CN221080926U - Distributed energy storage system supporting integration of multiple parallel reserves - Google Patents
Distributed energy storage system supporting integration of multiple parallel reserves Download PDFInfo
- Publication number
- CN221080926U CN221080926U CN202322818403.4U CN202322818403U CN221080926U CN 221080926 U CN221080926 U CN 221080926U CN 202322818403 U CN202322818403 U CN 202322818403U CN 221080926 U CN221080926 U CN 221080926U
- Authority
- CN
- China
- Prior art keywords
- energy storage
- switch
- bidirectional
- reserves
- storage system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 34
- 230000010354 integration Effects 0.000 title claims abstract description 14
- 230000003068 static effect Effects 0.000 claims abstract description 29
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 27
- 230000003993 interaction Effects 0.000 claims abstract description 8
- 206010068065 Burning mouth syndrome Diseases 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 7
- 230000007613 environmental effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 9
- 238000004891 communication Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010960 cold rolled steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012983 electrochemical energy storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WVSNNWIIMPNRDB-UHFFFAOYSA-N 1,1,1,3,3,4,4,5,5,6,6,6-dodecafluorohexan-2-one Chemical group FC(F)(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WVSNNWIIMPNRDB-UHFFFAOYSA-N 0.000 description 1
- 101000878595 Arabidopsis thaliana Squalene synthase 1 Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model discloses a distributed energy storage system supporting integration of multiple parallel reserves, which comprises: the equipment cabinet is internally provided with a microsystem; the micro system is provided with an energy output port, a bidirectional AC/DC converter and an STS static change-over switch are sequentially connected between the micro system and the energy output port, and an emergency load is connected to one side of the STS static change-over switch, which is connected with the bidirectional AC/DC converter; the micro system is connected with an EMS module, and the EMS module is provided with a microprocessor TCU connected with the interaction machine and a ANUE module connected with the micro system; the problems of difficult transportation, difficult capacity expansion and low resource utilization rate can be effectively solved; the modularized design concept is adopted, batch production, stock and debugging can be realized, the production and cost management and control are convenient, and the equipment overhaul and maintenance can be convenient; the emergency backup and the quick switching are convenient, the off-grid switching is realized quickly, the energy storage resource utilization is fully exerted, and the reliability of emergency load is ensured.
Description
Technical Field
The utility model relates to the technical field of distributed electrochemical energy storage systems, in particular to a distributed energy storage system supporting integration of multiple parallel reserves.
Background
The energy storage system is an important component of a novel power system, namely a source-network-load-storage system, and is a foundation for constructing a new energy micro-grid. After an energy storage link is introduced into the system, the system can effectively realize demand side management, eliminate peak-valley difference between day and night, stabilize load, more effectively utilize power equipment, reduce electricity cost, promote the absorption and application of renewable energy sources, and can also be used as an effective means for improving the running stability of the system, participating in frequency modulation and voltage regulation and compensating load fluctuation.
At present, most of electrochemical energy storage systems are installed in a container mode, long-distance transportation is difficult, installation is inconvenient, the energy storage system only serves as a grid-connected storage function and a grid-connected release function, and when a power grid is overhauled or power failure is produced, the energy storage system enters an island protection mode, the emergency backup capacity of the energy storage system cannot be exerted, and energy storage resources cannot be reasonably utilized; in addition, once the energy storage system is installed and debugged, capacity expansion transformation is very difficult to carry out in a long term, policy sharing between new and old equipment cannot be realized, and users with capacity expansion requirements are very unfriendly.
For example, a "distributed photovoltaic and energy storage coordination control system" disclosed in chinese patent literature, its bulletin number: CN219372036U, discloses a current transformer comprising a photovoltaic device inlet wire for sensing distributed photovoltaic inlet wire interval current, the distributed photovoltaic comprising a photovoltaic inverter; the energy storage device incoming line current transformer is used for sensing incoming line interval current of the energy storage device, and the energy storage device comprises an energy storage converter; a bus voltage transformer for sensing bus interval voltage; the controller is connected with the power grid distribution center and is also respectively in communication connection with the photovoltaic inverter and the energy storage converter; the proposal still has the problems of difficult transportation, difficult capacity expansion and low resource utilization rate.
