CN213093888U - High-performance plug-and-play micro-grid energy storage system - Google Patents
High-performance plug-and-play micro-grid energy storage system Download PDFInfo
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- CN213093888U CN213093888U CN202021218756.0U CN202021218756U CN213093888U CN 213093888 U CN213093888 U CN 213093888U CN 202021218756 U CN202021218756 U CN 202021218756U CN 213093888 U CN213093888 U CN 213093888U
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Abstract
The utility model provides a high-performance plug-and-play micro-grid energy storage system, which comprises a control cabinet, a battery module, a battery management system BMS, a communication manager, an energy storage converter PCS and an energy management system EMS; install battery module, battery management system BMS, communication supervisor, energy storage converter PCS and energy management system EMS in the switch board, the battery module is provided with the multiunit, and the power output input of multiunit battery module is connected to the transmission and the break-make that battery management system BMS realized the electric energy through master switch. The utility model installs the battery management system BMS, PCS, EMS and the like in a control cabinet, the system satisfies the plug and play of the battery module, the system supports the multi-machine AC parallel connection use, the phenomenon of DC circulation when in parallel connection is avoided, and the service life of the battery is greatly prolonged; the system can be operated in a grid-connected mode after being connected with an alternating current power line, construction cost and labor cost are reduced, and the energy storage system can meet market requirements better.
Description
Technical Field
The utility model relates to an energy storage system field especially relates to a little electric wire netting energy storage system of plug-and-play type of high performance.
Background
The prior art is a low-power all-in-one machine or a large energy storage system with a PCS and a battery separated, and the low-power all-in-one machine is not suitable for being used in parallel and has high cost; the large system has large size, inconvenient construction and installation and long construction period, and can not meet the market demand of plug and play.
Published chinese utility model patent, application No. CN201510553820.8, patent name: an energy storage battery cabinet, application date: 2015-09-02, the utility model relates to an energy storage battery cabinet for placing battery box for install battery box, it contains: the battery racks are combined from the side, and each battery rack adopts a multilayer and multi-row battery box arrangement mode; each battery rack is respectively in a 5-layer and 2-row battery box arrangement mode, and the battery racks are in a frame structure without door plates. The advantages are that: it is rational in infrastructure, can solve the fixed problem of battery box in the long-distance transport process, solve the poor problem of battery box heat dissipation in the use simultaneously, effectively prolong the life of battery box, guarantee the reliability and the security of its work.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a high-performance plug-and-play type microgrid energy storage system, which comprises a control cabinet 1, a battery module 2, a battery management system BMS3, a communication manager, an energy storage converter PCS4 and an energy management system EMS 5;
the control cabinet 1 is internally provided with a battery module 2, a battery management system BMS3, a communication manager, an energy storage converter PCS4 and an energy management system EMS5, the battery module 2 is provided with a plurality of groups, and the power output and input ends of the plurality of groups of battery modules 2 are connected to the battery management system BMS3 through a master switch to realize the transmission and the on-off of electric energy;
the communication manager is respectively connected and interacted with a battery management system BMS3, an energy storage converter PCS4 and an energy management system EMS 5;
the energy storage converter PCS4 collects charging and discharging data of a battery management system BMS3 in real time, and the output end of the energy storage converter PCS4 is electrically connected to a user;
the battery management system BMS3 and the energy storage converter PCS4 are respectively communicated with an energy management system EMS 5.
Preferably, the battery module 2 is formed by welding a plurality of laminated lithium iron phosphate batteries in a busbar manner.
Preferably, the battery modules 2 and the battery management system BMS3 are connected in series by cell module connecting members.
Preferably, a thermal management system and an environment monitoring system are connected in parallel to the battery management system BMS3 in the control cabinet 1, and the thermal management system and the environment monitoring system interact with the energy storage converter PCS4 in data.
Preferably, the battery management system BMS3 communicates with an external microgrid group control center.
Preferably, the battery cell connecting pieces in the control cabinet 1 all adopt copper bars or aluminum bars, and the shell of the control cabinet 1 is made of carbon steel, aluminum or plastic.
Preferably, the AC output port of the energy storage system is connected in parallel.
The utility model has the advantages that: the utility model installs the battery management system BMS3, PCS, EMS and the like in a control cabinet, the system satisfies the plug and play of the battery module, the system supports the parallel use of multi-machine AC, avoids the phenomenon of DC circulation when in parallel connection, and greatly prolongs the service life of the battery; the system can be operated in a grid-connected mode after being connected with an alternating current power line, construction cost and labor cost are reduced, and the energy storage system can meet market requirements better.
Drawings
FIG. 1 is a block flow diagram of the present invention;
FIG. 2 is a block diagram of the present invention;
in the figure, the position of the upper end of the main shaft,
1. a control cabinet; 2. a battery module; 3. a battery management system BMS; 4. an energy storage converter PCS; 5. energy management system EMS.
Detailed Description
In order to make the technical solution of the present invention better understood and make the above features, objects and advantages of the present invention more comprehensible, the present invention is described in further detail with reference to the accompanying drawings. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention.
As shown in fig. 1-2, the present invention comprises: the system comprises a control cabinet 1, a battery module 2, a battery management system BMS3, a communication manager, an energy storage converter PCS4 and an energy management system EMS 5;
the control cabinet 1 is internally provided with a battery module 2, a battery management system BMS3, a communication manager, an energy storage converter PCS4 and an energy management system EMS5, the battery module 2 is provided with a plurality of groups, and the power output and input ends of the plurality of groups of battery modules 2 are connected to the battery management system BMS3 through a master switch to realize the transmission and the on-off of electric energy;
the communication manager is connected with a battery management system BMS3 through ES485 or Ethernet, connected with an energy storage converter PCS4 through RS485 or Ethernet and connected with an energy management system EMS5 through Ethernet;
the energy storage converter PCS4 collects charging and discharging data of a battery management system BMS3 in real time, and the output end of the energy storage converter PCS4 is electrically connected to a user;
the battery management system BMS3 and the energy storage converter PCS4 are respectively communicated with an energy management system EMS 5.
