Five-phase induction motor drive system with inverter output LC filter

Abstract

In this paper, a five-phase induction motor drive system supplied using a PWM Voltage source Inverter (VSI) with output LC filter is discussed. The design and performance of drive system with LC filter connected at the output terminals of the PWM inverter is elaborated. The purpose of the filter is to eliminate both high-frequency harmonics of the voltage and current waveforms from the five-phase output voltages of the inverter, reduce the Total harmonic distortion (THD) and smoothing the voltage and current waveforms. Comparison is done between three-phase and five-phase induction motor drive with and without LC filter. The paper shows the simulation results using the MATLAB/SIMULINK of the three-phase and five-phase induction motors before and after adding the LC filter at the output of VSI. Experimental results for Five Phase drive system with LC Filter is presented to validate the simulation results.