Diagnosis of Different Types of Air-Gap Eccentricity Fault in Switched Reluctance Motors Using Transient Finite Element Method

Document Type : Research paper


1 Ahar Branch, Islamic Azad University, Ahar, Iran

2 University of Tabriz, Tabriz, Iran


This paper presents a method for diagnosis of eccentricity fault in a switched-reluctance motor (SRM) during offline and standstill modes. In this method, the fault signature is differential induced voltage (DIV) achieved by injecting diagnostic pulses to the motor windings. It will be demonstrated by means of results that there is a correlation between differential induced voltage and eccentricity occurrence. The method employs three-dimensional transient finite-element method (TFEM) analysis to calculate differential induced voltage in three phase 6/4 SRM. In this method, first of all the fault presence is distinguished. Next, an algorithm is presented for the detection of fault location or faulty phase. Then, the direction of fault is recognized by a simple comparative technique, and finally, results comparing is proposed to detect fault type.


Main Subjects

Volume 3, Issue 2 - Serial Number 2
December 2015
Pages 94-101
  • Receive Date: 01 December 2014
  • Revise Date: 17 May 2015
  • Accept Date: 22 May 2015
  • First Publish Date: 15 December 2015