CN221783874U - An intelligent low-voltage complete power distribution equipment with distributed energy storage function - Google Patents
An intelligent low-voltage complete power distribution equipment with distributed energy storage function Download PDFInfo
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- CN221783874U CN221783874U CN202323323084.6U CN202323323084U CN221783874U CN 221783874 U CN221783874 U CN 221783874U CN 202323323084 U CN202323323084 U CN 202323323084U CN 221783874 U CN221783874 U CN 221783874U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 28
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 73
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 73
- 230000006854 communication Effects 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 238000013461 design Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 14
- 238000007599 discharging Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
本实用新型涉及一种具有分布式储能功能的智能型低压成套配电设备。抽屉单元和BMS装置安装于抽屉式锂电池柜内，锂电池PACK安装于抽屉单元内，BMS装置固定安装于抽屉式锂电池柜最下方;抽屉把手安装于抽屉单元的面板外侧；馈线柜通过电缆向PCS装置进行充电，PCS装置通过电缆向抽屉式锂电池柜供电，电缆从电缆孔穿入，与汇流排搭接，分支排与汇流排搭接;控制器测控终端安装于受电柜外侧，控制器人机界面安装于母联柜外侧，通讯式断路器安装于馈线柜抽屉单元的上方，EMS装置集成于PCS装置内部，EMS显示屏固定于PCS装置的门板表面。本实用新型实现了分布式储能技术与智能型低压柜的深度融合，从而达到削峰填谷、电网辅助、节约能源的目的。
The utility model relates to an intelligent low-voltage complete power distribution equipment with distributed energy storage function. The drawer unit and the BMS device are installed in the drawer-type lithium battery cabinet, the lithium battery PACK is installed in the drawer unit, and the BMS device is fixedly installed at the bottom of the drawer-type lithium battery cabinet; the drawer handle is installed on the outside of the panel of the drawer unit; the feeder cabinet charges the PCS device through the cable, and the PCS device supplies power to the drawer-type lithium battery cabinet through the cable. The cable is inserted from the cable hole and overlapped with the busbar, and the branch bus is overlapped with the busbar; the controller measurement and control terminal is installed on the outside of the power receiving cabinet, the controller human-machine interface is installed on the outside of the mother coupling cabinet, the communication circuit breaker is installed above the drawer unit of the feeder cabinet, the EMS device is integrated inside the PCS device, and the EMS display screen is fixed on the door panel surface of the PCS device. The utility model realizes the deep integration of distributed energy storage technology and intelligent low-voltage cabinets, so as to achieve the purpose of peak shaving, grid assistance, and energy saving.
Description
Technical Field
The utility model relates to the technical field of power distribution equipment, in particular to intelligent low-voltage complete power distribution equipment with a distributed energy storage function.
Background
Energy storage is one of key technologies for coping with the intermittence and fluctuation of new energy. At present, the low-voltage switch cabinet in China has entered an intelligent and communicable stage, and the bidirectional communication is a main characteristic, from a piezoelectric device element to complete equipment, the intelligent, communicable and networked functions are realized, and the functions of 'three in two' and self-adaptive spare power automatic switching are mainly realized, so that the monitoring capability of an intelligent controller is not separated, and the development of field buses and industrial Ethernet technology is not realized. But still need further improve in the aspect of distribution line load's predictability, keep electric wire netting stability and self-adaptation, simultaneously, when two female row of low-voltage cabinet all break down, lack a set of simple and easy reliable uninterrupted maintenance operation scheme, in addition, in energy storage technical field, lithium cell PACK also lacks a set of high-efficient convenient maintenance device.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides intelligent low-voltage complete power distribution equipment with a distributed energy storage function, and the equipment realizes the deep fusion of a distributed energy storage technology and an intelligent low-voltage cabinet by transmitting operation data of an intelligent controller in the low-voltage cabinet to an EMS device in an energy storage system, thereby achieving the aims of peak clipping and valley filling, power grid assistance and energy saving. In addition, the lithium battery PACK device in the device adopts drawer type structural design, so that the lithium battery PACK can be maintained or replaced in time, the operation and maintenance of the battery are simplified, and the convenience of the work such as maintenance and the like of the lithium battery PACK is greatly improved.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
