Research on Active Overbalanced Control Strategy for Lithium-Ion Battery

Wenqing Miao, Shuye Zhang, Yunhao Jiang, Wenfang Ding, Lujun Wang and Raffaele Carli

Mathematical Problems in Engineering, 2022, vol. 2022, 1-10

Abstract: In order to improve the voltage balancing effect of the lithium-ion power battery pack, a control strategy based on single-cell voltage overbalanced in the battery pack was proposed. In this method, the voltage of each battery is taken as the criterion of energy balance, and the analog switch and the energy storage inductor are used in the energy balance circuit. The PID control strategy of overequalization is proposed, which fully considers the self-recovery of voltage after the end of the charging process. The voltage balanced system of the lithium-ion power battery pack based on the voltage of a single-battery pack is realized, and the voltage maintains a stable equilibrium state after being balanced. The experimental circuit built in this paper verifies the effectiveness of the proposed method and gives the experimental waveform and data of the balanced charging module, which proves the scheme’s feasibility.

Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:5554900

DOI: 10.1155/2022/5554900

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