Multipurpose energy storage control cabinet

Abstract

The invention discloses a multipurpose energy storage control cabinet. A confluence unit, a control unit and a power distribution unit are arranged in a cabinet body at the same time. A high-voltage box of the power distribution unit is arranged in a high-voltage box frame of a left half area, a right half area is divided into an upper right half area and a lower right half area through an uninterruptible power supply support located in the middle, a control unit is arranged in the upper right half area, and a wiring terminal, an electric energy meter, a BMS module and a miniature circuit breaker are installed in the control unit through a guide rail support. An uninterruptible power supply is installed through an uninterruptible power supply support, a confluence unit is arranged in the right lower half area, and an isolating switch and a confluence copper bar group are installed in the confluence unit from top to bottom through a cross beam. The confluence unit, the control unit and the power distribution unit are integrated in the same cabinet body, so that the arrangement of independent cabinet bodies in the battery prefabricated cabin is effectively reduced, the space utilization rate of the cabin body is improved, meanwhile, the utilization efficiency of the space in the cabinet body is improved, and the energy density of the whole cabin is favorably improved.

Description

Technical Field

[0001] The invention relates to an energy storage control cabinet, in particular to a multi-purpose energy storage control cabinet. Background Art

[0002] The energy storage control cabinet is an integrated electrical device that installs switchgear, measuring instruments, protective devices and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the requirements of electrical wiring. It is designed to meet the normal operation requirements of the power system while ensuring easy maintenance and no safety threats to operators or surrounding equipment. When the control cabinet is in normal operation, the circuit can be connected or disconnected by manual or automatic switches. In the event of a fault or abnormal operation, the protective device can automatically cut off the circuit or sound an alarm.

[0003] As a system specifically used to control energy storage equipment, the energy storage control cabinet usually includes an intelligent controller, an LCD touch screen, a power supply, and various electrical components. It has automatic monitoring and control functions, can manage the charging and discharging process of the energy storage equipment, and can also perform system protection functions. This not only helps to save energy, but also ensures the stability and safety of the system.

[0004] However, in existing energy storage technologies, the busbar, control unit, and distribution unit are usually installed in separate cabinets, which are placed in prefabricated battery compartments. This layout makes the interior of the prefabricated compartment crowded, with low space utilization, and is not conducive to improving the energy density of the entire compartment. Therefore, it is necessary to redesign the layout of the energy storage control cabinet to solve these problems. Summary of the invention

[0005] In order to solve the deficiencies of the above-mentioned technology, the present invention provides a multi-purpose energy storage control cabinet.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a multi-purpose energy storage control cabinet, which includes a cabinet body, and the cabinet body also contains a confluence unit, a control unit and a distribution unit;

[0007] The cabinet is arranged in parallel as a left half and a right half. The high-voltage box of the distribution unit is arranged in the high-voltage box frame in the left half. The right half is divided into the upper right half and the lower right half by the uninterruptible power supply bracket in the middle. The control unit is arranged in the upper right half. The interior of the control unit is equipped with wiring terminals, electric energy meters, BMS modules and miniature circuit breakers through guide rail brackets, and the uninterruptible power supply is installed through the uninterruptible power supply bracket. The lower right half is equipped with a bus unit, and the interior of the bus unit is equipped with an isolating switch and a bus bar group from top to bottom through a crossbeam.

[0008] Furthermore, the power distribution unit includes nine high-voltage boxes evenly arranged up and down in the space divided by the high-voltage box frame, and the high-voltage box is installed on the high-voltage box frame by locking the fastening screws with the high-voltage box fixing parts.

[0009] Furthermore, the incoming busbars and outgoing busbars of the busbar group are vertically staggered, and the positive and negative connecting plates of the incoming busbars and the positive and negative connecting plates of the outgoing busbars are independently fed vertically.

[0010] Furthermore, door panels are hinged on the front sides of the upper right half and the lower right half of the cabinet, and a display control screen corresponding to the confluence unit and the control unit is arranged on the door panel located on the front side of the upper right half or the lower right half.

[0011] Furthermore, an indicator light and a 24V power module are also provided on the door panel; the indicator light is placed in a reserved hole for the indicator light, the 24V power module is mounted on the door panel by screws, and the display control screen is embedded in the reserved hole for the display screen.

[0012] Furthermore, the top of the cabinet has a top plate, and the bottom of the cabinet has a base.

[0013] Furthermore, a top plate wire binding bridge-shaped hole and a top wire threading hole are opened on the top plate.

[0014] Furthermore, the high-voltage box frame is connected to nine inclined tooth brackets on a side close to the cabinet body, and each inclined tooth bracket corresponds to the high-voltage box one by one.

