A Study on Equalization Strategy in Battery Management Systems

摘要：

　　The battery management system as an important part for electric vehicles is used to manage the way of battery storing and releasing energy.In order to improve energy usage efficiency, the cell voltage and state of charge (SoC)/capacity based equalization strategies are discussed both in the passive and active equalization topologies in this paper.In practical, the cost of the active equalization is usually higher than passive equalization.Besides, the safety and reliability of the active equalization can”t be guaranteed due to its complex control systems.On the contrary, the passive equalization strategies are easier to complement.Experiments under dynamic stress test profiles (DST) are performed to verify the algorithm performance.A cell voltage based passive balance equalization strategy is applied on a lithium-ion battery pack which is used on the urban bus.The experiments show that good equalization results can be obtained by proposed methods.

关键词： Battery Management Battery Model Passive Equalization Equalization Strategy

作者: Zhang Xu Wang Yu-jie Chen Zong-hai

作者单位: Department of Automation, University of Science and Technology of China, Anhui, Hefei, 230027

会议类型: 国内会议

会议名称: 第18届中国系统仿真技术及其应用学术年会(18th CCSSTA 2017)

会议地点: 兰州

会议语种:英文

页码: 97-100

在线出版日期: 2017-08-01（万方平台首次上网日期，不代表论文的发表时间）