Disclosure of Invention
In order to solve the problem of inconvenient resource utilization of an energy storage system in the prior art, the utility model provides a distributed energy storage system supporting integration of multiple parallel reserves, which can effectively solve the problems of difficult transportation, difficult expansion and low resource utilization rate.
In order to achieve the above object, the present utility model provides the following technical solutions:
A distributed energy storage system supporting multiple parallel reserves integration, comprising: the equipment cabinet is internally provided with a microsystem; the micro system is provided with an energy output port, a bidirectional AC/DC converter and an STS static change-over switch are sequentially connected between the micro system and the energy output port, and an emergency load is connected to one side of the STS static change-over switch, which is connected with the bidirectional AC/DC converter; the micro system is connected with an EMS module, and the EMS module is provided with a microprocessor TCU connected with the interaction machine and a ANUE module connected with the micro system. The rapid capacity expansion interconnection is realized through the EMS module with the multichannel design, the STS static change-over switch is used for uninterruptedly switching the emergency load, the modular design concept is adopted, the mass production, the stock and the debugging can be realized, the production and the cost management and control are convenient, the equipment overhaul and the maintenance can be convenient, and the problems of difficult transportation, difficult capacity expansion and low resource utilization rate can be effectively solved.
Preferably, the microsystem comprises a battery pack, wherein the battery pack is internally provided with a primary BMS; the battery pack is connected with a high-voltage switch box, the high-voltage switch box is connected to the bidirectional AC/DC converter, and a secondary BMS is arranged in the high-voltage switch box. Charging or discharging the battery pack is achieved through a bidirectional AC/DC converter.
Preferably, an emergency load switch is arranged between the emergency load and the STS static change-over switch; and a moving ring subsystem is also arranged between the bidirectional AC/DC converter and the STS static change-over switch. The emergency load switch is used as a total output switch of emergency load, and the moving ring subsystem is used for continuously acquiring data of the currently running electrical equipment or environment by utilizing various data acquisition equipment.
Preferably, a bidirectional electric energy meter and an alternating current main inlet wire switch which are sequentially connected are arranged between the energy output port and the STS static change-over switch, and one side, connected with the bidirectional electric energy meter, of the alternating current main inlet wire switch is also connected with a surge protector and a lightning protection switch which are sequentially arranged. The AC main incoming line switch is used as a main output switch of the micro-system, and the main output is protected through the surge protector and the lightning protection switch.
Preferably, the moving ring subsystem comprises a state sensor group, wherein the state sensor group is connected with the EMS module and used for detecting internal environmental parameters of the cabinet; and the state adjusting module is connected with the EMS module and controls the environmental change inside the cabinet. And the power environment is detected through the state sensor group, and the power environment is regulated through the state regulating module.
Preferably, the cabinet comprises a spliced shell, and the spliced shell is made of cold-rolled steel; the splicing shell is connected with a bottom frame, and the bottom frame is channel steel; the bottom frame is provided with a fork truck hole. A system is installed on a cabinet, so that safety protection is realized, the overall protection level reaches IP54, and transportation and installation are convenient.
Preferably, the EMS module is connected with a switch, and the microprocessor TCU is connected with a display screen and a background; the EMS module is connected with the dynamic ring subsystem. And the communication channels of different EMS modules are connected through the switch, so that the information sharing interaction of EMS equipment of all systems is realized.
