Detection of Stator Inter-Turn Short-Circuit Fault in PMSM Based on Improved Wavelet Packet Transform and Signal Fusion
Chen Yong1,2, Liang Hong1,2,3, Wang Chengdong1,2, Liang Siyuan1,2, Zhong Rongqiang1,2
1. School of Automation Engineering University of Electronic Science and Technology of China Chengdu 611731 China; 2. Institute of Electric Vehicle Driving System and Safety Technology University of Electronic Science and Technology of China Chengdu 611731 China; 3. Unit 69031 of the People's Liberation Army of China Urumqi 830000 China
Abstract In this paper, the stator inter-turn short-circuit (ITSC) fault in permanent magnet synchronous motor (PMSM) is regarded as the research object. The frequency spectrum feature of fusion vibration signal and stator current signal is used as the basis for the detection of inter-turn short-circuit fault. The acquisition signal is processed and analyzed by combining advanced wavelet packet transform and FFT in LabView, and the detection of this fault is realized. Improved wavelet packet transform can eliminate spectrum aliasing and get accurate fault characteristics. In addition, the experiments on permanent magnet low speed synchronous motor are carried out, the results of which show that the method is effective.
Chen Yong,Liang Hong,Wang Chengdong等. Detection of Stator Inter-Turn Short-Circuit Fault in PMSM Based on Improved Wavelet Packet Transform and Signal Fusion[J]. Transactions of China Electrotechnical Society, 2020, 35(zk1): 228-234.
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2020, Vol. 35 
