Comparision betweeen symmetric & new model asymmetric Z-source cascaded multilevel inverter fed IM for selective harmonic minimization & THD reduction with PV Cell input

Abstract

This work deals with a new hybrid multilevel inverter with Z-source converter fed induction motor drive which focuses on asymmetrical topologies. This work approximates the reduction of total harmonic distortion and selective harmonic minimization using new model asymmetric cascaded multilevel inverter by PWM technique using MATLAB/SIMULINK. The switching angles are mathematically calculated. This method provides a lower total harmonic distortion and lower order harmonics are minimized drastically. The input for the inverter is boosted using Z-source converter & the input for converter is from PV. This is able to perform in real time (50-60-Hz time window).