期刊
IEEE ACCESS
卷 9, 期 -, 页码 126903-126916出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2021.3111927
关键词
Mathematical model; Estimation; Integrated circuit modeling; Data models; State of charge; Kalman filters; Degradation; Lithium-ion battery; state of health; data-driven methods; state estimation
资金
- Regional Key Research and Development Program of Inner Mongolia Autonomous Region in China [2020ZD0018]
- Science and Technology Foundation of State Grid Corporation of Beijing [52022319005Q]
Accurate estimation of state-of-health (SOH) is crucial for the efficiency and safety of lithium-ion batteries in electric vehicles. Data-driven methods show potential for accurate SOH estimation, but there is a lack of comprehensive research and performance comparison among these methods.
State-of-health (SOH) estimation is a critical factor in ensuring the efficiency, reliability, and safety of lithium-ion batteries (LIBs) in electric vehicles (EVs). However, due to the complexity of electrochemical processes in batteries and the dynamics of working conditions, it is challenging to estimate SOH accurately, especially in real-world EV application scenarios. Thus, various data-driven methods with robust and adaptive features for SOH estimation have been widely proposed in the current literature. However, there is a lack of a comprehensive investigation and performance comparison of those methods, which makes them hard to be adopted in practice. Hence, in this paper, we have studied current major data-driven methods with real-world EV battery data to evaluate the performance. Besides, we summarize each method's advantages and limitations with the consideration of the critical features required to achieve accurate SOH estimation in real-world applications. Hopefully, this paper provides a practical insight into the related fields.
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