When the system is used, the battery management system BMS3, the PCS, the EMS and the like are installed in a control cabinet in a centralized manner, the system meets the requirement of plug and play of battery modules, the system supports multi-machine alternating current parallel connection, the phenomenon of direct current circulation generated in parallel connection is avoided, and the service life of the battery is greatly prolonged; the system can be operated in a grid-connected mode after being connected with an alternating current power line, construction cost and labor cost are reduced, and the energy storage system can meet market requirements better.
In this embodiment, the battery module 2 is preferably formed by welding a plurality of lithium iron phosphate battery laminated busbars.
In this embodiment, it is preferable that the plurality of battery modules 2 and the battery module 2 and the battery management system BMS3 are connected in series by cell module connectors.
By adopting the structure, each battery module 2 in the system can be directly disassembled, and when a certain battery in the system has a problem, the battery module 2 with the problem can be directly taken out, so that the normal operation of the system cannot be influenced; after the battery is replaced, the battery module 2 is inserted into the system, and the system operates normally.
In this embodiment, a thermal management system and an environmental monitoring system are preferably connected in parallel to the battery management system BMS3 in the control cabinet 1, and interact with the energy storage converter PCS4 in data manner.
With the structure, the standard control cabinet has the external dimension of L1000mm XD 800mm XH 2200mm, is provided with an independent thermal management system and an independent environment monitoring system, monitors and manages the temperature of the battery in the cabinet, exchanges energy with an external power grid through the energy storage converter in the cabinet, and releases the energy stored in the battery to the external power grid or stores the generated energy of the external power grid into the battery.
In this embodiment, the battery management system BMS3 is preferably in communication with an external microgrid control center.
By means of the structure, the EMS in the cabinet is communicated with the external micro-grid group control center, and coordination work of all sub-micro-grids in the group is achieved.
In this implementation, preferably, the battery cell connecting pieces in the control cabinet 1 all adopt copper bars or aluminum bars, and the shell material of the control cabinet 1 adopts carbon steel, aluminum or plastic.
By the aid of the structure, the control cabinet is designed to be enhanced outdoors, full-load transportation of a charged battery can be met, the on-site debugging time and cost of the system are effectively reduced, and meanwhile, installation without site limitation can be achieved.
In this embodiment, it is preferable that the ac output of the energy storage system is connected in parallel.
By the adoption of the structure, the parallel use of a plurality of systems is met, the direct alternating current output port can be connected with a line in parallel to be connected with the grid, the capacity of the energy storage system can meet the use requirement, and other auxiliary equipment does not need to be additionally arranged.
The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.
Claims (7)
1. A high-performance plug-and-play micro-grid energy storage system is characterized by comprising a control cabinet (1), a battery module (2), a battery management system BMS (3), a communication manager, an energy storage converter PCS (4) and an energy management system EMS (5);
the control cabinet (1) is internally provided with a battery module (2), a battery management system BMS (3), a communication manager, an energy storage converter PCS (4) and an energy management system EMS (5), wherein the battery module (2) is provided with a plurality of groups, and the power output and input ends of the plurality of groups of battery modules (2) are connected to the battery management system BMS (3) through a master switch to realize the transmission and the on-off of electric energy;
the communication manager is respectively connected and interacted with a battery management system BMS (3), an energy storage converter PCS (4) and an energy management system EMS (5);
the energy storage converter PCS (4) collects charging and discharging data of the battery management system BMS (3) in real time, and the output end of the energy storage converter PCS (4) is electrically connected to a user;
and the battery management system BMS (3) and the energy storage converter PCS (4) are respectively communicated with the energy management system EMS (5).
2. The high performance plug and play microgrid energy storage system of claim 1, wherein: the battery module (2) is formed by welding a plurality of laminated lithium iron phosphate batteries in a bus bar mode.
3. The high performance plug and play microgrid energy storage system of claim 2, wherein: a plurality of between battery module (2), all through electric core module connecting piece series connection between battery module (2) and battery management system BMS (3).
4. The high performance plug and play microgrid energy storage system of claim 3, wherein: and a battery management system BMS (3) in the control cabinet (1) is connected with a heat management system and an environment monitoring system in parallel, and the heat management system and the environment monitoring system are in data interaction with the energy storage converter PCS (4).
5. The high performance plug and play microgrid energy storage system of claim 4, wherein: and the battery management system BMS (3) is communicated with an external micro-grid group control center.
6. The high performance plug and play microgrid energy storage system of claim 5, wherein: the battery core connecting pieces in the control cabinet (1) are all copper bars or aluminum bars, and the shell of the control cabinet (1) is made of carbon steel or aluminum or plastic.
7. The high performance plug and play microgrid energy storage system of claim 6, wherein: and an alternating current output port of the energy storage system adopts a parallel connection line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021218756.0U CN213093888U (en) | 2020-12-31 | 2020-12-31 | High-performance plug-and-play micro-grid energy storage system |
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| CN202021218756.0U CN213093888U (en) | 2020-12-31 | 2020-12-31 | High-performance plug-and-play micro-grid energy storage system |
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| CN213093888U true CN213093888U (en) | 2021-04-30 |
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