Abstract: Pulse width modulation based variable speed drives are widely used in industrial applications. Recent development in power electronics and semiconductor have lead to improvements in power electronic systems. A number of pulse width modulation (PWM) schemes are available to vary the voltage and supply frequency of the machine in order to vary the speed of induction machine. This paper presents a three phase voltage source inverter to control the speed of an induction machine. By varying the stator terminal voltage from voltage source inverter speed control can be achieved. Simulation results are obtained using MATLAB/SIMULINK environment for the effectiveness of the study.
Keywords: Induction Motor, PWM, Voltage source Inverter, Speed Control.