基于多变量融合的主动均衡策略研究  

A Study of Active Equilibrium Strategies Based on Multivariate Integration

作　　者：廖力[1] 孙舒 李宏光 吴铁洲[1] LIAO Li;SUN Shu;LI Hongguang;WU Tiezhou(Hubei Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storagy System,Hubei University of Technology,Wuhan Hubei 430068,China)

机构地区：[1]湖北工业大学,太阳能高效利用及储能运行控制湖北省重点实验室,湖北武汉430068

出　　处：《电子器件》2025年第1期98-104,共7页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(52177212);湖北省教育厅科学研究计划项目(T2021005)。

摘　　要：针对电池组在均衡过程中能量损耗大、均衡时间长以及电路温升较高的问题,提出了一种将开关矩阵和双向Cuk变换器相结合的均衡拓扑,并针对该拓扑设计了一种融合电池电压、SOC和温度的分段模糊逻辑控制策略。所提均衡拓扑可以实现任意单体电池间能量的双向流动,提高了能量传递效率。所提均衡策略在电压和SOC分段均衡的基础上,加入温度作为均衡变量,通过对均衡电流的动态控制,降低电池在均衡过程中的温升,实现了安全范围内的均衡速度最大化。最后在MATLAB/Simulink软件中进行仿真验证,仿真结果表明,与均值-差值算法相比,所提均衡策略不仅能降低约2%的温升,减少约13.2%的能量损耗,且有效提高了均衡速度。验证了所提均衡方法的可行性。In order to solve the problems of high energy loss,long equalization time and high circuit temperature rise in the equalization process of the battery pack,an equalization topology combining a switching matrix and a bi-directional Cuk converter is proposed,and a segmented fuzzy logic control strategy incorporating battery voltage,SOC and temperature is designed for this topology.The proposed equalization topology can achieve equalization and bi-directional flow of energy between any single cell and improve energy transfer effi-ciency.The proposed equalization strategy adds temperature as an equalization variable on the basis of voltage and SOC segmental equalization,and through dynamic control of the equalization current,the temperature rise of the battery during the equalization process is reduced and the equalization rate within the safe range is maximized.The simulation results show that the proposed equalization strat-egy not only reduces the temperature rise by about 2%and the energy loss by about 13.2%,but also effectively increases the equaliza-tion speed compared with the mean-difference algorithm.The feasibility of the proposed equalization method is verified.

关 键 词：多变量融合 主动均衡 双向Cuk变换器 模糊逻辑控制 

分 类 号：TM912[电气工程—电力电子与电力传动]