发电机转子绕组匝间短路故障检测方法的研究  

Detecting Methods about Interturn Short Circuit Fault in Rotor Windings of Turbogenerator

作　　者：张志猛[1] 张建忠[2] 李永刚[1] 阎春雨[3] 

机构地区：[1]华北电力大学,河北保定071003 [2]河北省电力研究院,石家庄050021 [3]中国电力科学研究院,北京100085

出　　处：《河北电力技术》2008年第5期11-14,共4页Hebei Electric Power

摘　　要：介绍了几种动态检测汽轮发电机转子绕组匝间短路故障的方法,比较了各种方法的优缺点,并重点介绍了在探测线圈法基础上将小波分析用于转子绕组匝间短路故障的检测方法,指出小波分析方法适用于探测线圈感应电动势动态非平稳故障信号的特征提取,适合于汽轮发电机转子绕组匝间短路实时的故障检测。Various fault diagnosis methods about intertern short circuit in rotor windings of turhogenerator are presented firstly. Advantages and disadvantages of each method are compared. Wavelet analysis detection method which is introduced to detect the fault of interturn short circuit in rotor windings based on the detecting coil method is recommended in detail. Simulation test result indicates that wavelet analysis method is applicable to extract fault characteristic of the dynamic and non-stability induced electromotive force signal and fits for real-time detection of interturn short circuit fault in rotor windings of turbogenerator.

关 键 词：汽轮发电机 转子绕组 匝间短路 故障检测 探测线圈法 

分 类 号：TM311[电气工程—电机]