2025年7月27日 周日
Home > Archive>Volume 37, Issue 6, 2022 >17-24. DOI:10.19781/j.issn.1673-9140.2022.06.002
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Life cycle optimal charging strategy based on the SOH of power lithium ion battery
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    Abstract:

    In the view of the battery serious aging caused by the constant-current-constant-voltage(CC-CV) charging strategy which adopts the empirical charging current values, this paper proposes an improved CC-CV charging strategy. Firstly, with the goal of minimum decline capacity of battery, the database dynamic programming (DDP) is employed for the planning of the battery life cycle on the basis of the capacity decline model of lithium-ion battery. After that, the corresponding optimal charging current distribution under different cycle stages is obtained, and the influence of the charging current on the battery capacity decay is also analyzed. Finally, in MATLAB/Simulink simulation, the proposed strategy is compared with the existing CC-CV charging strategy. It is shown that this strategy can effectively extend the battery cycle life.

    Reference
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夏向阳,邓子豪,张嘉诚,陶然,张唯千,张静,滕欣元,朱汉钦,符志宇,易修齐.基于动力锂离子电池健康状态的全寿命周期优化充电策略[J].电力科学与技术学报英文版,2022,37(6):17-24. XIA Xiangyang, DENG Zihao, ZHANG Jiacheng, TAO Ran, ZHANG Weiqian, ZHANG Jing, TENG Xinyuan, ZHU Hanqin, FU Zhiyu, YI Xiuqi. Life cycle optimal charging strategy based on the SOH of power lithium ion battery[J]. Journal of Electric Power Science and Technology,2022,37(6):17-24.

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