[0015] Furthermore, the oblique tooth bracket includes an inclined main connecting rod body, and the main connecting rod body is connected to the high-voltage box frame.

[0016] Furthermore, a plurality of transverse rods extend outwardly from the main connecting rod, and the plurality of transverse rods are evenly spaced and arranged.

[0017] The present invention discloses a multi-purpose energy storage control cabinet, which has at least the following significant advantages:

[0018] High integration: The busbar unit, control unit and distribution unit are integrated in the same cabinet, which reduces the occupied area of ​​the battery prefabricated cabin and improves space utilization.

[0019] Optimize space layout: Through reasonable layout, each unit can be efficiently installed in the same cabinet, without the need to set up a separate distribution unit, and the cabinet helps to improve the energy density of the entire cabin.

[0020] Improve safety: Independent positive and negative connection plates are used between the high-voltage box and the busbar, which are staggered to facilitate connection and avoid interference between cables and busbars, thereby improving the safety of the connection. Through reasonable structural design and electrical layout, potential safety hazards are reduced, such as avoiding interference between cables and busbars, thereby improving the safety of the system.

[0021] Easy maintenance: As all units are installed centrally, wiring is reduced, making system maintenance and troubleshooting more convenient.

[0022] Improve adaptability: The design of the oblique tooth bracket can adapt to cables of different specifications, providing orderly sorting and classification for cables of different specifications, and enhancing the adaptability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall framework structure of the present invention.

[0024] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0025] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0026] Figure 4 This is a schematic diagram of the installation position of the busbar group of the present invention.

[0027] Figure 5 It is a schematic diagram of the structure of the oblique tooth bracket.

[0028] Figure 6 This is a schematic diagram of the state where some cables pass through the inclined tooth bracket.

[0029] In the figure: 1. cabinet; 2. high-voltage box frame; 3. control unit; 4. bus unit; 5. top plate; 6. door panel; 7. high-voltage box; 8. terminal block; 9. energy meter; 10. BMS module; 11. miniature circuit breaker; 12. uninterruptible power supply; 13. indicator light; 14. 24V power module; 15. display control panel; 16. isolating switch; 17. bus bar group; 18. base; 19. incoming bus; 20. outgoing bus; 21. oblique tooth bracket; 22; power distribution unit; 31. uninterruptible power supply bracket; 32. uninterruptible power supply tray; 51. top plate wire binding bridge hole; 52. top threading hole; 61. door panel indicator light reserved hole; 62. display screen reserved hole; 71. high-voltage box fixing parts. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Embodiment 1;

[0032] like Figure 1-3 The present invention shown provides a multi-purpose energy storage control cabinet, which includes a confluence unit, a control unit and a distribution unit, and specifically includes a cabinet body 1, which is arranged side by side as a left half and a right half. In the same energy storage control cabinet, a distribution unit 22 is arranged in the high-voltage box frame in the left half, and the distribution unit includes nine high-voltage boxes 7, which are evenly arranged up and down in the space divided by the high-voltage box frame. After the high-voltage box is installed on the high-voltage box frame, the high-voltage box fixing member 71 is locked on the high-voltage box frame 2 by tightening screws to firmly fix the high-voltage box;

[0033] In the same energy storage control cabinet, the right half is divided into the upper right half and the lower right half by the uninterruptible power supply bracket 31 located in the middle. The upper right half is equipped with a control unit. The interior of the control unit 3 is equipped with a wiring terminal 8, an electric energy meter 9, a BMS module 10, a miniature circuit breaker 11 and an uninterruptible power supply 12 through a guide rail bracket. The wiring terminal, the electric energy meter and the miniature circuit breaker are installed on the guide rail bracket that can enter and exit the upper right half. The wiring terminal, the electric energy meter and the miniature circuit breaker are fixed to the installation backplane of the cabinet by screws at corresponding positions, and the uninterruptible power supply is installed on the uninterruptible power supply tray;

[0034] In the same energy storage control cabinet, a busbar unit 4 is arranged in the lower right half area, and an isolating switch 16 and a busbar group 17 are installed from top to bottom through a crossbeam inside the busbar unit. Figure 4 As shown, the incoming busbar 19 and the outgoing busbar 20 of the busbar group are arranged in a staggered manner in the vertical direction, and the positive and negative connection plates of the incoming busbar and the positive and negative connection plates of the outgoing busbar are independently fed vertically to facilitate the connection between the incoming busbar and the outgoing busbar and the cable, and avoid interference between the cable and the busbar. The above-mentioned incoming busbar 19 is used to connect to the cable of the high-voltage box, and the outgoing busbar 20 is used to connect to the cable of the PCS equipment. Therefore, the positive connection plate of the incoming busbar, the negative connection plate of the incoming busbar, the positive connection plate of the outgoing busbar, and the negative connection plate of the outgoing busbar are arranged in a staggered manner, which is conducive to facilitating the connection between the incoming busbar and the outgoing busbar and the cable, and effectively avoiding interference between the cable and the corresponding busbar.

