Stator fault diagnosis of a BLDC motor based on discrete wavelet analysis using ADAMS simulation

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Abstract

In this paper, a method is considered to observe the stator inter-turn fault (SITF) in brushless DC motors (BLDCM). This is a crucial subject to deal with, since the fault may cause expensive replacement of parts in case of late diagnosis. The approach used here is the discrete wavelet transform, which is one of the many kinds of time–frequency analysis approaches. Taking advantage of a model closely related to a real BLDCM, the stator current is simulated and the aforesaid signal-based method is applied to it. The feature used as a parameter to determine whether SITF has occurred or not is the average change or deviation in the energy amount of four signals named high frequency (detail) signals. In other words, first, the difference percentage of the energy parameters between those four signals in healthy and faulty operation mode would be measured. Then, the average percentage of the energy variation amounts are to be compared with a threshold to determine the fault occurrence. Having a precise Simulink/Matlab plus ADAMS model of the motor, the designed algorithm will be validated.

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CITATION STYLE

APA

Hosseini, S. M., Hosseini, F., & Abedi, M. (2019). Stator fault diagnosis of a BLDC motor based on discrete wavelet analysis using ADAMS simulation. SN Applied Sciences, 1(11). https://doi.org/10.1007/s42452-019-1449-5

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