Performance enhancement of multilevel inverter fed induction motor drive using improved circuit topologies and modulation techniques

Abstract

Electrical utility system requires electrical power to be supplied newlinemeeting proper quality requirements that is within the specified range around newlinethe rated value The quality of electrical power has become an important issue newlinefor the consumers because power quality disturbances degrade the newlineperformance of the connected loads The power quality prescribes the limits newlineon the frequency magnitude waveform shapes and symmetry of phase newlinevoltages from no load to full load variations of the supply Power quality gets newlineaffected due to harmonics notches outages flicker swell sags and newlinetransients The important power quality problem is harmonics which can newlineseverely degrade the performance of the modern machineries and utilities newline newline