发电机转子绕组匝间短路故障检测

Survey of Detecting Methods about Inter-Turn Short Circuit Fault in Rotor Windings of Generator

介绍了发电机转子绕组匝间短路故障检测方法的研究现状,重点论述了探测线圈法、定子环流判别法、励磁电流判别法、重复脉冲检测法的原理和效果,分析总结了现行各种方法的优缺点和适用范围,同时概括了小波分析在故障检测中的应用。在此基础上,指出了发电机转子绕组匝间短路故障检测中尚未解决的根本问题以及一些新的发展方向。

The present study situation of fault diagnosis methods about inter-turn short circuit in rotor windings of generator was systematically introduced.Theories and effects of the detecting coil method,circulating stator current method,excitation current method and repetitive surge oscilloscope method were discussed.The advantages and disadvantages of these methods and their scopes of application were analyzed and summarized.The application of wavelet analysis in fault diagnosis was summarized too.Based on this,some problems that remain to be solved in this field and some new research directions were pointed out.