Chinese Journal of Electrical Engineering ›› 2018, Vol. 4 ›› Issue (1): 74-82.

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A New Diagnostic Method for Winding Short-Circuit Fault for SRM Based on Symmetrical Component Analysis

Li Xiao1,2,*, Hexu Sun2, Feng Gao3, Shuping Hou1, Lipeng Li1,2   

  1. 1. Tianjin University of Commerce, School of Information Engineering, Tianjin 300134, China;
    2. Control Science and Engineering College, Hebei University of Technology, Tianjin 300130, China;
    3. Shenhua Tianjin Coal Terminal Co., Ltd., Tianjin 300452, China
  • Online:2018-03-25 Published:2019-10-31
  • Contact: * E-mail: xiaoli060755@126.com.
  • About author:Xiao Li received B.S and M.S degrees in Control Theory and Control Engineering from Hebei University of Technology in 2009 and 2011. She began her PhD study in Hebei University of Technology in 2011 and received her PhD degree Jun. 2014. She received her PhD degree in University of Tennessee in Dec. 2011. She joined Tianjin University of Commerce in July 2014. Xiao Li’s major research area is motion control and fault diagnosis, with more than 20 published/accepted journal and conference papers in this area. Hexu Sun received the B.S. degree in electrical motor drives in 1982 from Liaoning Technical University, China, and the M.S. degree and Ph.D. degree in power electronics both from Northeastern University, China. Currently, he is the president of Hebei University of Science & Technology. His research interests include engineering systems control, new energy generation, intelligent manufacturing and intelligent manufacturing, power electronics and electric drives, with more than 100 published/ accepted journal and conference papers and 20 patents and patent applications in this area. He is the IEEE senior member and the Ministry of Education Teaching Guidance Committee. Gao Feng was born in Tianjin, China. He received B.S. degree and M.S. degree in Control Theory and Control Engineering from the Hebei University of Technology, China, in 2009 and 2012, respectively. He is a research fellow in SHENHUA Tianjin Coal Terminal Co., Ltd, China. His research interests include power electronics and electric drives, and fault diagnosis. Shuping Hou received B.S. degree and Ph.D. degree in Electrical Engineering from the Hebei University of Technology, China, in 1998 and 2010, respectively. She joined Tianjin University of Commerce in July 1999. Prof. Hou has been involved in power electronics and electric drives for more than 15 years. Lipeng Li received B.S. degree and M.S. degree in automation and control theory and control engineering from the Hebei University of Technology, China, in 2011 and 2015, respectively. He is currently a research fellow in the Tianjin University of Commerce, China. His research interests are electrical motor drives, and robot control.
  • Supported by:
    Supported by the Natural Science Foundation of Tianjin of China (No.16JCQNJC04200), and the National Natural Science Foundation for nurturing of Tianjin University of Commerce (No.160123).

Abstract: Winding short-circuit is one of the more common faults in switched reluctance motors (SRM). This paper takes an in-depth look at winding short-circuit. The characteristic of non-sinusoidal intermittent single phase current, fundamental components are extracted to reconstruct four phase symmetrical currents based on spectrum analysis of phase currents. The method of symmetrical component is used to calculate positive and negative sequence components of reconstructed currents, where then the ratio between positive and negative sequence component is seen as a fault feature and the diagnostic criterion is proposed. The simulation and experimental results are presented to confirm the implementation of the proposed method.

Key words: Symmetrical component, spectral analysis, winding short-circuit fault, switched reluctance motor