A Data-Driven Algorithm for Short Circuit Fault Diagnosis of Power Batteries

Jian Sun*, Peng Liu, Zhenyu Sun, Yiwen Zhao, Jinquan Pan, Cheng Liu, Zhenpo Wang, Zhaosheng Zhang

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

As a core component of electric vehicles, the power battery is susceptible to various failures with a complex coupling mechanism, making it difficult to achieve precise battery fault diagnosis during real-world driving conditions. To address this issue, this paper proposes a fault diagnosis algorithm based on a sparse data observer. Firstly, the sparse data observer algorithm is utilized to calculate the abnormal degree of the power battery voltage based on actual vehicle data. Secondly, appropriate thresholds are set by combining the existing healthy vehicle data using the 3σ-rule. Finally, the abnormal cell in the battery pack is rapidly identified in different segments. The complexity and variability of the actual operation of the power battery system are considered in the design of this model. The proposed method can accurately identify the abnormal battery cell in the battery pack and diagnose lithium battery faults.

源语言英语
主期刊名The Proceedings of the 18th Annual Conference of China Electrotechnical Society - Volume VI
编辑Qingxin Yang, Zewen Li, An Luo
出版商Springer Science and Business Media Deutschland GmbH
164-173
页数10
ISBN(印刷版)9789819710676
DOI
出版状态已出版 - 2024
活动18th Annual Conference of China Electrotechnical Society, ACCES 2023 - Nanchang, 中国
期限: 15 9月 202317 9月 2023

出版系列

姓名Lecture Notes in Electrical Engineering
1168 LNEE
ISSN(印刷版)1876-1100
ISSN(电子版)1876-1119

会议

会议18th Annual Conference of China Electrotechnical Society, ACCES 2023
国家/地区中国
Nanchang
时期15/09/2317/09/23

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