CN211320636U - Power distribution system of energy storage system and energy storage system - Google Patents
Power distribution system of energy storage system and energy storage system Download PDFInfo
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- CN211320636U CN211320636U CN202020222016.8U CN202020222016U CN211320636U CN 211320636 U CN211320636 U CN 211320636U CN 202020222016 U CN202020222016 U CN 202020222016U CN 211320636 U CN211320636 U CN 211320636U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
An embodiment of the utility model provides an energy storage system's distribution system belongs to the energy storage field. The energy storage system comprises an energy management system, a confluence device and a battery cluster, the power distribution system comprises a secondary power distribution system, and the secondary power distribution system comprises an uninterruptible power supply and a plurality of power modules connected with the uninterruptible power supply; the energy management system, the confluence device and the battery clusters are respectively connected with the output ends of the corresponding power modules in the plurality of power modules in parallel, and the energy management system, the confluence device and the battery clusters are independently powered by the corresponding power modules. The utility model discloses a plurality of power module of secondary distribution system are by the unified distribution of uninterrupted power source UPS, and each equipment all supplies power alone through the power module that corresponds among the energy storage system, reduces the system volume, improves the system integration degree, saves space.
Description
Technical Field
The utility model relates to an energy storage field specifically relates to an energy storage system's distribution system and an energy storage system.
Background
In the existing battery energy storage system, the power distribution cabinet only distributes the power supply of the energy storage system, and the function is single. An Uninterruptible Power Supply (UPS) configured in the battery energy storage System is generally arranged in a cabinet where a bus device, a battery cluster, and an EMS (energy management System) are located, equipment in each cabinet is supplied with Power by matching the UPS and a switching Power supply module, and the UPS and the switching Power supply module form a secondary Power supply System in the energy storage System. Because the confluence device, the EMS and each battery cluster need to be provided with an uninterruptible power supply, a space for arranging the power supply needs to be reserved in each cabinet body, and the space of the cabinet body is wasted; the uninterrupted power system is dispersed in the cabinet body of each device of the energy storage system, the structure is complex, the installation is inconvenient, and the management and the monitoring of daily operation are difficult. If a certain power module breaks down, the whole system is shut down, and stable operation of the system is not facilitated.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an aim at provides an energy storage system's distribution system to improve system integration degree, save space.
In order to achieve the above object, an embodiment of the present invention provides a power distribution system of an energy storage system, where the energy storage system includes an energy management system, a junction device, and a battery cluster, the power distribution system includes a secondary power distribution system, and the secondary power distribution system includes an uninterruptible power supply and a plurality of power modules connected to the uninterruptible power supply; the energy management system, the confluence device and the battery clusters are respectively connected with the output ends of the corresponding power modules in the plurality of power modules in parallel, and the energy management system, the confluence device and the battery clusters are independently powered by the corresponding power modules.
Further, the secondary power distribution system further comprises an intermediate relay, and the intermediate relay is connected with the uninterruptible power supply.
Further, the intermediate relay is connected in parallel with the plurality of power modules.
Furthermore, the uninterruptible power supply and the intermediate relay are integrally arranged in the power distribution cabinet.
Further, integrated uninterrupted power source distribution lines and secondary relay protection control circuit that is provided with in the switch board, it is a plurality of power module passes through uninterrupted power source distribution lines with uninterrupted power source links to each other, auxiliary relay passes through secondary relay protection control circuit with uninterrupted power source links to each other.
Further, the power distribution system further comprises a power monitoring device, and the power monitoring device is integrally installed in the power distribution cabinet.
Further, a communication module is integrated in the power distribution cabinet, and the electric quantity monitoring device uploads electric quantity monitoring information through the communication module.
Further, there are a plurality of battery clusters, and each battery cluster is individually powered by a corresponding power module.
On the other hand, the embodiment of the utility model provides a still provide an energy storage system, including energy storage converter, energy management system, collection flow device, battery cluster and distribution system;
the power distribution system comprises a secondary power distribution system, and the secondary power distribution system comprises an uninterruptible power supply and a plurality of power supply modules connected with the uninterruptible power supply;
the uninterruptible power supply is connected with an alternating current commercial power and the alternating current side of the energy storage converter;
the energy management system, the confluence device and the battery clusters are respectively connected with the output ends of the corresponding power modules in the plurality of power modules in parallel, and the energy management system, the confluence device and the battery clusters are independently powered by the corresponding power modules.
