Eccentricity Fault diagnosis in PMSM using Motor Current Signature Analysis

This work deals with the modeling and the diagnosis of Permanent Magnet Synchronous Motor (PMSM) with consideration of all space harmonics. To do this, a mathematical model based on the approach of the winding function has been developed in the case of a constant air gap, then in the other case where the machine may have an eccentricity fault. To highlight the interest of the model employed and the efficiency of the spectral analysis technique of the stator current, a series of simulations are performed in both cases of operation: healthy and in the presence of the eccentricity fault.