The utility model has the following advantages:
(1) The problems of difficult transportation, difficult capacity expansion and low resource utilization rate can be effectively solved; (2) The modularized design concept is adopted, batch production, stock and debugging can be realized, the production and cost management and control are convenient, and the equipment overhaul and maintenance can be convenient; (3) Modular design, extremely simple design, building block type installation, simplified field installation and simplified operation and maintenance; a system is installed on a cabinet, so that safety protection is realized; high-speed scheduling and high-density design, wherein the scheduling response time is less than 20ms, and the occupied area of a 100-215 kWh system is only 1.5-2.5 m; the emergency backup and the quick switching are convenient, the off-grid switching is realized quickly, the energy storage resource utilization is fully exerted, and the reliability of the emergency load is ensured; the multiple machines are connected in parallel, so that the capacity expansion of the system is realized rapidly, and the distribution investment is reduced.
Drawings
The drawings in the following description are merely exemplary and other implementations drawings may be derived from the drawings provided without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic front view of a cabinet in an embodiment.
Fig. 2 is a schematic side view of a cabinet in an embodiment.
Fig. 3 is a schematic rear view of the cabinet in the embodiment.
FIG. 4 is a schematic diagram of a single system main wiring in an embodiment.
FIG. 5 is a schematic diagram of a single system communication architecture in an embodiment.
FIG. 6 is a partial schematic diagram of a multi-system communication architecture in an embodiment.
In the figure:
1-a cabinet; 2-forklift holes.
Detailed Description
The following description of the embodiments of the utility model is intended to be illustrative of the specific embodiments of the utility model in which all other embodiments of the utility model, as would be apparent to one skilled in the art without undue burden, are included in the scope of the utility model.
As shown in fig. 4-6, in a preferred embodiment, the present utility model discloses a distributed energy storage system supporting multiple parallel reserves integration, comprising: the equipment cabinet is internally provided with a microsystem; the micro system is provided with an energy output port, a bidirectional AC/DC converter and an STS static change-over switch are sequentially connected between the micro system and the energy output port, and an emergency load is connected to one side of the STS static change-over switch, which is connected with the bidirectional AC/DC converter; the micro system is connected with an EMS module, and the EMS module is provided with a microprocessor TCU connected with the interaction machine and a ANUE module connected with the micro system. The rapid capacity expansion interconnection is realized through the EMS module with the multichannel design, the STS static change-over switch is used for uninterruptedly switching the emergency load, the modular design concept is adopted, the mass production, the stock and the debugging can be realized, the production and the cost management and control are convenient, the equipment overhaul and the maintenance can be convenient, and the problems of difficult transportation, difficult capacity expansion and low resource utilization rate can be effectively solved.
When the system is used, the STS static change-over switch is additionally arranged between the energy output port side of the system and the PCS, the emergency load is connected between the PCS of the bidirectional AC/DC converter and the STS static change-over switch, the switching function of the system can be realized and off-grid, the switching time of the STS static change-over switch is less than or equal to 10ms, the STS static change-over switch can serve as a UPS, the uninterrupted change-over function of the emergency load is met, and the power supply reliability of the emergency load is ensured. The energy output port is the grid side AC400V.
The EMS module of the system adopts a multi-channel management design mode, the access of 8 sets of distributed systems is supported at maximum, the EMS module of each set of system can realize mutual communication and data interaction, any EMS module exits, the operation of the system is not influenced, the multi-machine parallel management of the distributed systems can be realized, and the capacity expansion transformation of the system is facilitated.
In other embodiments, the microsystem includes a battery pack with a primary BMS built therein; the battery pack is connected with a high-voltage switch box 1GY1, the high-voltage switch box is connected to the bidirectional AC/DC converter, and a secondary BMS is arranged in the high-voltage switch box. An emergency load switch 1LK1 is arranged between the emergency load and the STS static change-over switch; and a moving ring subsystem is also arranged between the PCS and STS static change-over switch of the bidirectional AC/DC converter. The energy output port and the STS static change-over switch are provided with a bidirectional electric energy meter 1PJ1 and an alternating current main inlet wire switch 1QF1 which are connected in sequence, and one side of the alternating current main inlet wire switch, which is connected with the bidirectional electric energy meter, is also connected with a surge protector 1FS1 and a lightning protection switch 1FK1 which are arranged in sequence.
