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Automatic equalization method for storage battery

An automatic equalization and storage battery technology, which is applied in electric vehicles, battery circuit devices, secondary battery repair/maintenance, etc., can solve problems such as battery overcharging, battery undercharging, and affecting battery life, so as to avoid battery undercharging, The effect of extending the service life

Pending Publication Date: 2022-04-15
国网江西省电力有限公司超高压分公司 +2
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AI Technical Summary

Problems solved by technology

[0002] Due to the inconsistency of the charge saturation of each battery when leaving the factory, and the inconsistency of the self-discharge current after the battery is put into use, there will be unbalanced voltage and capacity of each battery after the battery has been running for a period of time.
After the battery is unbalanced, some batteries will be undercharged during charging, and some batteries will be overcharged, which will affect the service life of the battery in the long run, so it is necessary to balance the management of the battery pack

Method used

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  • Automatic equalization method for storage battery

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Embodiment Construction

[0008] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0009] A battery automatic equalization method, including a battery voltage acquisition and equalization control module IC, a switch module and n battery CELLs, C0-Cn in the battery voltage acquisition and equalization control module are battery input pins, and S1-Sn are battery equalization pins Control pin, set n ADCs in the battery voltage acquisition and equalization control module, respectively measure the individual voltage of each battery; the switch module is composed of n switch sub-modules, each switch sub-module consists of MOS tube Q, four Composed of a resistor R, two capacitors C and a light-emitting diode LED RED, the battery voltage acquisition and equalization control module IC can monitor the voltage imbalance of the battery CELL, when the voltage of a certain ...

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Abstract

The invention discloses an automatic equalization method for a storage battery. A battery voltage acquisition and equalization control module, a switch module and n batteries are included. The battery voltage acquisition and equalization control module can monitor the voltage imbalance condition of the batteries, when the voltage of a certain battery is greater than a stabilizing voltage, the switch module is driven through the S pin, the switch module is conducted, and the battery is discharged; and when equalization is carried out, the LED corresponding to the battery is lightened for prompting. The method has the advantages that equalization management can be carried out on the battery pack, the service life of the storage battery is prolonged, and the problems of undercharge of part of batteries and overcharge of part of batteries during charging are avoided.

Description

technical field [0001] The invention relates to the technical field of direct current power supplies in power system substations, in particular to an automatic balancing method for storage batteries. Background technique [0002] Due to the inconsistency of the charge saturation of each battery when it leaves the factory, and the inconsistency of the self-discharge current after the battery is put into use, there will be imbalances in the voltage and capacity of each battery after a period of operation. After the battery is unbalanced, some batteries will be undercharged during charging, and some batteries will be overcharged, which will affect the service life of the battery in the long run. Therefore, it is necessary to balance the management of the battery pack. Contents of the invention [0003] The object of the present invention is to provide an automatic battery equalization method capable of performing balanced management on battery packs and prolonging the service...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44
Inventor 彭淑明李俊陈益民曾莹饶诗琴周小兵周盛刘海飞李晨阳邵静吴骅
Owner 国网江西省电力有限公司超高压分公司
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