Parameter Identification of Equivalent Circuit Models for Li-ion Batteries Based on Tree Seeds Algorithm

International Conference on Sustainable Energy Engineering

能源学;经济学

Chen, W.J.^1 ; Tan, X.J.^1 ; Cai, M.^1

School of Engineering, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou

510275, China^1

关键词: Electrochemical models;    Equivalent circuit model;    Experimental verification;    Identification algorithms;    Lower complexity;    Objective functions;    Parameter identification methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/73/1/012024/pdf
DOI  :  10.1088/1755-1315/73/1/012024

来源: IOP

【 摘 要 】

Parameter identification method of equivalent circuit models for Li-ion batteries using the advanced tree seeds algorithm is proposed. On one hand, since the electrochemical models are not suitable for the design of battery management system, the equivalent circuit models are commonly adopted for on-board applications. On the other hand, by building up the objective function for optimization, the tree seeds algorithm can be used to identify the parameters of equivalent circuit models. Experimental verifications under different profiles demonstrate the suggested method can achieve a better result with lower complexity, more accuracy and robustness, which make it a reasonable alternative for other identification algorithms.