基于互功率谱的异步电动机转子故障征兆提取  

Exracting Rotor Fault Features of Induction Motors Using Cross Power Spectrum

作　　者：李文霞[1] 兰华[1] 王春英[2] 

机构地区：[1]东北电力学院电力工程系,吉林吉林132012 [2]吉林石油集团有限责任公司热电厂,吉林松原138000

出　　处：《东北电力学院学报》2003年第4期56-59,共4页Journal of Northeast China Institute of Electric Power Engineering

摘　　要：提出了一种基于互功率谱的转子断条故障征兆提取方法 ,它能在电机故障早期时 ,信噪比较低的情况下 ,有效地预报早期故障 ,从而为诊断转子断条故障提供一种全新的、有效的方法。A new method of extracting rotor bar breaking fault features is introduced.It can be applied in the conditions of low signal to noise ratio which often happens at the beginning of fault so that the fault can be discovered earlier and a new and effective method for diagnosing the rotor bar breaking fault can be offered.Results of numerical simulation show that the approach has a good prospect in project appliance.

关 键 词：异步电动机 转子 互功率谱 故障征兆提取方法 故障诊断 

分 类 号：TM343[电气工程—电机]