Abstract
In permanent magnet synchronous motors, stator inter-turn short circuit fault caused by insulation in windings causes an overcurrent in phase winding. Purpose of this study, discrete wavelet transform technique is used to diagnose stator inter-turn short circuit fault in permanent magnet synchronous motor. In this study, stator current in healthy and two different fault conditions was evaluated. Variation of the detail components of the stator current obtained by the wavelet analysis according to the stator short circuit fault intensity was investigated. Stator phase currents d5, d6, d7, d8 and d9 detail coefficients in the frequency band by looking at the change in the average peak amplitude stator winding has been found to contain information about the occurrence of a short circuit fault.
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