电子科技2024，Vol.37Issue(7)：9-15,7.DOI:10.16180/j.cnki.issn1007-7820.2024.07.002
基于两级均衡电路的电池组智能均衡方法
Intelligent Equalization Method of Battery Pack Based on Two-Level Equalization Circuit
摘要
Abstract
In order to solve the problem of low efficiency of traditional balanced electric topology,a two-level balanced topology is proposed.This balancing topology divides the battery pack into two forms:Intra-group and in-ter-group.Buck-Boost equalization circuit is used in the group,and reconfigurable equalization circuit is used be-tween the groups.The intra-group and inter-group can be equalized at the same time,which improves the equali-zation efficiency.Taking SOC(State of Charge)as the equalization variable,the intra-group equalization algorithm adopts the fuzzy logic control strategy based on SOC to reduce the equalization time and improve the equalization effi-ciency.MATLAB/Simulink software is used to model and simulate the circuit topology and the results are compared with the traditional Buck-Boost circuit.The simulation results show that compared with the traditional Buck-Boost circuit,the proposed algorithm and equalization topology reduce the equalization time by about 28%under the charge-discharge state,indicating that the equalization circuit and algorithm have good performance.关键词
电动汽车/锂离子电池/电池组均衡/两级均衡电路/模糊逻辑控制/SOC/Buck-Boost电路/可重构电路Key words
electric vehicle/lithium ion battery/battery pack balance/two-stage balance circuit/fuzzy logic control/SOC/Buck-Boost circuit/reconfigurable circuit分类
信息技术与安全科学引用本文复制引用
任子豪,田恩刚..基于两级均衡电路的电池组智能均衡方法[J].电子科技,2024,37(7):9-15,7.基金项目
国家自然科学基金(62173231,62003213)National Natural Science Foundation of China(62173231,62003213) （62173231,62003213）
