摘要
基于三阶等效电路模型建立了车载辅助动力蓄电池的动态数学模型,采用最小二乘法实现模型参数辨识;通过设计开路电压的龙贝格渐进状态观测器实现了蓄电池SOC的闭环估计;理论分析及实验结果表明,所提出的估计方法有效,采用该方法不仅能克服电流积分法积分累计误差的问题,而且可以有效解决实际运行中初始SOC值难于确定的问题。
A dynamic mathematical model of Li-ion battery used on fuel cell electric vehicle was constructed herein based on third order equivalent current model firstly. A Luenberger closed-loop states observer was then designed to estimate battery SOC based on the dynamic model and feedback of battery voltage measured. Finally, the proposed algorithm was verified by cycle and field experiments.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2010年第20期2505-2509,共5页
China Mechanical Engineering
基金
国家高技术研究发展计划(863计划)资助项目(2003AA501011)
山东省教育厅计划资助项目(J07WJ11)
关键词
燃料电池汽车
蓄电池
荷电状态
状态观测器
fuel cell hybrid vehicle
power battery
state of charge（SOC）
states observer