BMS is installed in the high-voltage switch box inner core battery pack. BMS, two-way AC/DC converter PCS, STS static change over switch, moving ring subsystem, electric energy meter's data access is in EMS system through RS485, CAN or ethernet, and one-level BMS is with temperature, the voltage data transmission of electric core to second grade BMS, and second grade BMS gathers group terminal voltage, electric current, busbar temperature, and second grade BMS measures battery cluster voltage, battery cluster's charge-discharge current, battery cluster's high voltage insulation resistance, gathers from one-level BMS's collection data, CAN carry out functions such as battery cluster capacity estimation, battery cluster residual charge (SOC) estimation. The secondary BMS uploads information such as battery state and battery alarm to the EMS module through the CAN or 485 network.
When the system is used, the energy storage battery is connected into the high-voltage switch box in a serial connection mode, the high-voltage switch box is connected with a PCS (direct current) of a bidirectional AC/DC (alternating current/direct current) converter in series, the storage battery can be charged or discharged, the PCS is connected with an STS (static switch) in series, and the STS power grid side is connected to a system inlet circuit breaker; an emergency load bus is led out between the PCS and the STS and a breaker is arranged and used as a total output switch of the emergency load.
In other embodiments, the bidirectional AC/DC converter PCS can realize grid-connected discharging of the storage battery and charging of the storage battery by the power grid, the system is additionally provided with 1 static change-over switch STS, the bidirectional AC/DC converter PCS and the static change-over switch STS are controlled by hard contacts to realize rapid switching of less than or equal to 10ms, when overhauling or production stopping occurs at the power grid side, the bidirectional AC/DC converter PCS rapidly detects island states to enter an off-grid operation mode, signals are simultaneously transmitted to the static change-over switch STS and the EMS module, the static change-over switch STS performs rapid cutting-off action with the power grid, the storage battery of the energy storage system can realize discharging of emergency load under off-grid, meanwhile, isolation is realized with a fault power grid, uninterrupted operation of emergency load of a user is ensured, and safe overhauling of the power grid is also ensured. Before the system is put into operation, the emergency load is connected to the emergency load switch 1LK1, the emergency load switch 1LK1 is switched on, when the system runs off the network, uninterrupted use of the emergency load can be realized, the resource utilization rate of the energy storage system is improved, and meanwhile, the investment of an emergency backup power supply can be reduced.
In other embodiments, the moving ring subsystem includes a state sensor group, the state sensor group is connected with the EMS module, and detects an internal environmental parameter of the cabinet; and the state adjusting module is connected with the EMS module and controls the environmental change inside the cabinet.
When the intelligent fire-fighting system is used, the intelligent fire-fighting system comprises the fire-fighting subsystem and the movable ring subsystem, the fire-fighting medium is perfluoro-hexanone, the intelligent fire-fighting system is pollution-free, the fire-extinguishing effect is good, the intelligent fire-fighting system is safe and reliable, and the state sensor group comprises a temperature and humidity transmitter, a smoke sensor, a water immersion sensor, an entrance guard sensor, a pressure sensor, an acousto-optic warning device and an industrial air conditioner for carrying out the omnibearing safety management of the system, so that the reliable operation and the safe operation of the system are ensured. The state adjustment module includes an air conditioner.
In other embodiments, the EMS module is connected to a switch, and the microprocessor TCU is connected to a display screen and a background; the EMS module is connected with the dynamic ring subsystem.
