Harmonic analysis of CSI-fed induction motor drive

This paper presents simulation results of the harmonics analysis of motor current signatures under different fault condition of CSI (Current Source Inverter) fed induction motor drive. In this work, simulation studies are performed for three different post fault conditions i.e. open circuiting of one of the six IGBTs(Insulated Gate Bipolar Transistor) gate, blowing off one IGBT and line to ground fault at one of the motor phase terminals. Under these fault conditions, time domain and frequency domain analyses are performed. The simulation results are presented.