On-line SOC Estimation of Li-ion Battery Using Luenberger Closed-loop States Observer

China Mechanical Engineering ›› 2010, Vol. 21 ›› Issue (20): 2505-2509.

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On-line SOC Estimation of Li-ion Battery Using Luenberger Closed-loop States Observer

Yun Haitao1;Zhao Yulan1;Zhong Zaimin2

1.Qingdao Technological University,Qingdao,Shandong,266033

2.Tongji University,Shanghai,201804

Online:2010-10-25 Published:2010-10-29
Supported by:

National High-tech R&D Program of China (863 Program) （No. 2003AA501011）;
Shandong Provincial Project of Ministry of Education of China（No. J07WJ11）

基于龙贝格状态观测器的车载辅助动力蓄电池SOC估计

贠海涛1;赵玉兰1;钟再敏2

1.青岛理工大学,青岛,266033

2.同济大学,上海,201804

基金资助:
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)
National High-tech R&D Program of China (863 Program) （No. 2003AA501011）;
Shandong Provincial Project of Ministry of Education of China（No. J07WJ11）

Abstract

Abstract:

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.

Key words: fuel cell hybrid vehicle, power battery, state of charge(SOC), states observer

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。

关键词:

燃料电池汽车, 蓄电池, 荷电状态, 状态观测器



CLC Number:

TM912.1

YUAN Hai-Chao, DIAO Yu-Lan, ZHONG Zai-Min.

On-line SOC Estimation of Li-ion Battery Using Luenberger Closed-loop States Observer

[J]. China Mechanical Engineering, 2010, 21(20): 2505-2509.

贠海涛, 赵玉兰, 钟再敏.

基于龙贝格状态观测器的车载辅助动力蓄电池SOC估计

[J]. 中国机械工程, 2010, 21(20): 2505-2509.

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On-line SOC Estimation of Li-ion Battery Using Luenberger Closed-loop States Observer

基于龙贝格状态观测器的车载辅助动力蓄电池SOC估计

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