Research on the Performance Evaluation of Lithium-ion Battery Cascade Utilization Based on Impedance Spectrum

被引：0

作者：

Lyu, Chao ^{[1
]}

Wei, Gang ^{[1
]}

Wen, Zhaoliang ^{[1
]}

Zhang, Hongying ^{[1
]}

Wu, Qi ^{[1
]}

Jing, Haitao ^{[2
]}

机构：

[1] Harbin Inst Technol, Sch Elect Engn & Automat, Harbin, Peoples R China

[2] Shanghai Inst Satellite Engn, Shanghai, Peoples R China

来源：

PROCEEDINGS OF THE 15TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS (ICIEA 2020) | 2020年

关键词：

Impedance spectroscopy; SOH estimation; SOP estimation; Fractional order model; ELECTRIC VEHICLES;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In order to evaluate the performance of lithium-ion battery in cascade utilization, a fractional order equivalent circuit model of lithium-ion battery was constructed based on electrochemical impedance spectrum, and the parameters of the model were identified by complex nonlinear least square regression. Using fractional calculus as a tool, the SOP estimation of lithium-ion battery based on impedance spectrum model is realized. A BP neural network is constructed and trained by impedance spectrum data of different aging stages in cycle aging experiment. The SOH estimation of lithium-ion battery based on high sensitivity parameters is realized. The relative error of SOP/SOH estimation is less than 10% and 4%, respectively.

引用

页码：1714 / 1719

页数：6

共 10 条

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