Rotor Fault Diagnosis of Induction Motor Based on Comprehensive Correlation Degree Analysis
Niu Qin-zhou · Coal Mine Machinery · 2009
Based on the gray correlation theory, the similar coefficient was introduced to the grey correlation analysis, and then, the gray correlation degree was coupled with the similar coefficient to form the comprehensive correlative degree. The rotor induction motor faults were diagnosed according to the comprehensive correlation degree. According to the typical rotor fault model, some typical fault samples were divided into several sets of induction motor rotor fault reference model. According to the given calculation method for the comprehensive relation degree, the comprehensive relational degree of unidentified induction motor rotor fault model was computed. According to the correlation sequence, the rotor fault was identified for induction motor. The results indicate that the method is available for the induction motor rotor fault diagnosis and has better classified diagnosis ability than BP neural network method.