An intelligent low-voltage complete power distribution equipment with a distributed energy storage function comprises a drawer type lithium battery cabinet, a busbar, a lithium battery cable, a sliding guide rail, a branch row, a BMS device cable, a BMS device, a drawer handle, a lithium battery PACK, a drawer unit, a cable hole, a cable, a PCS device, an EMS display screen and an EMS device;
The lithium battery PACK is arranged in the drawer units, and the BMS device is fixedly arranged at the lowest part of the drawer type lithium battery cabinet;
the drawer handle is arranged on the outer side of the panel of the drawer unit, and the drawer unit can be pulled out through the sliding guide rail by pulling the drawer handle outwards;
the intelligent low-voltage complete power distribution equipment with the distributed energy storage function further comprises: the device comprises a communication breaker, a controller man-machine interface, a controller measurement and control terminal, a power receiving cabinet, a feeder cabinet and a bus cabinet, wherein the feeder cabinet charges a PCS device through a cable, the PCS device supplies power to a drawer type lithium battery cabinet through the cable, the cable penetrates through a cable hole and is overlapped with a bus bar, and a branch bar is overlapped with the bus bar;
the controller measurement and control terminal is arranged on the outer side of the power receiving cabinet, the controller man-machine interface is arranged on the outer side of the bus cabinet, the communication breaker is arranged above the drawer unit of the feeder cabinet, the EMS device is integrated inside the PCS device, and the EMS display screen is fixed on the surface of a door plate of the PCS device.
Preferably: lithium battery PACK and BMS devices have employed drawer-type structural designs.
Preferably: the controller man-machine interface and the controller measurement and control terminal form an intelligent controller.
Preferably: the drawer type lithium battery cabinet is composed of four drawer units and a BMS device.
Preferably: the controller man-machine interface, the controller measurement and control terminal and the EMS device realize data transmission and sharing through serial port communication, and the controller is powered by a direct current screen in a power distribution room where the device is positioned.
Preferably: BMS device cable and lithium cell cable respectively overlap joint with the branch row, supply power to BMS device and lithium cell PACK respectively.
The utility model has the advantages that: 1. the low-voltage cabinet and the energy storage system are fused, the intelligent controllers arranged on the power receiving cabinet and the bus-bar cabinet can monitor the temperature of the bus bar and the load of the transformer, data are transmitted to an EMS device in the energy storage system, and data support is provided for comprehensive research and judgment of the EMS device.
2. Peak clipping and valley filling are carried out, the lithium battery PACK in the energy storage system is charged through the equipment to store electric energy, and the low-voltage cabinet is powered through the lithium battery PACK in the electricity price peak period, so that the electricity consumption scheme is reasonably and systematically adjusted.
3. The self-adaptive discharging is carried out, the reference data is preset, when the condition occurs, the overtemperature alarm data of the busbar and the overload data of the transformer load can be transmitted to an EMS device in the energy storage system, and the EMS device makes a discharging instruction, so that the peak load of the power grid is effectively reduced, and the running stability of the power grid is improved;
4. The maintenance work of the lithium battery PACK is efficient and convenient, when the BMS device displays that a certain lithium battery fails, the replacement and maintenance of the lithium battery PACK can be rapidly realized through the drawer module, and the convenience of the work such as maintenance and the like of the lithium battery is greatly improved;
5. And the power-uninterrupted maintenance operation is performed, when two sections of busbar simultaneously fail, the lithium battery PACK can supply power to the feeder line unit of the low-voltage line, and the power consumption requirement of a user is ensured while line maintenance is performed.
Drawings
The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.
