Stator current demodulation for induction machine rotor faults diagnosis

El Houssin El Bouchikhi (1, 2) , Vincent V. Choqueuse (2) , Mohamed Benbouzid (2) , Jose A. Antonino-Daviu (3)

1 LABISEN-ESE - Energie et Systèmes Electromécaniques
2 LBMS - Laboratoire brestois de mécanique et des systèmes
3 Universitat Politecnica de ValenciaCMT-Motores TermicosCamino de Vera s/n46022 ValenciaSpain

Several studies have demonstrated that induction machine faults introduce phase and/or amplitude modulation of the stator currents. Hence, demodulation of the stator currents is of high interest for induction machines faults detection and diagnosis. The demodulation techniques can be classified into mono-dimensional and multi-dimensional approaches. The monodimensional techniques include the synchronous demodulator, the Hilbert transform, the Teager energy operator and other approaches. The multi-dimensional approaches include the Concordia transform and the Principal Component Analysis. Once the demodulation has been performed, demodulated signals are further processed in order to measure failure severity. In this paper, we present a comprehensive comparison of these demodulation techniques for eccentricity and broken rotor bars faults detection.

Mots clés: Induction machine; eccentricity faults; broken rotor bars; diagnosis; stator currents; signal demodulation

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]; Energie électrique

El Houssin El Bouchikhi, Vincent V. Choqueuse, Mohamed Benbouzid, Jose A. Antonino-Daviu. Stator current demodulation for induction machine rotor faults diagnosis. International Conference on Green Energy 2014, Mar 2014, Sfax, Tunisia. pp.176 - 181, ⟨10.1109/ICGE.2014.6835418⟩. ⟨hal-01015474⟩