When the system is used, the EMS communication channels of the expansion system are accessed to the exchange machine through the preset 1 set of interaction machine, so that information sharing and interaction of EMS module equipment of all systems are realized, and the EMS module has perfect energy storage monitoring and management functions, so that detailed information of equipment such as power grid access, a two-way AC/DC converter PCS, a BMS, a fire protection system, a dynamic ring system and the like is covered, and the functions of data acquisition, data processing, data storage, data query, visual monitoring, alarm management, statistical report and the like are realized. For the combined application of multiple systems as the capacity expansion requirement, the first EMS module is used as the master control, the rest is used as the slave control, if the master control fails, one slave control is automatically used as the master control by the system, the expansion system is connected to the same platform, and the corresponding scheduling scheme can be realized at the same time.
In other embodiments, as shown in fig. 1-3, the cabinet 1 includes a splice housing, and the splice housing is made of cold rolled steel; the splicing shell is connected with a bottom frame, and the bottom frame is channel steel; the bottom frame is provided with forklift holes 2.
When the anti-rust paint is used, the length, width and height of the cabinet are controlled within 2000mm, the spliced shell is assembled by adopting cold-rolled steel welding and splicing technology, and the surface of the shell is treated by adopting outdoor anti-rust paint, so that the anti-rust paint is applicable to the outdoors, and the overall protection level reaches IP54. The bottom frame adopts the channel-section steel design to design 2 fork truck holes, the system transport of being convenient for, system overall dimension is less than container formula size, and the requirement greatly reduced to the transportation vehicle is convenient for transport and installation.
As shown in fig. 4-6, in other embodiments, the fire protection subsystem includes a switch KK2 and a reserved interface connected in sequence; the switches MK 1-2 and the lamp are connected in sequence; and the switch KK1 and the air conditioner KT 1-2 are sequentially connected. The bidirectional AC/DC converter is also connected with a switch UK1, the switch UK1 is connected with a UPS, and the interface of the UPS is UP1.
The moving ring subsystem comprises a switch DK1 and a converter FY1 which are sequentially connected, wherein the converter FY1 is connected with ANUE through UE1 and is connected with the TCU through AM1, and a reserved interface is arranged.
The power supply device comprises a switch DK2 and a converter FY2 which are sequentially connected, wherein the converter FY2 is connected with a high-voltage box through a BMS; the temperature sensor and the humidity sensor are connected through WS 1-2; is connected with a smoke sensor through YS 1; is connected with the water sensor through SS 1.
Including parallel sockets CZ1.
ANUE is connected with a fire protection system, a movable ring subsystem and a micro system through 485 interfaces, ANUE is connected with a TCU with 4G through LAN or modbusTCP, and ANUE is also provided with a reserved interface. The TCU is connected with the background through the LAN and is connected with the display screen through the DIV.
ANUE is connected with an anti-countercurrent module through 485, and the anti-countercurrent module is arranged on the grid-connected point main inlet wire. The TCU is connected to the switch through LAN or ModbusTCP, and the switch is connected to YCU of the other EMS modules through LAN or ModbusTCP.
While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.
Claims (7)
1. A distributed energy storage system supporting multiple parallel reserves integration, comprising: the equipment cabinet is internally provided with a microsystem; the micro system is provided with an energy output port, a bidirectional AC/DC converter and an STS static change-over switch are sequentially connected between the micro system and the energy output port, and an emergency load is connected to one side of the STS static change-over switch, which is connected with the bidirectional AC/DC converter; the micro system is connected with an EMS module, and the EMS module is provided with a microprocessor TCU connected with the interaction machine and a ANUE module connected with the micro system.
2. The distributed energy storage system supporting multiple parallel reserves integration according to claim 1, wherein the microsystem comprises a battery pack, wherein the battery pack is internally provided with a primary BMS; the battery pack is connected with a high-voltage switch box, the high-voltage switch box is connected to the bidirectional AC/DC converter, and a secondary BMS is arranged in the high-voltage switch box.
3. A distributed energy storage system supporting multiple parallel reserves integration according to claim 1 or 2, wherein an emergency load switch is arranged between the emergency load and the STS static transfer switch; and a moving ring subsystem is also arranged between the bidirectional AC/DC converter and the STS static change-over switch.
