Z CONVERTER CONTROL OF A V/F INDUCTION MOTOR DRIVE USING SINE PWM

Abstract

In this paper author has implemented speed control of an induction motor fed by sine pulse width modulation (PWM) on Psim software. Z source inverter (ZSI); is used to convert DC to AC supply and the control loop V/F control strategy. API controller is used inherently for controlling the shoot through time interval from the z source capacitor voltage error. The various parameters are plotted using PSIM simulation software and results are demonstrated on the 1.8KW induction motor connected from ZSI from 5Hz to 75Hz. The various simulation results are plotted during startup, input voltage change and load disturbance are plotted.