[0035] Door panels 6 are hinged on the front sides of the upper right half and the lower right half of the cabinet. A display control screen 15 corresponding to the convergence unit and the control unit is arranged on the door panel located on the front side of the upper right half or the lower right half. At the same time, an indicator light 13 and a 24V power supply module 14 are also arranged on the door panel; the indicator light is placed in the indicator light reserved hole 61, the 24V power supply module is installed on the door panel by screws, and the display control screen is embedded in the display screen reserved hole 62, and is fixedly installed using a matching bracket.

[0036] Embodiment 2:

[0037] On the basis of the first embodiment, Figure 5 As shown, the high-voltage box frame is connected to nine inclined tooth brackets 21 on the side close to the cabinet, and each inclined tooth bracket corresponds to the high-voltage box one by one. The inclined tooth bracket serves as a cable bracket for each high-voltage box, including an inclined main connecting rod 21a, the main connecting rod 21a is connected to the high-voltage box frame 2, and a plurality of transverse rods 21b extend outward laterally from the main connecting rod, and the plurality of transverse rods are evenly spaced. The inclined main connecting rod increases the effective area of ​​the high-voltage box, and can cover the amount of cable hanging by the transverse rod. The plurality of transverse rods can orderly sort and classify cables of various specifications on the high-voltage box, such as Figure 6 As shown, cables of different specifications can be connected to the high-voltage box through the recess of the predetermined transverse rod body. The main connecting rod body and the transverse rod body cooperate with each other to avoid cable clutter while optimizing space utilization, which is conducive to concentrating high-voltage boxes, control units and confluence units with cables of many specifications into the same energy storage control cabinet.

[0038] It is further explained that in each of the above embodiments, the BMS module system of the energy storage control cabinet may include an MBMS battery management module, a BAMS battery management module and a BMU module. Functionally, the MBMS battery management module is responsible for monitoring the total voltage, total current contactor status, temperature, safety status and real-time data of the entire cluster of batteries, and communicates with the upper-level BMS module through the CAN protocol. The BAMS battery management module collects MBMS battery management module information, calculates parameters such as the remaining capacity of multiple clusters of parallel battery stacks, and establishes communication with the energy storage control unit and PCS through various communication methods. The BMU module is responsible for collecting single cell information, performing SOC and SOH calculations, and realizing active balancing of single cells. The wiring terminal of the BAMS battery management system module is linearly connected to the MBMS battery management module, and the other end of the BAMS battery management system module is linearly connected to the BMU module. The data monitored by the MBMS battery management module is communicated to the superior BMS module through the CAN protocol, and the above data information is transmitted in real time. It can also calculate the charge and discharge current, chargeable capacity, dischargeable capacity and battery health status, and issue early warnings based on the real-time status of the battery. The MBMS module can protect the battery cluster. At the same time, the BAMS battery management system module can collect information from the lower-level MBMS battery management module to calculate and evaluate the remaining capacity, maximum charge and discharge power, and health status of multiple parallel battery stacks, and establish communication with the energy storage control unit and PCS through RS485, CAN, and Modbus-TCP / IP. It accepts scheduling from the superior management system and realizes joint operation with the PCS. The BMU collects various single-cell information voltages and temperatures of the battery, calculates and analyzes the SOC and SOH of the battery, realizes active balancing of single-cell batteries, and uploads single-cell abnormality information to the MBMS battery management module, which uses CAN bus communication to the outside.

[0039] Through the above technical scheme, in the energy storage system confluence control cabinet of the present invention, since a plurality of supporting beams are arranged in the cabinet, and since the confluence unit, the control unit and the distribution unit are installed in the cabinet through the corresponding supporting beams, that is, the confluence unit, the control unit and the distribution unit are integrated and installed in the same cabinet, compared with the prior art, by integrating the confluence unit, the control unit and the distribution unit in the same cabinet, it is beneficial to reduce the occupied area of ​​the confluence unit, the control unit and the distribution unit in the battery prefabricated cabin, thereby improving the utilization rate of the space in the battery prefabricated cabin, which is beneficial to improve the energy density of the entire cabin.

[0040] In summary, the present invention discloses a multi-purpose energy storage control cabinet, which has at least the following significant advantages:

[0041] High integration: The busbar unit, control unit and distribution unit are integrated in the same cabinet, which reduces the occupied area of ​​the battery prefabricated cabin and improves space utilization.