4. The distributed energy storage system supporting multi-parallel storage integration according to claim 1 or 2, wherein a bidirectional electric energy meter and an alternating current main inlet wire switch which are sequentially connected are arranged between the energy output port and the STS static change-over switch, and a surge protector and a lightning protection switch which are sequentially arranged are further connected to one side of the alternating current main inlet wire switch, which is connected with the bidirectional electric energy meter.
5. The distributed energy storage system supporting multiple parallel reserves integration according to claim 3, wherein the moving ring subsystem comprises a state sensor group, the state sensor group is connected with the EMS module, and detects the environmental parameters inside the cabinet; and the state adjusting module is connected with the EMS module and controls the environmental change inside the cabinet.
6. A distributed energy storage system supporting multiple parallel reserves integration according to claim 1 or claim 2, wherein the cabinet comprises a splice housing; the splicing shell is connected with a bottom frame; the bottom frame is provided with a fork truck hole.
7. The distributed energy storage system supporting multiple parallel reserves integration according to claim 5, wherein the EMS module is connected to a switch, and the microprocessor TCU is connected to a display screen and a background; the EMS module is connected with the dynamic ring subsystem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322818403.4U CN221080926U (en) | 2023-10-20 | 2023-10-20 | Distributed energy storage system supporting integration of multiple parallel reserves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322818403.4U CN221080926U (en) | 2023-10-20 | 2023-10-20 | Distributed energy storage system supporting integration of multiple parallel reserves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221080926U true CN221080926U (en) | 2024-06-04 |
Family
ID=91256204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322818403.4U Active CN221080926U (en) | 2023-10-20 | 2023-10-20 | Distributed energy storage system supporting integration of multiple parallel reserves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221080926U (en) |
-
2023
- 2023-10-20 CN CN202322818403.4U patent/CN221080926U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211790784U (en) | Light stores up and fills integration charging station | |
| CN104242338B (en) | A kind of transformer station's micro-grid system containing distributed power source and control method | |
| CN103595136A (en) | Energy management system of micro-grid | |
| CN103117595B (en) | Distributed direct current independent power supply system | |
| CN211405579U (en) | Intelligent standby power system of integrated cabinet | |
| CN111404186A (en) | Distribution transformer dynamic capacity-increasing intelligent energy storage device and control method | |
| CN213521301U (en) | Data center power distribution system | |
| CN210927503U (en) | Photovoltaic power generation and energy storage integrated power supply system | |
| CN115378014A (en) | Intelligent group string type energy storage system and energy storage device thereof | |
| CN203119615U (en) | Distributed direct-current independent power supply system | |
| CN2927458Y (en) | DC-AC power-supply integrated mold set for substation | |
| CN117458570A (en) | Outdoor electric power energy storage system and device | |
| CN221080926U (en) | Distributed energy storage system supporting integration of multiple parallel reserves | |
| CN112713603A (en) | Intelligent power supply equipment on low-voltage side of power grid area | |
| CN202616884U (en) | Intelligent AC (alternating-current) distribution device for communication | |
| CN114629248A (en) | Electrochemical energy storage all-in-one machine applied to micro-grid | |
| CN212572086U (en) | Combined microgrid access system | |
| CN103904776A (en) | Intelligent power distribution room power system | |
| CN211930271U (en) | Intelligent energy storage device for capacity increase of distribution transformer | |
| CN203119617U (en) | Distributed direct-current independent power supply system for transformer substation | |
| CN203119616U (en) | Distributed direct-current power supply subsystem of intelligent substation | |
| CN103117596B (en) | Distributed direct-current power supply system for substation | |
| CN113991665A (en) | Coordination device and method for power supply systems of two low-voltage transformer areas | |
| CN113659699A (en) | Emergency power supply intelligent control method and system for base station | |
| CN113358923A (en) | Intelligent electricity consumption energy measuring system based on energy optimization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |