摘要
为解决实际应用中精度和复杂度的矛盾,在原始Thevenin电池等效模型的基础上,通过增加RC网络的方式,得到精度和仿真时长均能满足要求的改进Thevenin等效电路模型;通过锂离子电池充放电实验,得到复合脉冲实验数据,运用最小二乘拟合法对电池模型参数进行辨别;建立基于Simscape模型库的改进型Thevenin电池仿真模型,并进行仿真。通过将原Thevenin模型仿真电压、改进模型仿真电压与实验实测电压进行对比,改进模型和原模型的平均误差分别为0.02 V、0.06 V。
To solve the contradiction between accuracy and complexity of the Thevenin battery equivalent model in practical applications, improved Thevenin equivalent circuit model, which could satisfy the requirements of precision and the simulation time simultaneously was developed by adding RC network. The composite pulse experimental data was obtained through the charge- discharge experiment of Li-ion battery, the least square fitting method was used for parameter identification of battery model. The improved Thevenin battery simulation model library was established based on Simscape model and simulated. Comparing with the original model simulation voltage, the improved model simulation voltage and the experimental measured voltage, the average error of the improved model and the original model was 0. 02 V and 0. 06 V respectively.
作者
钱能
严运兵
李文杰
王维强
QIAN Neng;YAN Yun-bing;LI Wen-jie;WANG Wei-qiang(School of Automobile and Traffic Engineering,Wuhan University of Science and Technology,Wuhan,Hubei 430065,China)
出处
《电池》
CAS
CSCD
北大核心
2018年第4期257-261,共5页
Battery Bimonthly
基金
国家自然科学基金(51505345)
湖北省教育厅基金(Q20151105)
"湖北省新能源汽车协同创新中心"合作建设项目
湖北省大学生创新创业训练计划(201610488039)
