车用锂离子电池模型研究  

Research on Vehicle Lithium-ion Battery Model

作　　者：李延 田亚坤 张恭矾 申彩英[1] 王姝文 LI Yan;TIAN Yakun;ZHANG Gongfan;SHEN Caiying;WANG Shuwen(School of Automobile and Traffic Engineering,Liaoning University of Technology,Jinzhou 121001,China)

机构地区：[1]辽宁工业大学汽车与交通工程学院,辽宁锦州121001

出　　处：《现代车用动力》2023年第4期6-10,共5页Modern Vehicle Power

摘　　要：选取二阶RC电路模型作为研究的等效电路模型,对所选取的锂离子电池进行脉冲放电试验,对电池参数进行辨识。基于Matlab/Simulink平台搭建锂离子电池二阶RC等效电路模型,将实际电池与电池模型放电阶段端电压历史数据进行对比,在混合功率脉冲特性(HPPC)工况与1C放电工况下对模型精度进行验证。结果表明2种工况误差率的绝对值可控制在3%以内,符合预期。A second-order RC circuit model was selected as the equivalent circuit model for research.Pulse discharge experiments were conducted on the selected lithium-ion batteries to identify battery parameters.A second-order RC equivalent circuit model for lithium-ion batteries was built based on the Matlab/Simulink platform.The historical voltage data of the actual battery and battery model was compared during the discharge stage.And the accuracy of the model under HPPC and 1C discharge conditions was rerified.The verifi-cation results indicate that the absolute error rate of these two working conditions is controlled within 3%,which is in line with the ex-pected results.

关 键 词：锂离子电池 等效电路模型 混合功率脉冲特性测试 参数辨识 

分 类 号：U463.6[机械工程—车辆工程]