电测与仪表2017，Vol.54Issue(2)：1-6,6.
基于仿真对比的电池等效电路模型分析
The equivalent circuit model analysis based on simulation comparison
摘要
Abstract
Lithium iron phosphate battery (LiFePO4) has become the research focus in electric vehicle application areas,due to its high specific power,high specific energy,long life and other advantages.A reasonable equivalent model is necessary for accurate state-of-charge (SOC) estimation.The battery SOC estimation is affected by accuracy and complexity of the model directly.This paper analyzed four equivalent circuit model parameters,and the hybrid pulse power characterization (HPPC) is executed based on LiFePO4 battery test system.The least squares method was implemented in model parameterization,and voltage estimation accuracy of the three empirical models with RC network structure was compared in SOC range 0 ～ 100％.Dual polarization equivalent circuit model accuracy was compared at different temperatures based on federal urban driving schedule (FUDS) test.The experimental results show that dual polarization equivalent circuit model provides better accuracy and low-temperature characteristics.关键词
磷酸铁锂电池/等效电路模型/参数辨识/电池荷电状态Key words
LiFePO4/equivalent circuit model/parameter identification/state-of-charge分类
信息技术与安全科学引用本文复制引用
徐佳宁,裴磊,徐冰亮,武国良,朱春波..基于仿真对比的电池等效电路模型分析[J].电测与仪表,2017,54(2):1-6,6.基金项目
国家电网公司科技项目储能电池评价体系建立与检测标准研究资助 （）