FIG. 1 is an overall block diagram of the present utility model;
FIG. 2 is a schematic view of the drawer of the present utility model in an open state;
FIG. 3 is a side view of the present utility model;
FIG. 4 is a schematic view of the apparatus of the present utility model;
Legend description: 1. drawer type lithium battery cabinet; 2. a busbar; 3. a lithium battery cable; 4. a sliding guide rail; 5. a branch row; 6. BMS device cable; 7. BMS device; 8. a drawer handle; 9. a lithium battery PACK; 10. a drawer unit; 11. a cable hole; 12. a cable; 13. a PCS device; 14. EMS display screen; 15. an EMS device; 16. a communication circuit breaker; 17. a controller man-machine interface; 18. a controller measurement and control terminal; 19. a power receiving cabinet; 20. a feeder cabinet; 21. and a bus-bar cabinet.
Detailed Description
The embodiment of the application provides intelligent low-voltage complete power distribution equipment with a distributed energy storage function, and the equipment realizes the deep fusion of a distributed energy storage technology and an intelligent low-voltage cabinet by transmitting operation data of an intelligent controller in the low-voltage cabinet to an EMS device in an energy storage system, so that the aims of peak clipping and valley filling, power grid assistance and energy saving are fulfilled. In addition, the lithium battery PACK device in the device adopts drawer type structural design, so that the lithium battery PACK can be maintained or replaced in time, the operation and maintenance of the battery are simplified, and the convenience of the work such as maintenance and the like of the lithium battery PACK is greatly improved.
The technical scheme in the embodiment of the application has the following overall thought:
As shown in fig. 1-4, the present utility model provides an intelligent low-voltage power distribution equipment with a distributed energy storage function, which comprises a drawer type lithium battery cabinet 1, a busbar 2, a lithium battery cable 3, a sliding guide rail 4, a branch row 5, a BMS device cable 6, a BMS device 7, a drawer handle 8, a lithium battery PACK9, a drawer unit 10, a cable hole 11, a cable 12, a PCS device 13, an EMS display screen 14, an EMS device 15, a communication breaker 16, a controller man-machine interface 17, a controller measurement and control terminal 18, a power receiving cabinet 19, a feeder cabinet 20 and a bus bar 21, wherein four drawer units 10 and one BMS device 7 are installed in the drawer type lithium battery cabinet 1, the lithium battery PACK9 is installed in the drawer unit 10, and the BMS device 7 is fixedly installed at the lowest part of the drawer type lithium battery cabinet 1. The drawer handle 8 is installed outside the panel of the drawer unit 10, and pulling the drawer handle 8 outward pulls the drawer unit 10 out through the slide rail 4. Feeder cabinet 20 charges PCS device 13 through cable 12, PCS device 13 passes through cable 12 and supplies power to drawer type lithium cell cabinet 1, and cable 12 penetrates from cable hole 11, with busbar 2 overlap joint, branch row 5 and busbar 2 overlap joint, BMS device cable 6 and lithium cell cable 3 respectively with branch row 5 overlap joint, respectively to BMS device 7 and lithium cell PACK9 power supply. The controller measurement and control terminal 18 is arranged on the outer side of the power receiving cabinet 19 and is used for monitoring the temperature of the busbar and the load of the distribution circuit, the controller man-machine interface 17 is arranged on the outer side of the busbar 21 and is used for adjusting the temperature and the reference data of the load of the circuit, and the communication breaker 16 is arranged above the drawer unit of the feeder cabinet 20 and can be used for switching on and off the charge and discharge of the circuit. The EMS device 15 is integrated inside the PCS device 13, and is configured to receive temperature data of the busbar and load data of the distribution line, and the EMS display 14 is fixed on a door panel surface of the PCS device 13, and is configured to display an operating state of the energy storage system. The controller man-machine interface 17, the controller measurement and control terminal 18 and the EMS device 15 realize data transmission and sharing through serial port communication, and the controller is powered by a direct current screen in a power distribution room where the device is positioned;