Further, the secondary power distribution system further comprises an intermediate relay, wherein the intermediate relay is connected with the uninterruptible power supply and is connected with the plurality of power modules in parallel.
The utility model provides an energy storage system's secondary distribution system only adopts an uninterrupted power source UPS, and a plurality of power module distribute by uninterrupted power source UPS is unified, and each equipment all supplies power alone through the power module that corresponds among the energy storage system, need not to provide UPS and switching power supply for each equipment, reduces the system volume, improves the system integration degree, saves space. Moreover, a single Uninterruptible Power Supply (UPS) can provide a power curve with higher stability, most of power interruptions (such as sharp waves, distortion and voltage surges) can be eliminated, and the power supply stability of the system is improved. The single UPS power supply is simple in design structure, convenient to install, high in durability and low in operation and maintenance cost, and communication monitoring and line maintenance are easy to achieve.
In addition, uninterrupted power source UPS and intermediate relay are integrated to be set up in the switch board. The intermediate relay is uniformly distributed by the UPS and is centrally arranged on the power distribution cabinet, so that the installation is convenient, the space is saved, and the overhaul is convenient. The coil of the intermediate relay is provided with 220V alternating current by the UPS, and compared with 24V direct current power distribution in the prior art, the intermediate link is reduced, the power supply stability is high, and the anti-electromagnetic interference capability is stronger.
Other features and advantages of embodiments of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention, but do not constitute a limitation of the embodiments of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a power distribution system of an energy storage system according to an embodiment of the present invention.
Fig. 2 is a left side view of a power distribution cabinet of a power distribution system of an energy storage system according to an embodiment of the present invention;
fig. 3 is a right side view of a power distribution cabinet of a power distribution system of an energy storage system according to an embodiment of the present invention;
fig. 4 is a rear view of a power distribution cabinet of a power distribution system of an energy storage system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an energy storage system according to an embodiment of the present invention.
Description of the reference numerals
1 uninterrupted power source distribution line 2 secondary relay protection control circuit
3 energy storage system charge-discharge ammeter 4 energy storage system self-power-consumption ammeter
5 communication module
Detailed Description
The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the description herein is only intended to illustrate and explain embodiments of the present invention, and is not intended to limit embodiments of the present invention.
Example one
This embodiment provides an energy storage system's power distribution system, energy storage system includes energy management system EMS, device and the battery cluster that converges, power distribution system includes secondary power distribution system, secondary power distribution system include uninterrupted power source UPS and with a plurality of power module that uninterrupted power source UPS links to each other. The energy management system, the confluence device and the battery clusters are respectively connected with the output ends of the corresponding power modules in the plurality of power modules in parallel, and the energy management system, the confluence device and the battery clusters are independently powered by the corresponding power modules. The battery cluster is provided with a plurality of batteries, each battery cluster is connected with the corresponding power module, and each battery cluster is independently powered by the corresponding power module. The distribution mode of the secondary distribution system only adopts one uninterrupted power supply UPS, and the plurality of power modules are uniformly distributed by the uninterrupted power supply UPS, so that the size of the energy storage system is reduced. The single UPS can provide a power curve with higher stability, eliminate most of power interruption (such as spike, distortion and voltage surge) and improve the power supply stability of the system. The single large UPS power supply is simple in design structure, convenient to install, high in durability and low in operation and maintenance cost, and communication monitoring and line maintenance are easy to achieve.
Fig. 1 is a schematic structural diagram of a power distribution system of an energy storage system according to an embodiment of the present invention. As shown in fig. 1, the power supply module includes a power supply module PS-1, a power supply module PS-2, a power supply module PS-3 to a power supply module PS-N, an output end of the power supply module PS-1 is connected to the energy management system EMS, and the power supply module PS-1 is installed in an EMS cabinet in which the energy management system EMS is located; the output end of the power supply module PS-2 is connected with the confluence device, and the power supply module PS-2 is arranged in a confluence cabinet where the confluence device is positioned; the output ends of the power supply modules PS-3 to PS-N are sequentially connected with the battery clusters 1 to N-2, and the power supply modules PS-3 to PS-N are respectively arranged in the cabinet body where the corresponding battery clusters are located. Each power module outputs 24V dc to the device connected to its output. The secondary power distribution system further comprises an intermediate relay, the intermediate relay is connected with the UPS, and the intermediate relay is connected with the power modules in parallel. The UPS and the intermediate relay are integrally arranged in the power distribution cabinet. The intermediate relay is uniformly distributed by the UPS and is centrally arranged on the power distribution cabinet, so that the installation is convenient, the space is saved, and the overhaul is convenient.
