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Storage battery pack open circuit monitoring and voltage loss compensation device

A battery pack and compensation device technology, applied in battery circuit devices, circuit devices, circuit monitoring/indication, etc., can solve problems such as low voltage and affecting the normal operation of equipment

Active Publication Date: 2021-10-22
QINZHOU POWER SUPPLY BUREAU OF GUANGXI POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: in the process of voltage loss compensation, the voltage on the bus to be compensated is lower than the normal voltage, and long-term operation may affect the normal operation of the equipment on the line

Method used

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  • Storage battery pack open circuit monitoring and voltage loss compensation device
  • Storage battery pack open circuit monitoring and voltage loss compensation device

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] Such as figure 1 and figure 2 As shown, the battery pack 1 open-circuit monitoring and voltage loss compensation device disclosed in the present invention includes a battery pack 1, and the battery pack 1 includes a plurality of power modules 2 connected in series, and the power module 2 includes a single battery 3, The main prompting circuit 4, the loss of voltage power-off circuit 5, the loss of voltage compensation circuit 6, the auxiliary prompting circuit 7 and the backup battery 8, the negative pole of the single battery 3 is electrically connected to the negative pole of the power module 2, the positive pole of the single battery 3 is connected to the main prompting The circuit 4 is electrically connected, the main prompt circuit 4 is electrically connected to the first end of the power loss circuit 5 and the first end of the voltage compensat...

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PUM

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Abstract

The invention discloses a storage battery pack open circuit monitoring and voltage loss compensation device, and relates to the technical field of storage battery pack maintenance. The device is characterized in that the device comprises a storage battery pack, the storage battery pack comprises a plurality of power supply modules, and each power supply module comprises a single battery, a main prompt circuit, a voltage loss power-off circuit, a voltage loss compensation circuit, an auxiliary prompt circuit and a standby battery. The device has the advantages that when any single battery in the storage battery pack is in an open circuit or a plurality of single batteries are in an open circuit at the same time, the standby battery in each open-circuit power supply module can replace the open-circuit single battery to supply power, so that the overall output voltage of the storage battery pack is kept unchanged, and normal operation of equipment on a circuit can be ensured.

Description

technical field [0001] The invention relates to the technical field of battery pack maintenance, in particular to a battery pack open circuit monitoring and voltage loss compensation device. Background technique [0002] As a part of the power secondary system in the substation, the DC system of the substation is used for relay protection, monitoring, control, communication, etc. in the substation. As the backup power supply in the DC system, the battery pack maintains the DC bus voltage stability when the external AC loses power due to accidents or faults, and ensures the continuous operation of relay protection, monitoring, control, and communication, so that the protection can act in time to prevent faults and accidents. Further progress and expansion have effectively guaranteed the safe operation of the power system. It can be seen that the battery pack plays an important role in ensuring the safe operation of the power system in the DC system, especially at the critica...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0013H02J7/0029H02J7/0047H02J7/0063
Inventor 李文伟巫聪云王晓明陈宝欢宁庆泉陈树廷伍建华庞丽梅
Owner QINZHOU POWER SUPPLY BUREAU OF GUANGXI POWER GRID CO LTD
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