摘要
为了获得更优的用于电动汽车荷电状态(SOC)估计的动力锂电池模型,分别针对美国新一代汽车合作伙伴计划(PNGV)模型、Thevenin模型、Universal模型三种常用的适合于锂电池SOC估计的非线性模型在特定放电工况下利用matlab/simulink进行建模、参数辨识和仿真,依据实验结果分析比较其模型精确度、响应特性以及应用可行性。最终综合比较得出PNGV模型精度更高、鲁棒性强,也更加适合实践应用的结论。
To figure out how to choose battery models for the state of charge estimation of electric vehicles, modeling, parameter identification and simulation were respectively carried out with Matlab/Simulink to three types of non-linear models namely PNGV model, Thevenin model and Universal model suitable for Lithium-ion battery SOC estimation in special work conditions, and the precision, response characteristics and availability for application were analyzed and compared based on the experiment results. Finally,it was concluded that PNGV model was more precise and more suitable for application.
出处
《农业装备与车辆工程》
2015年第5期37-41,共5页
Agricultural Equipment & Vehicle Engineering
关键词
动力锂电池
荷电状态
非线性模型
参数辨识
分析比较
lithium-ion battery
state of charge
non-linear model
parameter identification
comparison and analysis