Fig. 2 to fig. 4 are a left side view, a right side view and a rear view of a power distribution cabinet of a power distribution system of an energy storage system according to an embodiment of the present invention. The integrated uninterrupted power source distribution lines 1 and secondary relay protection control circuit 2 that are provided with in the switch board, it is a plurality of the power module passes through uninterrupted power source distribution lines 1 with uninterrupted power source UPS links to each other, auxiliary relay passes through secondary relay protection control circuit 2 with uninterrupted power source UPS links to each other. As shown in fig. 2, an uninterruptible power supply distribution line 1 is arranged on the left side of a power distribution cabinet; as shown in fig. 3, the secondary relay protection control line 2 is arranged on the right side of the distribution cabinet. The coil of the intermediate relay is provided with 220V alternating current by the UPS, and compared with 24V direct current power distribution in the prior art, the intermediate link is reduced, the power supply stability is high, and the anti-electromagnetic interference capability is stronger. The power distribution system further comprises an electric quantity monitoring device, and the electric quantity monitoring device is integrally installed in the power distribution cabinet. Still the integration is provided with communication module 5 in the switch board, electric quantity monitoring device passes through communication module 5 uploads electric quantity monitoring information. The structural layout of switch board makes full use of the cabinet inner space and with different function partitions, improves the integrated level of energy storage system switch board to reduce mutual interference in the switch board. As shown in fig. 4, the electric quantity monitoring device comprises an energy storage system charging and discharging ammeter 3 and an energy storage system self-power consumption ammeter 4, the energy storage system charging and discharging ammeter 3 and the energy storage system self-power consumption ammeter 4 are communicated with an external monitoring system through an RS485 communication module 5, and the electric quantity monitoring information is uploaded. The condition of the energy storage system running self-power utilization can be accurately obtained through the energy storage system self-power utilization ammeter 4, and the electric energy quality and the electric quantity condition of the energy storage system charging and discharging and the energy storage system income condition are obtained through the energy storage system charging and discharging ammeter 3.
Example two
Fig. 5 is a schematic structural diagram of an energy storage system according to an embodiment of the present invention. As shown in fig. 5, the present embodiment provides an Energy storage System, which includes a Power Conversion System (PCS), an Energy Management System (EMS), a bus device, a battery cluster, and a Power distribution System. The power distribution system comprises a secondary power distribution system, wherein the secondary power distribution system comprises an Uninterruptible Power Supply (UPS) and a plurality of power supply modules connected with the UPS; the uninterruptible power supply is connected with an alternating current commercial power and an alternating current side of the energy storage converter PCS; the energy management system EMS, the converging device and the battery cluster are respectively connected with the output ends of the corresponding power modules in the power modules in parallel, and the energy management system EMS, the converging device and the battery cluster are independently powered through the corresponding power modules. The battery cluster is multiple, and each battery cluster is independently powered by a corresponding power module.
In the embodiment, the power supply module comprises a power supply module PS-1, a power supply module PS-2, a power supply module PS-3 to a power supply module PS-N, the output end of the power supply module PS-1 is connected with the energy management system EMS, and the power supply module PS-1 is arranged in an EMS cabinet where the energy management system EMS is located; the output end of the power supply module PS-2 is connected with the confluence device, and the power supply module PS-2 is arranged in a confluence cabinet where the confluence device is positioned; the output ends of the power supply modules PS-3 to PS-N are sequentially connected with the battery clusters 1 to N-2, and the power supply modules PS-3 to PS-N are respectively arranged in the cabinet body where the corresponding battery clusters are located. Each power module outputs 24V dc to the device connected to its output. Uninterrupted power source UPS and a plurality of power module in energy storage system's the secondary distribution system that this embodiment provided arrange independently, and a plurality of power modules distribute by uninterrupted power source UPS is unified, and electric simple structure is convenient for overhaul.
