基于改进相关系数的锂离子电池组电压异常检测方法
Voltage Anomaly Detection Method of Lithium-ion Battery Pack Based on an Improved Correlation Coefficient
陈明福 1涂瑞珍2
作者信息
- 1. 泉州职业技术大学 中营汽车学院,福建 泉州 362000
- 2. 福建省搜果智能科技有限公司,福建 泉州 362000
- 折叠
摘要
锂离子电池是储能系统的核心组成部分,其安全状态直接影响储能系统的可靠运行.针对锂离子电池欠压故障和过压故障难以准确区分的问题,文章提出了一种基于改进相关系数的电压异常检测方法.首先,分析了欠压故障和过压故障的特征;其次,改进相关系数使其能够准确反映电压的变化方向;然后,设计了电池组电压异常的在线检测流程;最后,通过实验验证了所提方法的有效性.
Abstract
Lithium-ion battery is the core component of the energy storage system,and its safety status directly affects the reliable operation of the energy storage system.Aiming at solving the problem that undervoltage fault and overvoltage fault are difficult to distinguish accurately,a voltage anomaly detection method based on improved correlation coefficient is proposed in this paper.Firstly,the characteristics of undervoltage fault and overvoltage fault are analyzed.Secondly,an improved correlation coefficient is developed to accurately reflect the direction of voltage change.Further,the flow of battery voltage anomaly detection is designed.Finally,the effectiveness of the proposed method is verified by experiments.
关键词
锂离子电池/欠压故障/过压故障/异常检测/改进相关系数Key words
Lithium-ion batteries/undervoltage fault/overvoltage fault/anomaly detection/improved correlation coefficient引用本文复制引用
基金项目
福建省高校应用技术工程中心开放课题(CQJNY24-06)
福建省教育厅中青年科研项目(JAT231197)
出版年
2024
NETL
NSTL
万方数据