Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
Title Early Detection Technique in IPM-type Motor with Stator-Turn Fault using Impedance Parameter
Authors 정채림(Jeong, Chae-Lim) ; 김경태(Kim, Kyung-Tae) ; 허진(Hur, Jin)
Page pp.612-619
ISSN 1975-8359
Keywords Stator turn fault ; Input impedance ; Detection algorithms ; Fault diagnosis ; Winding function
Abstract This paper proposes an early diagnosis technique for the stator-turn fault (STF) in an interior permanent magnet (IPM)-type brushless DC (BLDC) motor using the impedance parameter. We have analyzed the varying characteristics owing to the STF through various experiments and the finite element method (FEM). As a result, we have presented a simple method for fault detection. This technique can be applied without requiring a fast Fourier transform (FFT) and the calculation of the negative-sequence impedance. The fault detection system works on the basis of the comparison the measured impedance with the database impedance. The variations in the characteristics owing to the STF as well as the proposed technique have been verified through the simulation and experiment.