CN212162855U - High-voltage distribution box for energy storage system - Google Patents
High-voltage distribution box for energy storage system Download PDFInfo
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- CN212162855U CN212162855U CN202020852145.5U CN202020852145U CN212162855U CN 212162855 U CN212162855 U CN 212162855U CN 202020852145 U CN202020852145 U CN 202020852145U CN 212162855 U CN212162855 U CN 212162855U
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- energy storage
- battery pack
- distribution box
- voltage distribution
- storage converter
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- 238000004146 energy storage Methods 0.000 title claims abstract description 68
- 230000005611 electricity Effects 0.000 claims abstract description 5
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims abstract 5
- 238000000034 method Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a high-voltage distribution box for an energy storage system, which comprises a battery pack connector, an energy storage converter connector, a BMS main control module and a DCDC module, wherein the battery pack connector is used for connecting a battery pack of the energy storage system; the energy storage converter connector is used for connecting the energy storage converter; the DCDC module is used for taking electricity from the battery pack to provide low-voltage power supply for the BMS main control module; the BMS main control module is communicated with the battery pack and the energy storage converter to acquire state information of the battery pack and/or the energy storage converter so as to control the work of elements in the energy storage converter and the high-voltage distribution box according to the state information. The utility model provides a shortcoming such as with high costs, compatible poor at high voltage distribution box.
Description
Technical Field
The utility model relates to a high voltage distribution field and electrochemistry energy storage field specifically are small-size commercial energy storage system high voltage distributor box.
Background
In recent years, the application of energy storage technology is rapidly developed, the application of household energy storage, commercial energy storage and power grid side energy storage in a power system is very wide, the application of the energy storage technology is favorable for improving the load factor of the power grid and improving the economy of the power grid, so that national power resources are optimally configured, a commercial energy storage system high-voltage distribution box is mainly designed and provided by a battery manufacturer, an energy storage system manufacturer and a battery management system manufacturer, each manufacturer adopts different design schemes, the configuration difference of high-voltage boxes of different design schemes is very large, and the defects of high cost, poor compatibility and the like of the high-voltage distribution box are caused.
Disclosure of Invention
Technical problem to be solved
For solving the above problem, the utility model provides a be used for small-size energy storage battery system universalization high voltage distribution box has increased the status indicator lamp and has been used for display system running state, increase the DCDC module and be used for energy storage system low pressure power supply.
(II) technical scheme
In order to achieve the purpose of the utility model, the utility model provides a technical scheme as follows: a high-voltage distribution box for an energy storage system comprises a battery pack connector, an energy storage converter connector, a BMS (battery management system) main control module and a DCDC (direct current DC) module, wherein the battery pack connector is used for connecting a battery pack of the energy storage system; the energy storage converter connector is used for connecting the energy storage converter; the DCDC module is used for taking electricity from the battery pack to provide low-voltage power supply for the BMS main control module; the BMS main control module is communicated with the battery pack and the energy storage converter to acquire state information of the battery pack and/or the energy storage converter so as to control the work of elements in the energy storage converter and the high-voltage distribution box according to the state information.
According to the utility model discloses a preferred embodiment, the group battery positive pole connects to through fuse, anodal contactor and pre-charge circuit, direct current breaker the energy storage converter is anodal, anodal contactor and pre-charge circuit are parallelly connected.
According to the preferred embodiment of the present invention, the battery negative pole is connected to the energy storage converter negative pole through shunt, dc breaker.
According to a preferred embodiment of the present invention, the input of the DCDC module comprises a manual switch, which is connected to the battery pack.
According to the preferred embodiment of the present invention, the pre-charging circuit includes a pre-charging contactor and a pre-charging resistor, the pre-charging contactor is connected in series with the pre-charging resistor.
According to the preferred embodiment of the present invention, the BMS host control module is further configured to control the pre-charging contactor and the positive contactor.
According to the utility model discloses a preferred embodiment, BMS host system is used for controlling the preliminary filling contactor to close in order to give the energy storage converter preliminary charging to, after the preliminary filling is accomplished, be used for control the positive contactor is closed and the preliminary filling circuit disconnection.
According to the utility model discloses a preferred embodiment, BMS master control mould still is connected with status indicator, and it is used for instructing energy storage converter's operating condition.
According to the utility model discloses a preferred embodiment, when BMS host system acquireed the state information of group battery or energy storage converter shows that there is the trouble, its control energy storage converter stop work.
According to the utility model discloses a preferred embodiment, when high tension switchgear needs emergency power off, can be through the disconnection manual switch realizes the outage operation.
