A Nonlinear Observer Approach of SOC Estimation Based on Hysteresis Model for Lithium-ion Battery

被引：1

作者：

Yan Ma ^{[1
,2
]}

Bingsi Li ^{[3
]}

Guangyuan Li ^{[3
]}

Jixing Zhang ^{[4
]}

Hong Chen ^{[5
,1
,2
]}

机构：

[1] State Key Laboratory of Automotive Simulation and Control,Jilin University

[2] Department of Control Science and Engineering,Jilin University(Campus Nanling)

[3] Jilin University

[4] Beijing Institute for Control and Electronic Technology

[5] IEEE

来源：

IEEE/CAA Journal of Automatica Sinica | 2017年 / 4卷 / 02期

基金：

中国国家自然科学基金;

关键词：

AMESim; hysteresis model; input-to-state stability (ISS) observer; Lithium-ion battery; state of charge(SOC);

D O I：

暂无

中图分类号：

TM912 [蓄电池];

学科分类号：

0808 ;

摘要：

In this paper, a state of charge(SOC) estimation approach for lithium-ion battery based on equivalent circuit model and the input-to-state stability(ISS) theory has been proposed. According to the electrochemical performance of lithiumion battery, the equivalent circuit model with two RC networks is established, which includes hysteresis characteristic in inner electrochemical response process. The nonlinear relation between open circuit voltage(OCV) and SOC is obtained from a rapid test. Exponential fitting method is used to identify the parameters of the model. A novel state observer based on ISS theory is designed for lithium-ion battery SOC estimation. The designed observer is tested on AMESim and Simulink co-simulation. The simulation results show that the proposed method has a high SOC estimation accuracy with an error of about 2 percent.

引用

页码：195 / 204

页数：10

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