When the electricity consumption is at the electricity price bottom of the valley period, the communication breaker 16 is manually closed, the feeder cabinet 20 transmits alternating current to the PCS device 13 through the cable 12, the PCS device 13 immediately inverts the alternating current into direct current, the direct current is transmitted to the busbar 2, the branch row 5 and the lithium battery cable 3 in the drawer type lithium battery cabinet 1 through the cable 12 and the cable hole 11, so that the lithium battery PACK9 is charged, when the BMS device 7 monitors that the electric quantity of the lithium battery PACK9 is full, a signal of full battery electric quantity is reported to the EMS device 15, a display screen of the EMS device 15 immediately displays a character of 'charging completion', and at the moment, the communication breaker 16 is disconnected, and the charging is stopped; when the electricity consumption is in a peak period, the electricity price is high, the frame circuit breaker of the power receiving cabinet 19 is opened, the busbar is not electrified, the communication circuit breaker 16 is manually closed, the EMS device 15 sends a discharge instruction, the lithium battery PACK9 transmits direct current to the PCS device 13 through the lithium battery cable 3, the branch row 5, the busbar 2 and the cable 12, and the PCS device 13 immediately inverts the direct current into alternating current to supply power to each drawer unit 10 of the feeder cabinet 20;
the lithium battery PACK9 and the BMS device 7 are designed in a drawer-type structure. The drawer type lithium battery cabinet 1 is composed of four drawer units 10 and a BMS device 7, and the lithium battery PACK9 is used for calculating and analyzing the SOC battery residual capacity and SOH battery health state of the lithium battery PACK9, realizing active equalization of the lithium battery PACK9 and reporting data to the EMS device 15. The lithium battery PACK9 has the service life, in the frequent charge and discharge process, the battery capacity attenuation is unavoidable, the BMS device 7 can measure basic parameters of the lithium battery PACK9, including working voltage, current, temperature and the like, when the SOH battery health state is monitored to be abnormal or the residual capacity of the SOC battery is monitored to reach the standard required to be replaced, the drawer handle 8 can be pulled outwards, the drawer unit 10 is pulled out through the sliding guide rail 4, and the lithium battery PACK9 is maintained or replaced in time, so that the operation and maintenance are simplified, and the convenience of the work such as the maintenance and the preservation of the lithium battery PACK9 is greatly improved;
By sharing the data of the intelligent controller of the low-voltage cabinet with the EMS device 15, the intelligent switching of PCS charging and discharging is realized. The power supply of the 1-section busbar and the 2-section busbar is simultaneously carried out by a 1-section transformer, the power receiving cabinet 19, the feeder cabinet 20 and the busbar cabinet 21 enter into operation, the electric quantity of the lithium battery PACK9 is in a full state, the intelligent controller of the low-voltage cabinet has the functions of monitoring the temperature of the busbar and the load of the transformer at the upper end of the power receiving cabinet 19, and the intelligent controller consists of a controller man-machine interface 17 and a controller measurement and control terminal 18; setting the reference temperature of the busbar as To through the controller human-computer interface 17, when the actual temperature T of the busbar is more than To, sending a closing instruction To the communication breaker 16 by the intelligent controller, simultaneously transmitting over-temperature alarm data To the EMS device 15, sending a discharging instruction To the drawer type lithium battery cabinet 1 immediately after the EMS device 15 receives the data, inputting direct current To the PCS device 13 by the drawer type lithium battery cabinet 1, immediately inverting the direct current into alternating current by the PCS device 13, and starting power supply To the feeder cabinet 20, wherein the frame breaker of the No. 1 power receiving cabinet 19 can be disconnected, and the 1-section busbar is in a power-off state; setting the reference load of the circuit as Po through the controller man-machine interface 17, when the actual load P of the transformer is more than Po, sending a closing instruction to the communication breaker 16 by the intelligent controller, simultaneously transmitting overload alarm data of the circuit load to the EMS device 15, sending a discharging instruction to the drawer type lithium battery cabinet 1 immediately after the EMS device 15 receives the data, inputting direct current to the PCS device 13 by the drawer type lithium battery cabinet 1, immediately inverting the direct current into alternating current by the PCS device 13, and starting power supply to the feeder cabinet 20, wherein the frame breaker of the No. 1 power receiving cabinet 19 can be disconnected, and the 1-section busbar is in a power-off state;
If two sections of bus bars simultaneously fail, maintenance operation can be performed under the condition of no power failure. When the 1-section busbar and the 2-section busbar simultaneously fail, the communication breaker 16 is manually closed, the EMS device 15 immediately sends a discharging instruction to the drawer type lithium battery cabinet 1, the drawer type lithium battery cabinet 1 inputs direct current to the PCS device 13, and the PCS device 13 immediately inverts the direct current into alternating current to start power supply to the feeder cabinet 20.
