Modeling of LiFePO4 battery open circuit voltage hysteresis based on recursive discrete Preisach model

作     者：孙维毅 闵海涛 郭冬妮 于远彬 

作者机构：State Key Laboratory of Automotive Simulation and Control Jilin University Changchun 130022 China China FAW Group Corporation R & D Center Changchun 130011 China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2017年第26卷第12期

页      面：552-559页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.51107052) 

主　　题：hysteresis lithium-ion batteries modeling 

摘      要：This paper focuses on the modeling of LiFePO4 battery open circuit voltage （OCV） hysteresis. There exists obvious hysteresis in LiFePO4 battery OCV, which makes it complicated to model the LiFePO4 battery. In this paper, the recursive discrete Preisach model （RDPM） is applied to the modeling of LiFePO4 battery OCV hysteresis. The theory of RDPM is illustrated in detail and the RDPM on LiFePO4 battery OCV hysteresis modeling is verified in experiment. The robust of RDPM under different working conditions are also demonstrated in simulation and experiment. The simulation and experimental results show that the proposed method can significantly improve the accuracy of LiFePO4 battery OCV hysteresis modeling when the battery OCV characteristic changes, which conduces to the online state estimation of LiFePO4 battery.