Zastosowanie modelu polowo-obwodowego do monitorowania ekscentryczności silników indukcyjnych

In the paper problems of detection and evaluation of the air-gap eccentricity in induction motor drive are presented. The possibility of monitoring and diagnostic of the non-central mounting rotor in the stator are presented. The application of stator current spectrum analysis to induction motor condition monitoring is discussed. The spectral frequencies typical for eccentricities occurring in the stator current are presented. The field-circuit model are used to simulation the stator current. Fast Fourier Transform analysis of stator current to the eccentricity monitoring are obtained to diagnostic patterns. The simulation results confirm the efficiency of the proposed method to the diagnostic of the induction motor drive.