Title :
Diagnostic of a Faulty Induction Motor Drive via Wavelet Decomposition
Author :
Ponci, Ferdinanda ; Monti, Antonello ; Cristaldi, Loredana ; Lazzaroni, Massimo
Author_Institution :
South Carolina Univ., Columbia
Abstract :
An approach to the analysis of ac side current is presented for the purpose of identification of faults in the stator phase resistance of an ac induction motor drive. The method relies on the correlation between wavelet decomposition coefficients of the current in healthy and faulty conditions. The findings highlight that the fault causes waveform variations that are localized at specific decomposition levels. The presented approach may open the way to efficient training for fault recognition systems.
Keywords :
fault diagnosis; induction motor drives; wavelet transforms; ac induction motor drive; ac side current; fault diagnosis; fault recognition systems; faults identification; faulty induction motor drive; stator phase resistance; wavelet decomposition; Circuit faults; Electrical fault detection; Fault diagnosis; Induction motor drives; Signal processing; Stators; Vibration measurement; Wavelet analysis; Wavelet domain; Wavelet transforms; Diagnostic; measurements; pattern recognition; testing; wavelet transform;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2007.907943
