现代电子技术2025，Vol.48Issue(13)：166-172,7.DOI:10.16652/j.issn.1004-373x.2025.13.024
基于电感电容的锂离子电池组双层均衡方法
Lithium-ion battery pack double-layer equalization method based on inductors and capacitors
摘要
Abstract
The inconsistency of lithium-ion battery packs reduces capacity,shortens service life,and even poses safety risks.Therefore,effective equalization techniques must be introduced to mitigate the impact of inconsistency.A double-layer equalization method is proposed to improve the equalization speed of series-connected lithium-ion battery packs.In this method,a single-inductor equalization structure improved on the basis of the traditional Buck-Boost circuit is employed for the bottom circuit,while an inductor-capacitor series-connected structure is adopted for the top circuit.By taking the battery SOC(state of charge)as the equilibrium target variable,a double-layer equalization control strategy adapted to the topology is established based on the difference-average method.Experiments with six ternary lithium-ion batteries on the Matlab/Simulink platform show that the double-layer equalization control method can improve equalization speed by 14.5%,15.2%and 13.2%in the resting,charging and discharging states,respectively,in combination with the traditional Buck-Boost equalization method.It is confirmed that the proposed method can improve the equalization speed of battery packs.关键词
锂离子电池组/双层均衡方法/荷电状态/均衡速度/Buck-Boost电路/主动均衡Key words
lithium-ion battery pack/dual-layer equalization method/SOC/equalization speed/Buck-Boost circuit/active equalization分类
信息技术与安全科学引用本文复制引用
穆宇红,田国富,吴子尧..基于电感电容的锂离子电池组双层均衡方法[J].现代电子技术,2025,48(13):166-172,7.基金项目
国家自然科学基金项目(52375258) （52375258）