[0042] Optimize space layout: Through reasonable layout, each unit can be efficiently installed in the same cabinet, without the need to set up a separate distribution unit, and the cabinet helps to improve the energy density of the entire cabin.

[0043] Improve safety: Independent positive and negative connection plates are used between the high-voltage box and the busbar, which are staggered to facilitate connection and avoid interference between cables and busbars, thereby improving the safety of the connection. Through reasonable structural design and electrical layout, potential safety hazards are reduced, such as avoiding interference between cables and busbars, thereby improving the safety of the system.

[0044] Easy maintenance: As all units are installed centrally, wiring is reduced, making system maintenance and troubleshooting more convenient.

[0045] Improve adaptability: The design of the oblique tooth bracket can adapt to cables of different specifications, providing orderly sorting and classification for cables of different specifications, and enhancing the adaptability of the system.

[0046] In summary, the present invention not only optimizes the structure and performance of the energy storage control cabinet, but also improves the safety and maintenance efficiency of the system, which is of great significance for promoting the development of energy storage system technology.

[0047] The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also belong to the protection scope of the present invention.

Claims

1. A multi-purpose energy storage control cabinet, characterized in that: It comprises a cabinet (1), wherein the cabinet (1) contains a converging unit (4), a control unit (3) and a power distribution unit (22); The cabinet (1) is arranged in parallel on the left and right sides as a left half area and a right half area. The high-voltage box (7) of the power distribution unit (22) is arranged in the high-voltage box frame (2) of the left half area. The right half area is divided into a right upper half area and a right lower half area by an uninterruptible power supply bracket (31) located in the middle. The control unit is arranged in the right upper half area. The control unit (3) is equipped with a wiring terminal (8), an electric energy meter (9), a BMS module (10) and a miniature circuit breaker (11) through a guide rail bracket. The uninterruptible power supply (12) is installed through the uninterruptible power supply bracket (31). The lower right half area is equipped with a busbar unit (4). The busbar unit is equipped with an isolating switch (16) and a busbar group (17) from top to bottom through a crossbeam.

2. The multi-purpose energy storage control cabinet according to claim 1 is characterized in that: The power distribution unit comprises nine high-voltage boxes (7) evenly arranged up and down in a space divided by a high-voltage box frame (7); the high-voltage boxes are mounted on the high-voltage box frame (7) by means of locking fit between fastening screws and high-voltage box fixing members (71).

3. The multi-purpose energy storage control cabinet according to claim 1 is characterized in that: The incoming bus copper bars (19) and the outgoing bus copper bars (20) of the bus copper bar group (17) are arranged staggered in the vertical direction, and the positive and negative electrode connection plates of the incoming bus copper bars (19) and the positive and negative electrode connection plates of the outgoing bus copper bars (20) are independently fed in the vertical direction.

4. The multi-purpose energy storage control cabinet according to claim 1 is characterized in that: The front sides of the upper right half area and the lower right half area of ​​the cabinet are both hinged with door panels (6), and the door panels located at the front sides of the upper right half area or the lower right half area are provided with display control screens (15) corresponding to the confluence units and the control units.

5. The multi-purpose energy storage control cabinet according to claim 4 is characterized in that: The door panel is also provided with an indicator light (13) and a 24V power module (14); the indicator light is placed in the indicator light reserved hole (61), the 24V power module is mounted on the door panel by screws, and the display control screen is embedded in the display screen reserved hole (62).

6. The multi-purpose energy storage control cabinet according to claim 1 is characterized in that: The top of the cabinet (1) is provided with a top plate (5), and the bottom of the cabinet (1) is provided with a base (18).

7. The multi-purpose energy storage control cabinet according to claim 6 is characterized in that: The top plate (5) is provided with a top plate wire binding bridge-shaped hole (51) and a top wire threading hole (52).

8. The multi-purpose energy storage control cabinet according to any one of claims 1 to 7, characterized in that: The high-voltage box frame (2) is connected to nine inclined tooth brackets (21) on a side close to the cabinet body, and each inclined tooth bracket (21) corresponds to a high-voltage box (2) one by one.

9. The multi-purpose energy storage control cabinet according to claim 8, characterized in that: The inclined tooth bracket (21) comprises a main connecting rod body (21a) which is arranged obliquely, and the main connecting rod body (21a) is connected to the high-voltage box frame (2).

10. The multi-purpose energy storage control cabinet according to claim 9, characterized in that: A plurality of transverse rod bodies (21b) extend outwardly from the main connecting rod body, and the plurality of transverse rod bodies (21b) are evenly spaced and arranged.

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