CN211296275U - Energy storage system capable of automatically removing faults - Google Patents

Energy storage system capable of automatically removing faults Download PDF

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Publication number
CN211296275U
CN211296275U CN202020198397.0U CN202020198397U CN211296275U CN 211296275 U CN211296275 U CN 211296275U CN 202020198397 U CN202020198397 U CN 202020198397U CN 211296275 U CN211296275 U CN 211296275U
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China
Prior art keywords
battery pack
battery
relay
electrode
energy storage
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CN202020198397.0U
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Chinese (zh)
Inventor
李竞妍
刘超
汤帅
张艳萍
李建强
张力伟
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Dongfang Xuneng Shandong Technology Development Co Ltd
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Dongfang Xuneng Shandong Technology Development Co Ltd
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Abstract

The utility model discloses an energy storage system capable of automatically eliminating faults, which comprises a plurality of battery pack modules and a battery management system, wherein each battery pack module comprises a battery pack, a sensor, a bridging jumper and a relay, one end of a normally closed contact of the relay is used as a first electrode connecting terminal of the battery pack module, and the other end of the normally closed contact is electrically connected with a first electrode of the battery pack; one end of a normally open contact of the relay is electrically connected with a first electrode of the battery pack module, the other end of the normally open contact of the relay is electrically connected with one end of a jumper wire, and the other end of the jumper wire is electrically connected with a second electrode of the battery pack; the battery pack management system collects the health state of the battery pack through the sensor and controls the on-off of the relay. Therefore, the utility model discloses an energy storage system of self-discharging trouble leads to can in time keep apart the group battery that breaks down, adjusts the charge-discharge efficiency of battery cluster in real time, has improved whole energy storage system's work efficiency.

Description

Energy storage system capable of automatically removing faults
Technical Field
The utility model relates to an energy storage field especially relates to an energy storage system of self-discharging trouble.
Background
The energy storage battery system is formed by combining a battery management system and a plurality of battery packs in series.
In order to achieve a certain voltage, the energy storage battery system must be solved by connecting a plurality of battery modules in series. In order to ensure the safety of the whole system, after a traditional battery management system collects a certain battery fault, an alarm prompt is given, the whole battery cluster stops working, then a worker replaces and overhauls the battery, the whole battery cluster can be reused only after the certain battery is damaged and needs to be maintained, and after a battery pack is simply removed or skipped, a charging and discharging loop of the whole battery is disconnected, so that the whole system is complete; the parameter power supply parameter changes, so that the whole system cannot normally operate.
Although the safety of the system is protected to the greatest extent by the measures, the attendance rate of the energy storage battery is greatly reduced, and the maintenance cost and time of the energy storage system are increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: an energy storage system that self-eliminates faults is provided.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
an energy storage system capable of self-eliminating faults comprises a plurality of battery pack modules and a battery management system, wherein each battery pack module comprises a battery pack, a sensor for detecting the health state of the battery pack, a jumper wire and a relay, one end of a normally closed contact of the relay is used as a first electrode wiring terminal of the battery pack module, and the other end of the normally closed contact of the relay is electrically connected with a first electrode of the battery pack; one end of a normally open contact of the relay is electrically connected with a first electrode of the battery pack module, the other end of the normally open contact of the relay is electrically connected with one end of a jumper wire, the other end of the jumper wire is electrically connected with a second electrode of the battery pack, and the second electrode of the battery pack is used as a second electrode of the battery pack module;
the battery pack management system collects the health state of the battery pack through the sensor and controls the on-off of the relay;
the bridging jumper is used for crossing the battery pack of the battery pack module where the bridging jumper is located when the battery pack has a fault, and connecting the front-stage battery pack module and the rear-stage battery pack module in series.
Compared with the prior art, the utility model discloses following technological effect has:
the battery management system can timely isolate the battery pack with faults by controlling the opening and closing of the relay according to the health state of the battery pack, adjust the charge-discharge efficiency of the battery cluster in real time, balance the voltage and the electric quantity of the battery cluster, avoid the need of stopping the whole system when a single battery pack has faults, and improve the working efficiency of the whole energy storage system.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Preferably, the relay is a single-pole double-throw relay, and one end of the normally closed contact, which serves as a first electrode of the battery pack module, is also one end of the normally open contact, which is electrically connected with the first electrode of the battery module.
The beneficial effect of adopting above-mentioned further scheme is that adopts single-pole double-throw relay, and the break-make only needs one step of operation, and the process is simple, and the operating efficiency is high.
Preferably, after the battery module fails or is damaged, the battery management system timely adjusts the external output voltage and power of the energy storage system according to the number and the health state of the battery packs which normally work at present.
The beneficial effect of adopting above-mentioned further scheme is that can adjust external output voltage and power in real time, ensures the holistic rate of attendance of group battery and ensures the health status of surplus battery work.
Drawings
Fig. 1 is a schematic structural diagram of an energy storage system with self-fault elimination according to the present invention;
in the drawings, the parts names represented by the respective reference numerals are listed as follows:
1. a first battery pack; 1-1, a first sensor; 1-2, a first crossover line; 1-3, a first single-pole double-throw relay; 18. an eighteenth battery pack; 18-1, an eighteenth sensor; 18-2, eighteenth jumper line; 18-3, eighteenth single-pole double-throw relay.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Fig. 1 is a schematic structural diagram of an energy storage system with self-fault elimination according to the present invention. The energy storage system with the faults automatically eliminated comprises 18 battery modules and a battery management system, wherein the 18 battery modules are respectively No. 1 battery module to No. 18 battery module, each battery module respectively comprises a battery pack, a sensor for detecting the health state of the battery pack, a jumper wire and a relay, the battery modules are connected in series to form a battery cluster, the sensor is electrically connected with the battery management system, and the battery management system acquires the health state of the battery pack through the sensor and controls the on-off of the relay;
the bridging jumper is used for crossing the battery pack of the battery pack module where the bridging jumper is located when the battery pack has a fault, and connecting the front-stage battery pack module and the rear-stage battery pack module in series.
Preferably, the relay is a single-pole double-throw relay, and one end of the normally closed contact, which serves as a first electrode of the battery pack module, is also one end of the normally open contact, which is electrically connected with the first electrode of the battery module.
As shown in fig. 1, the No. 1 battery module includes a first battery 1, a first sensor 1-1, a first jumper 1-2, and a first single-pole double-throw relay 1-3, wherein one end of a normally closed contact of the first single-pole double-throw relay 1-3 is used as a first electrode terminal of the No. 1 battery module, and the other end of the normally closed contact of the first single-pole double-throw relay 1-3 is electrically connected with a first electrode of the first battery 1; one end of a normally open contact of the first single-pole double-throw relay is electrically connected with a first electrode of the No. 1 battery pack module, the other end of the normally open contact of the first single-pole double-throw relay is electrically connected with one end of a first jumper wire 1-2, the other end of the first jumper wire 1-2 is electrically connected with a second electrode of the first battery pack 1, and the second electrode of the first battery pack 1 is used as a second electrode of the No. 1 battery pack module;
after the battery module breaks down or is damaged, the battery management system adjusts the external output voltage and electric quantity of the energy storage system in due time according to the number and the health state of the battery packs which normally work at present.
For example, when the No. 6 battery module is in fault or damaged, the fault information of the No. 6 battery module is transmitted to the battery management system, and the battery management system disconnects the double-throw relay of the No. 6 battery to disconnect the double-throw relay. The battery management system reduces the external output voltage and power according to the existing remaining 17 battery modules, continues to output externally on the premise of ensuring the health and safety of the remaining batteries, and uploads information to the energy storage management system.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (3)

