Simulation Analysis of Three Phase & Line to Ground Fault of Induction Motor Using FFT

This paper represents the simulation analysis of induction motor drive system. Main objective of this paper is analysis of three phase and line to ground fault of induction motor and harmonic analysis. For control of induction motor number of pulse width modulation scheme are used to for variable voltage and variable frequency supply.  Variable frequency Voltage Source Inverters (VSI's) are widely used to control the speed of three phase squirrel cage Induction Motors (IM) over a wide range by varying the stator frequency. In particular the VSI's are widely preferred in industries for individual medium to high power variable speed drive systems, driving a group of motors connected in parallel at economic costs. Here present modeling and simulation of induction motor drive in MATLAB/SIMULINK software. The results of total harmonic distortion (THD), fast Fourier transform (FFT) of motor current obtained in MATLAB/Simulink software.