基于动态灰色关联分析法的高压断路器机械故障诊断  

Diagnosis of Mechanical Faults in High Voltage Circuit Breakers Based on Dynamic Grey Correlation Analysis Method

作　　者：朱斌 陈昊[2] 张若微 陈泓宇 李张颖 ZHU Bin;CHEN Hao;ZHANG Ruowei;CHEN Hongyu;LI Zhangying(State Grid Jurong Power Supply Company,Zhenjiang,Jiangsu 212400,China;State Grid Nanjing Power Supply Company,Nanjing,Jiangsu 210019,China)

机构地区：[1]国网句容供电公司,江苏镇江212400 [2]国网南京供电公司,江苏南京210019

出　　处：《东北电力技术》2024年第4期12-17,共6页Northeast Electric Power Technology

基　　金：国家自然科学基金项目(62203248)。

摘　　要：高压断路器机械故障成因复杂,机械故障与分合闸线圈电流之间难以找到解析的映射关系。因此引入灰色关联分析法,建立一种高压断路器机械故障诊断模型,进一步通过计算参考数列与比较数列的距离来选择分辨系数,提出一种基于动态分辨系数的灰色关联分析法。该方法不需要大量样本数据,且算法精度不受信号干扰的影响。研究表明,选取铁心卡涩运动的时间参量相关度作为故障诊断特征量能有效诊断出高压断路器机械故障。The cause of mechanical fault of high voltage circuit breaker is complicated,and it is difficult to find the analytical mapping relationship between mechanical fault and the current of opening and closing coil.A mechanical fault diagnosis model of high voltage circuit breaker is established by using grey correlation analysis method.Furthermore,it proposes a grey correlation analysis method based on dynamic resolution coefficient by calculating the distance between reference series and comparison series.This method does not require a large amount of sample data and its accuracy is not affected by signal interference.The study shows that selecting the correlation of time parameter in the jamming iron core movement as the fault diagnostic feature can diagnose mechanical failures of high-voltage circuit breakers.

关 键 词：高压断路器 分合闸线圈 灰色关联分析法 动态关联系数 故障诊断 

分 类 号：TM561[电气工程—电器]