1. The energy storage system capable of automatically eliminating faults is characterized by comprising a plurality of battery pack modules and a battery management system, wherein each battery pack module comprises a battery pack, a sensor for detecting the health state of the battery pack, a jumper wire and a relay, one end of a normally closed contact of the relay is used as a first electrode wiring terminal of the battery pack module, and the other end of the normally closed contact of the relay is electrically connected with a first electrode of the battery pack; one end of a normally open contact of the relay is electrically connected with a first electrode of the battery pack module, the other end of the normally open contact of the relay is electrically connected with one end of a jumper wire, the other end of the jumper wire is electrically connected with a second electrode of the battery pack, and the second electrode of the battery pack is used as a second electrode of the battery pack module;
the battery pack management system is characterized in that the battery pack modules are connected in series to form a battery cluster, the sensor is electrically connected with the battery management system, and the battery management system collects the health state of the battery pack through the sensor and controls the on-off of the relay.
2. The self-troubleshooting energy storage system of claim 1 wherein the relay is a single pole double throw relay and the normally closed contact is electrically coupled to the first electrode of the battery module at the end that is the normally open contact.
3. The energy storage system with the self-fault-elimination function according to claim 1 or 2, wherein after a battery module fails or is damaged, the battery management system timely adjusts the external output voltage and power of the energy storage system according to the number and the health state of the current normally-working battery packs.
CN202020198397.0U 2020-02-24 2020-02-24 Energy storage system capable of automatically removing faults Active CN211296275U (en)

Priority Applications (1)

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CN202020198397.0U CN211296275U (en) 2020-02-24 2020-02-24 Energy storage system capable of automatically removing faults

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CN202020198397.0U CN211296275U (en) 2020-02-24 2020-02-24 Energy storage system capable of automatically removing faults

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CN211296275U true CN211296275U (en) 2020-08-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112421709A (en) * 2020-10-26 2021-02-26 上海空间电源研究所 Aerospace high-voltage power supply charging and discharging management system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112421709A (en) * 2020-10-26 2021-02-26 上海空间电源研究所 Aerospace high-voltage power supply charging and discharging management system

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