Finally, it should be noted that: it is apparent that the above examples are only illustrative of the present utility model and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (6)
1. An intelligent low-voltage complete distribution equipment with a distributed energy storage function, which is characterized by comprising: drawer type lithium battery cabinet (1), busbar (2), lithium battery cable (3), sliding guide rail (4), branch row (5), BMS device cable (6), BMS device (7), drawer handle (8), lithium battery PACK (9), drawer unit (10), cable hole (11), cable (12), PCS device (13), EMS display screen (14), EMS device (15);
Four drawer units (10) and a BMS device (7) are arranged in the drawer type lithium battery cabinet (1), a lithium battery PACK (9) is arranged in the drawer units (10), and the BMS device (7) is fixedly arranged at the lowest part of the drawer type lithium battery cabinet (1);
The drawer handle (8) is arranged on the outer side of a panel of the drawer unit (10), and the drawer unit (10) can be pulled out through the sliding guide rail (4) by pulling the drawer handle (8) outwards;
The intelligent low-voltage complete power distribution equipment with the distributed energy storage function further comprises: the intelligent power supply system comprises a communication breaker (16), a controller man-machine interface (17), a controller measurement and control terminal (18), a power receiving cabinet (19), a feeder cabinet (20) and a bus bar cabinet (21), wherein the feeder cabinet (20) charges a PCS device (13) through a cable (12), the PCS device (13) supplies power to a drawer type lithium battery cabinet (1) through the cable (12), the cable (12) penetrates from a cable hole (11) and is overlapped with a bus bar (2), and a branch bar (5) is overlapped with the bus bar (2);
The controller measurement and control terminal (18) is installed in the outside of power receiving cabinet (19), and controller man-machine interface (17) is installed in the outside of female alliance cabinet (21), and communication circuit breaker (16) are installed in the top of feeder cabinet (20) drawer unit, and EMS device (15) are integrated in PCS device (13) inside, and EMS display screen (14) are fixed in the door plant surface of PCS device (13).
2. An intelligent low voltage power distribution unit having distributed energy storage capability as claimed in claim 1, wherein: the lithium battery PACK (9) and the BMS device (7) adopt drawer type structural design.
3. An intelligent low voltage power distribution unit having distributed energy storage capability as claimed in claim 2, wherein: the controller man-machine interface (17) and the controller measurement and control terminal (18) form an intelligent controller.
4. An intelligent low voltage power distribution unit having distributed energy storage capability as claimed in claim 3, wherein: the drawer type lithium battery cabinet (1) is composed of four drawer units (10) and a BMS device (7).
5. An intelligent low voltage power distribution unit having distributed energy storage capability as claimed in claim 4, wherein: the controller man-machine interface (17), the controller measurement and control terminal (18) and the EMS device (15) realize data transmission and sharing through serial communication, and the controller is powered by a direct current screen in a power distribution room where the device is located.
6. An intelligent low voltage power distribution unit having distributed energy storage capability as claimed in claim 5, wherein: BMS device cable (6) and lithium cell cable (3) overlap joint respectively with branch row (5), supply power to BMS device (7) and lithium cell PACK (9) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323323084.6U CN221783874U (en) | 2023-12-07 | 2023-12-07 | An intelligent low-voltage complete power distribution equipment with distributed energy storage function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323323084.6U CN221783874U (en) | 2023-12-07 | 2023-12-07 | An intelligent low-voltage complete power distribution equipment with distributed energy storage function |
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| Publication Number | Publication Date |
|---|---|
| CN221783874U true CN221783874U (en) | 2024-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323323084.6U Active CN221783874U (en) | 2023-12-07 | 2023-12-07 | An intelligent low-voltage complete power distribution equipment with distributed energy storage function |
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| Country | Link |
|---|---|
| CN (1) | CN221783874U (en) |
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2023
- 2023-12-07 CN CN202323323084.6U patent/CN221783874U/en active Active
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