Simulation of V/F control of induction motor drive

Abstract

This paper presents the basic V/f control of 3 phase induction motor drive with the help of computer
simulation. The speed control of induction motor can be achieved by varying the applied voltage magnitude or
changing the frequency of the excitation. Out of the various methods of controlling the speed of Induction motors, V/f
Control has proven to be the most versatile.The V/f Control Method requires the Pulse Width Modulated Controlled
Inverter. The rectifier is also required for the conversion of fixed frequency AC into the DC voltage. In this paper the
open loop V/f Simulink Model is developed and analyzed. The uncontrolled transient and steady state response of the
Induction Motor has been obtained and analyzed.