(III) advantageous effects
Based on the technical scheme, compared with the prior art, the utility model, have the characteristics of highly integrated, universalization, and be applicable to different parameter energy storage system group battery.
Drawings
Fig. 1 is the utility model discloses an electrical schematic diagram of high voltage distribution box for energy storage system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
The utility model generally provides a high-voltage distribution box for an energy storage system, which comprises a battery pack connector, an energy storage converter connector, a BMS main control module and a DCDC module, wherein the battery pack connector is used for connecting a battery pack of the energy storage system; the energy storage converter connector is used for connecting the energy storage converter; the BMS main control module is used for collecting data of each battery cell in the battery pack of the energy storage system, analyzing and detecting the insulation performance of a direct current bus of the battery pack; the DCDC module is used for taking electricity from the battery pack to provide low-voltage power supply for the BMS main control module; the BMS main control module is communicated with the battery pack and the energy storage converter to acquire state information of the battery pack and/or the energy storage converter so as to control the work of elements in the energy storage converter and the high-voltage distribution box according to the state information.
The input terminal of the DCDC module may include a manual switch connected to the battery pack, and the power-off operation may be performed by disconnecting the manual switch when the emergency power-off of the hv power distribution box is required.
The BMS main control module is also used for controlling the pre-charging contactor and the anode contactor. The BMS main control module is used for controlling the closing of the pre-charging contactor so as to pre-charge the energy storage converter, and is used for controlling the closing of the anode contactor and the disconnection of the pre-charging circuit after the pre-charging is finished.
And when the state information of the battery pack or the energy storage converter acquired by the BMS main control module shows that the fault exists, the BMS main control module controls the energy storage converter to stop working.
Fig. 1 is the utility model discloses a high tension switchgear's for energy storage system electrical schematic diagram.
As shown in fig. 1, a high voltage distribution box is arranged in a dotted line frame, the positive electrode and the negative electrode of the battery pack are connected to the high voltage distribution box through high voltage connectors, the positive electrode of the battery pack is connected to the positive electrode of an energy storage converter (PCS) through a fuse, a positive contactor and a pre-charging circuit and finally output through a direct current breaker, the negative electrode of the battery pack is connected to the negative electrode of the energy storage converter through a shunt and the direct current breaker, the shunt is used for measuring the current of a direct current loop, and the input end of a DCDC module (switching power.
In the specific embodiment, the whole system working process comprises the following steps of firstly closing the direct current breaker, then closing the DCDC manual switch, outputting a low-voltage 24V power supply to supply power to the BMS main control module after the DCDC normally works, establishing communication with the battery pack and the PCS after the BMS main control module is electrified, feeding back no-fault information by the battery pack and the PCS, the BMS main control module closes the pre-charging contactor to start pre-charging the PCS, closes the anode contactor after the pre-charging is finished, then the pre-charging contactor is disconnected, the status indicator lamp is lightened to be green at the same time, the system starts to operate normally, when the fault state occurs, the BMS main control module requires the PCS to stop working through a communication mode, then the positive contactor is disconnected, the state indicator lamp is lightened to be red, the system is in a fault state, and when emergency power-off is needed in case of emergency, an operator can disconnect the manual switch through the DCDC to achieve power-off operation.
It is thus clear that the utility model discloses main modules such as high voltage distribution, power management system (BMS) host system, DCDC module have been integrateed. Just the utility model discloses dispose the fuse, anodal contactor and pre-charge resistance, direct current breaker, the fuse adopts direct current fast acting fuse to break off direct current return circuit and then protection battery and load device when guaranteeing short-circuit fault, anodal contactor is as the normal upper and lower electricity and the fault condition undervoltage of controllable switch by BMS main control module control realization system, pre-charge circuit is charging for equipment electric capacity at last electric in-process and is avoiding anodal contactor closed emergence arc discharge phenomenon under the no pre-charge state, direct current breaker designs into the person and increases artificial steerable measure for control circuit breaker. The utility model discloses have highly integrated, universalization, be applicable to different parameter energy storage system group batteries.
The utility model discloses still increased the status indicator and be used for display system running state, increased the DCDC module and be used for energy storage system low pressure power supply, increased the usability and the convenience of block terminal.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A high-voltage distribution box for an energy storage system comprises a battery pack connector, an energy storage converter connector, a BMS main control module and a DCDC module, wherein,
the battery pack connector is used for connecting a battery pack of an energy storage system;
the energy storage converter connector is used for connecting the energy storage converter;
the method is characterized in that:
the DCDC module is used for taking electricity from the battery pack to provide low-voltage power supply for the BMS main control module;
the BMS main control module is communicated with the battery pack and the energy storage converter to acquire state information of the battery pack and/or the energy storage converter so as to control the work of elements in the energy storage converter and the high-voltage distribution box according to the state information.