In this embodiment, the secondary power distribution system further includes an intermediate relay, and the intermediate relay is connected to the uninterruptible power supply and connected to the plurality of power modules in parallel. The intermediate relay is uniformly distributed by an Uninterruptible Power Supply (UPS), the power supply is 220V alternating current, the anti-interference capability is strong, and the communication stability is better. The secondary power distribution system can supply power uninterruptedly, black start of the system is realized when the alternating current mains supply is powered off, and the running reliability of the energy storage system is greatly improved.
The above describes in detail optional implementation manners of embodiments of the present invention with reference to the accompanying drawings, however, the embodiments of the present invention are not limited to the details in the above implementation manners, and in the technical concept scope of the embodiments of the present invention, it is possible to perform various simple modifications on the technical solutions of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.
In addition, various different implementation manners of the embodiments of the present invention can be combined arbitrarily, and as long as it does not violate the idea of the embodiments of the present invention, it should be considered as the disclosure of the embodiments of the present invention.
Claims (10)
1. A power distribution system of an energy storage system comprises an energy management system, a confluence device and a battery cluster, and is characterized in that the power distribution system comprises a secondary power distribution system, and the secondary power distribution system comprises an uninterruptible power supply and a plurality of power modules connected with the uninterruptible power supply;
the energy management system, the confluence device and the battery clusters are respectively connected with the output ends of the corresponding power modules in the plurality of power modules in parallel, and the energy management system, the confluence device and the battery clusters are independently powered by the corresponding power modules.
2. The power distribution system of the energy storage system of claim 1, wherein the secondary power distribution system further comprises an intermediate relay, the intermediate relay being connected to the uninterruptible power supply.
3. The power distribution system of the energy storage system of claim 2, wherein the intermediate relay is connected in parallel with a plurality of the power modules.
4. The power distribution system of the energy storage system of claim 2, wherein the uninterruptible power supply and the intermediate relay are integrally disposed in a power distribution cabinet.
5. The power distribution system of the energy storage system according to claim 4, wherein an uninterruptible power supply distribution line and a secondary relay protection control line are integrated in the power distribution cabinet, the plurality of power modules are connected to the uninterruptible power supply through the uninterruptible power supply distribution line, and the intermediate relay is connected to the uninterruptible power supply through the secondary relay protection control line.
6. The power distribution system of the energy storage system of claim 5, further comprising a power monitoring device integrally installed in the power distribution cabinet.
7. The power distribution system of the energy storage system according to claim 6, wherein a communication module is integrated in the power distribution cabinet, and the power monitoring device uploads power monitoring information through the communication module.
8. The power distribution system of the energy storage system of claim 1, wherein there are a plurality of the battery clusters, each of the battery clusters being individually powered by a corresponding power module.
9. An energy storage system is characterized by comprising an energy storage converter, an energy management system, a confluence device, a battery cluster and a power distribution system;
the power distribution system comprises a secondary power distribution system, and the secondary power distribution system comprises an uninterruptible power supply and a plurality of power supply modules connected with the uninterruptible power supply;
the uninterruptible power supply is connected with an alternating current commercial power and the alternating current side of the energy storage converter;
the energy management system, the confluence device and the battery clusters are respectively connected with the output ends of the corresponding power modules in the plurality of power modules in parallel, and the energy management system, the confluence device and the battery clusters are independently powered by the corresponding power modules.
10. The energy storage system of claim 9, wherein the secondary power distribution system further comprises an intermediate relay coupled to the uninterruptible power supply and coupled in parallel with the plurality of power modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020222016.8U CN211320636U (en) | 2020-02-20 | 2020-02-20 | Power distribution system of energy storage system and energy storage system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020222016.8U CN211320636U (en) | 2020-02-20 | 2020-02-20 | Power distribution system of energy storage system and energy storage system |
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| CN211320636U true CN211320636U (en) | 2020-08-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113765226A (en) * | 2021-09-14 | 2021-12-07 | 北京泓慧国际能源技术发展有限公司 | Monitoring system and method for flywheel energy storage uninterruptible power supply |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113765226A (en) * | 2021-09-14 | 2021-12-07 | 北京泓慧国际能源技术发展有限公司 | Monitoring system and method for flywheel energy storage uninterruptible power supply |
| CN113765226B (en) * | 2021-09-14 | 2024-04-09 | 北京泓慧国际能源技术发展有限公司 | Monitoring system and method for flywheel energy storage uninterruptible power supply |
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