and the at least two battery cluster branches are arranged in the cabinet body; the cabinet body is also provided with interfaces of all battery cluster branches, and the interfaces of all battery cluster branches are used for accessing the slave cluster unit cabinet; each battery cluster branch is provided with a cluster confluence circuit breaker; namely the utility model discloses a battery energy storage converge system concentrates each battery cluster branch road and converge circuit breaker and dispose at a cabinet internal, and the centralized management of being convenient for, the communication is concentrated and is disposed, reduces communication line's crisscross interference, promotes communication quality, has saved the space simultaneously, has reduced on-the-spot cable junction and the installation maintenance from the unit cabinet that clusters, concentrates on laying, reduces the installation space of container, the cost is reduced.
Description
Technical Field
The utility model belongs to battery energy storage system field, concretely relates to battery energy storage convergence system.
Background
The power energy storage technology is a requirement for developing renewable energy in China, and peak load regulation and valley filling can be performed on the power grid technology by applying the energy storage technology, so that the contradiction between power supply and power utilization is solved, the reliability and safety of a power grid system are improved, and the standby requirement and the power failure loss are reduced; as a convergence grid-connected system in the energy storage technology, the method plays an important role in improving the quality of electric energy and the stability of power supply and ensuring the safe and stable operation of a power grid.
The main circuit of the current battery energy storage system comprises a series of devices such as a fuse, a contactor and a breaker, the devices are independently arranged and are independently connected into a PCS cabinet to ensure the normal work of the system. However, the independent access of the main circuits of the multiple slave cluster unit cabinets causes the problems of large occupied space area of the main circuits of the on-site slave cluster unit cabinets, more cables, disorder and increased cable laying and maintenance cost.
Disclosure of Invention
An object of the utility model is to provide a battery energy storage system of converging for solve a plurality of independent accesses from the major loop of the unit cabinet that clusters, cause the on-the-spot major loop occupation space area from the unit cabinet that clusters big, the cable is many, mixed and disorderly problem.
In order to solve the technical problem, the utility model adopts the technical scheme that: a battery energy storage convergence system comprises a cabinet body, a convergence breaker and at least two battery cluster branches, wherein the convergence breaker and the at least two battery cluster branches are arranged in the cabinet body; the cabinet body is also provided with interfaces of all battery cluster branches, and the interfaces of all battery cluster branches are used for accessing all slave cluster unit cabinets; each battery cluster branch is provided with a cluster confluence breaker.
Furthermore, each battery cluster branch is also provided with a contactor and a fuse.
Furthermore, a shunt is arranged in each battery cluster branch and used for collecting current signals of each battery cluster branch.
Furthermore, the battery cluster unit modules in each slave cluster unit cabinet are connected with the corresponding current divider on the battery cluster branch for acquiring the current signal of each battery cluster branch.
Further, the system also comprises a detection system, wherein the detection system comprises a system unit module; the system unit module is provided with a communication interface for communicating and connecting with the battery cluster unit modules in the slave cluster unit cabinets; and the system unit module uploads the acquired working state of each battery pack and the current signal of each battery cluster branch to a background monitoring system.
Furthermore, the detection system also comprises a man-machine display module which is in communication connection with the system unit module and is used for data display and local operation.
The utility model has the advantages that: the utility model discloses a battery energy storage converge system will concentrate each battery cluster branch road and converge circuit breaker and dispose at a cabinet internal, and the centralized management of being convenient for, the communication is concentrated and is disposed, reduces communication line's crisscross interference, promotes communication quality, has saved the space simultaneously, has reduced on-the-spot cable junction and the installation maintenance from a cluster unit cabinet, concentrates on laying, reduces the installation space of container, the cost is reduced.
Drawings
Fig. 1 is a diagram of a battery energy storage and collecting system according to the present invention;
fig. 2 is an electrical diagram of the battery energy storage bus system of the present embodiment;
FIG. 3 is a block diagram of the battery energy storage and collecting system of the present embodiment;
FIG. 4 is a schematic diagram of a human-machine display module in the battery energy storage bus system of the present embodiment;
reference numerals: the system comprises a 1-cluster confluence circuit breaker, a 2-confluence circuit breaker, a 3-contactor, a 4-fuse, a 5-shunt, a 6-battery cluster unit communication module, a 7-system unit module and an 8-man-machine display module.
Detailed Description
For the purpose of illustrating the objects, aspects and advantages of the present invention in detail, the present invention will be described in further detail with reference to the following detailed description and accompanying drawings.
Fig. 1 is a diagram of a battery energy storage convergence system of the present invention, which includes a cabinet body, a convergence circuit breaker 2 and at least two battery cluster branches, the convergence circuit breaker 2 is disposed in the cabinet body, an output end of the convergence circuit breaker 2 is used for connecting to a PCS cabinet, and each battery cluster branch is connected to an input end of the convergence circuit breaker 2 after being connected in parallel; the cabinet body is also provided with interfaces of all battery cluster branches, and the interfaces of all battery cluster branches are used for accessing all slave cluster unit cabinets; and a cluster confluence circuit breaker 1, a contactor 3, a fuse 4 and a shunt 5 are arranged on each battery cluster branch.
The battery energy storage bus system further comprises a detection system, wherein the detection system comprises system unit modules 7.
Fig. 2 is an electrical diagram of the battery energy storage convergence system according to this embodiment, in which each battery cluster branch is a junction point of an external battery and an anode of a cluster unit cabinet, the external battery is connected to an anode connection position of a cluster convergence circuit breaker through a contactor, the external battery is connected to a cathode of the cluster unit cabinet and a shunt is connected to a cathode connection position of the cluster convergence circuit breaker, and the external battery is finally connected to an incoming line position of the convergence circuit breaker through an outgoing line end of each cluster convergence circuit breaker.
The circuit breaker that converges in this embodiment is equipped with electric operating mechanism additional, can realize manual and intelligent dual control, has promoted the security and the convenience of operation.
The slave cluster unit cabinet in the embodiment comprises n (n is more than or equal to 1) battery management unit modules and 1 battery cluster unit module; the shunt on each battery cluster branch is connected with the battery cluster unit module in each slave cluster unit cabinet and used for sending the collected current signal data of the corresponding loop to the battery cluster unit module to monitor the energy of the loop.
In this embodiment, each slave cluster unit in the cluster unit cabinet is connected to a primary shunt loop on a battery cluster branch via a copper bar, and an analog semaphore of the shunt is connected to the battery cluster unit module for obtaining a current signal of each battery cluster branch.
As shown in fig. 3, the system unit module is provided with a communication interface for communicating with the battery cluster unit modules in the slave cluster unit cabinets; the system unit module is in communication connection with the background monitoring system through RS485 communication of the collected working state of each battery pack and the current signal of each battery cluster branch, and the collected data are uploaded to the background monitoring system.
As another embodiment, the detection system is further provided with a battery cluster unit communication module 6 for implementing communication between the system unit module and the battery cluster unit module.
The detection system in this embodiment further includes a human machine display module, as shown in fig. 3 and 4.
The man-machine display module in the embodiment is in communication connection with the system unit module and is used for data display and local operation. For convenience of operation, the man-machine display module 8 in this embodiment is disposed on a panel of the cabinet, as shown in fig. 4.
The working process of the detection system of the battery energy storage system in the embodiment is as follows: the system unit module is in control connection with the battery cluster unit module and used for collecting data of the battery management unit module on the lower layer and uploading the working state of each battery to the system unit module, the system unit module is connected with the background monitoring system through RS485 communication and checking the working state, meanwhile, the system unit module and the man-machine display module are in data transmission through RS232 communication, data display and local operation can be carried out through the man-machine display module, an electric operating mechanism of the confluence circuit breaker is controlled, the opening and closing test operation is carried out, when the background monitoring system is right, the opening and closing control operation of the background monitoring system can also be carried out through communication, the opening and closing control operation of the confluence circuit breaker is controlled, and the safe operation is guaranteed while the convenience of operation is facilitated.
In this embodiment, the system unit module can also monitor and manage the convergence of each battery cluster branch and grid-connected convergence data, provide background monitoring data, perform safety monitoring, timely feed back and analyze fault problems, quickly locate fault points, timely solve problems, and ensure safe operation.
The working power supplies of the system unit module and the man-machine display module provide working power supplies for the modules through the power supply modules respectively arranged in the cabinet, so that the problem that the system unit module and the man-machine display module depend on external power supply, need to be provided with special circuits, and increase the workload of maintenance and overhaul is solved.
The system unit module in this embodiment adopts a processor, and specifically, the processor may adopt a CPU, an MCU, or the like which is disclosed in the related art.
The man-machine display module in the embodiment adopts the existing LED display screen, and the specific size and model can be selected according to actual needs.
The utility model discloses a battery energy storage converge system can be internal at a cabinet with each battery cluster branch road and the setting of conflux circuit breaker, carries out centralized management, has not only made things convenient for control operation, has reduced on-the-spot cable junction and installation and has maintained, concentrates on laying, has saved the space.
Claims (6)
1. A battery energy storage convergence system is characterized by comprising a cabinet body, a convergence breaker and at least two battery cluster branches, wherein the convergence breaker and the at least two battery cluster branches are arranged in the cabinet body; the cabinet body is also provided with interfaces of all battery cluster branches, and the interfaces of all battery cluster branches are used for accessing all slave cluster unit cabinets; each battery cluster branch is provided with a cluster confluence breaker.
2. The battery energy storage buss system of claim 1, wherein each battery cluster leg is further provided with a contactor and a fuse.
3. The battery energy storage and convergence system of claim 1, wherein each battery cluster branch is provided with a shunt for collecting a current signal of each battery cluster branch.
4. The battery energy storage bus system of claim 3, wherein the battery cluster unit modules in each slave cluster unit cabinet are connected to the shunt on the corresponding battery cluster branch for obtaining the current signal of each battery cluster branch.
5. The battery energy storage buss system of claim 4, further comprising a detection system comprising a system unit module; the system unit module is provided with a communication interface for communicating and connecting with the battery cluster unit modules in the slave cluster unit cabinets; and the system unit module uploads the acquired working state of each battery pack and the current signal of each battery cluster branch to a background monitoring system.
6. The battery energy storage and bus system of claim 5, wherein the detection system further comprises a human-machine display module, and the human-machine display module is in communication connection with the system unit module and is used for data display and local operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921104270.1U CN210350800U (en) | 2019-07-15 | 2019-07-15 | Battery energy storage convergence system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921104270.1U CN210350800U (en) | 2019-07-15 | 2019-07-15 | Battery energy storage convergence system |
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| CN210350800U true CN210350800U (en) | 2020-04-17 |
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| CN201921104270.1U Active CN210350800U (en) | 2019-07-15 | 2019-07-15 | Battery energy storage convergence system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4057470A4 (en) * | 2021-01-29 | 2022-09-14 | Contemporary Amperex Technology Co., Limited | Energy storage device and system, and power system |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4057470A4 (en) * | 2021-01-29 | 2022-09-14 | Contemporary Amperex Technology Co., Limited | Energy storage device and system, and power system |
| US11936220B2 (en) | 2021-01-29 | 2024-03-19 | Contemporary Amperex Technology Co., Limited | Energy storage device and system, and power system |
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