2. The high voltage distribution box of claim 1, wherein: the positive pole of the battery pack is connected to the positive pole of the energy storage converter through a fuse, a positive contactor, a pre-charging circuit and a direct current breaker, and the positive contactor is connected with the pre-charging circuit in parallel.
3. The high voltage distribution box of claim 2, wherein: and the negative electrode of the battery pack is connected to the negative electrode of the energy storage converter through a shunt and a direct current breaker.
4. The high voltage distribution box of claim 3, wherein: the input of the DCDC module includes a manual switch that is coupled to the battery pack.
5. The high voltage distribution box of claim 2, wherein: the pre-charging circuit comprises a pre-charging contactor and a pre-charging resistor, wherein the pre-charging contactor is connected with the pre-charging resistor in series.
6. The high voltage distribution box of claim 5, wherein: the BMS main control module is also used for controlling the pre-charging contactor and the anode contactor.
7. The high voltage distribution box of claim 6, wherein: the BMS main control module is used for controlling the closing of the pre-charging contactor so as to pre-charge the energy storage converter, and is used for controlling the closing of the anode contactor and the disconnection of the pre-charging circuit after the pre-charging is finished.
8. The high voltage distribution box of claim 6, wherein: the BMS master control module is also connected with a state indicator lamp which is used for indicating the working state of the energy storage converter.
9. The high voltage distribution box of claim 6, wherein: and when the state information of the battery pack or the energy storage converter acquired by the BMS main control module shows that the fault exists, the BMS main control module controls the energy storage converter to stop working.
10. The high voltage distribution box of claim 4, wherein: when the high-voltage distribution box needs emergency power-off, the power-off operation can be realized by disconnecting the manual switch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020228947 | 2020-02-29 | ||
| CN2020202289479 | 2020-02-29 |
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| Publication Number | Publication Date |
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| CN212162855U true CN212162855U (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020852145.5U Active CN212162855U (en) | 2020-02-29 | 2020-05-20 | High-voltage distribution box for energy storage system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622625A (en) * | 2020-12-28 | 2021-04-09 | 华人运通(江苏)技术有限公司 | Safety management system and method for high-voltage distribution box |
| CN113890138A (en) * | 2021-09-26 | 2022-01-04 | 北京百度网讯科技有限公司 | High-voltage box of battery system, control method and device thereof, electronic equipment and medium |
| CN116097540A (en) * | 2021-01-29 | 2023-05-09 | 宁德时代新能源科技股份有限公司 | Energy storage equipment and system and power system |
-
2020
- 2020-05-20 CN CN202020852145.5U patent/CN212162855U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622625A (en) * | 2020-12-28 | 2021-04-09 | 华人运通(江苏)技术有限公司 | Safety management system and method for high-voltage distribution box |
| CN116097540A (en) * | 2021-01-29 | 2023-05-09 | 宁德时代新能源科技股份有限公司 | Energy storage equipment and system and power system |
| CN113890138A (en) * | 2021-09-26 | 2022-01-04 | 北京百度网讯科技有限公司 | High-voltage box of battery system, control method and device thereof, electronic equipment and medium |
| CN113890138B (en) * | 2021-09-26 | 2022-11-04 | 北京百度网讯科技有限公司 | High voltage box of battery system and its control method, device, electronic equipment and medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High voltage distribution box for energy storage system Effective date of registration: 20210803 Granted publication date: 20201215 Pledgee: Qingdao Rural Commercial Bank Co.,Ltd. Shanghai Cooperation Demonstration Zone sub branch Pledgor: Qingdao Nengfeng Electric Co.,Ltd. Registration number: Y2021370010060 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220323 Granted publication date: 20201215 Pledgee: Qingdao Rural Commercial Bank Co.,Ltd. Shanghai Cooperation Demonstration Zone sub branch Pledgor: Qingdao Nengfeng Electric Co.,Ltd. Registration number: Y2021370010060 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High voltage distribution box for energy storage system Effective date of registration: 20220329 Granted publication date: 20201215 Pledgee: Qingdao Jiaozhou Shengyu Financing Guarantee Co.,Ltd. Pledgor: Qingdao Nengfeng Electric Co.,Ltd. Registration number: Y2022980003473 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20201215 Pledgee: Qingdao Jiaozhou Shengyu Financing Guarantee Co.,Ltd. Pledgor: Qingdao Nengfeng Electric Co.,Ltd. Registration number: Y2022980003473 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |