Influence of Load Fluctuations upon Diagnosis of Mixed Eccentricity Fault In Induction Motors using Time Stepping Finite Element Method

摘要

In this paper voltage-fed time stepping finite element (TSFE) method is applied for diagnosis of mixed eccentricity fault in an induction motor. In addition, influence of load fluctuations upon the degree of the mixed eccentricity fault, is investigated. It is shown that increase of load causes higher current harmonic components around fundamental component and its side's harmonics, while this was previously related to the extension of the fault.