一种用于储能电站的单体电池的故障预警方法及系统

By using time-frequency domain feature extraction, relaxation analysis, and electrochemical mechanism training, a fault early warning network was developed, which solved the problems of accuracy and efficiency in early warning of single-cell battery faults in energy storage power stations, and achieved efficient and reliable fault identification and early warning.

CN122063458BActive Publication Date: 2026-07-17STATE GRID ENERGY CONSERVATION SERVICE
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Patent Information

Application Number
CN202610534132.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-04-22
Publication Date
2026-07-17
Estimated Expiration
2046-04-22

AI Technical Summary

Technical Problem

Existing single-cell fault early warning technologies for energy storage power stations rely on a single operating parameter and fail to incorporate the battery's electrochemical response characteristics, resulting in serious issues of missed and false alarms. Furthermore, the models have weak generalization capabilities and cannot meet the requirements for long-term, high-safety-level operation.

Method used

By extracting time-frequency domain features, relaxing analysis, capacity differential benchmark verification and tensor coupling, multidimensional health features are constructed, and an early warning network is trained in conjunction with electrochemical mechanisms to improve the accuracy and efficiency of fault early warning.

Benefits of technology

It significantly improves the ability to identify fault signals, reduces missed and false alarms, enhances the generalization ability of the model, improves the efficiency and accuracy of fault early warning, and provides reliable protection for the safe and stable operation of energy storage power stations.

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Abstract

本发明公开了一种用于储能电站的单体电池的故障预警方法及系统,属于电池故障诊断技术领域,方法包括:对储能电站中目标单体电池在恒定充放电阶段的连续运行数据进行时频域特征提取,得到多维特征融合序列;对目标单体电池的电压与电流响应曲线进行时序分析,得到弛豫特征参数;将多维特征融合序列中容量微分特征进行基准校验,得到特征峰偏移量;将特征峰偏移量与弛豫特征参数进行张量耦合解析,构建多维健康状态特征向量;对预定义的初始电池健康网络进行训练,构建故障预警网络;将多维健康状态特征向量输入至故障预警网络中,对输出结果进行决策整合,得到综合故障信息。本发明能够提升储能电站单体电池故障预警的精准度、效率与提前量。
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Citation Information

Patent Citations

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