汽轮发电机转子绕组匝间短路的检测方法

本文介绍了汽轮发电机转子绕组匝间短路检测的各种方法,论述了这些方法用于故障检测的原理和效果,比较了各种方法的优缺点.同时,首次将小波分析方法用于转子绕组匝间短路故障的检测,指出小波分析方法适用于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.

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

In this paper, various fault diagnosis methods about interturn short circuit in rotor windings of turbogenerator are presented. Theories and effects of fault diagnosis methods are discussed. Advantage and disadvantage of each met hod are compared. It is the first time applying wavelet analysis to detecting th e fault of interturn short circuit in rotor windings. Wavelet analysis is applic able to picking up dynamic and non-stability signal characteristic, it is fit fo r the real-time fault detecting of interturn short circuit in rotor windings o f turbogenerator.