摘要
电池的荷电状态(state of charge,SOC)和健康状态(state of health,SOH)作为电动汽车动力电池的重要指标,准确估计SOC与SOH对确保电动汽车运行高效、安全以及稳定有着重要意义。由于SOC与SOH之间有着耦合关系,单独估计SOC或SOH都会造成估计精度的影响,因此联合估计SOC与SOH是当前迫切需要解决的问题。联合估计策略主要分为基于模型方法、数据驱动方法以及混合方法,并对每类方法进行了分析与总结,最后阐述了SOC与SOH联合估计的发展趋势。
State of charge(SOC)and state of health(SOH)of battery are significant indicators of electric vehicle power battery,and to guarantee effective,safe,and steady operation of electric vehicles,precise SOC and SOH estimate is crucial.Due to the coupling relationship between SOC and SOH,the estimation precision of SOC or SOH alone will be affected,so the joint estimation of SOC and SOH is an urgent problem to be solved.The joint estimation strategies were mainly divided into model-based methods,data-driven methods and mixed methods,and each type of methods was analyzed and summarized.Finally,the development trend of SOC and SOH joint estimation was described.
作者
王志福
张顺顺
罗崴
卢彦希
WANG Zhi-fu;ZHANG Shun-shun;LUO Wei;LU Yan-xi(School of Automation,Guangxi University of Science and Technology,Liuzhou 545000,China;National Engineering Research Center of Electric Vehicles,Beijing Institute of Technology,Beijing 100081,China;School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China;School of Mechanical and Electrical Engineering and Automation,Shanghai University,Shanghai 200444,China)
出处
《科学技术与工程》
北大核心
2025年第25期10537-10550,共14页
Science Technology and Engineering
基金
广东省重点领域研发计划(2023B0909050002)。
关键词
荷电状态
健康状态
动力电池
联合估计
state of charge
state of health
power battery
joint estimation
作者简介
第一作者:王志福(1977-),男,汉族,山东青岛人,博士,教授。研究方向:电机驱动系统、智能电动车辆测试装备与测试技术研发。E-mail:wangzhifu@bit.edu.cn;通信作者:罗崴(1995-),男,汉族,湖南长沙人,博士研究生。研究方向:锂离子电池的故障诊断与安全预警。E-mail:luowei@bjtu.edu.cn。
