SIMULATION & DEVELOPMENT OF INVERTER FED THREE PHASE INDUCTION MOTOR USING V/F CONTROL STRATEGY

Abstract

Amongst all electrical motors, induction motors are the most widely used motors due to their reliability, low cost and robustness. Out of the several methods of speed control of an induction motor, constant V/f speed control method is most widely used due to its simplicity. In this method, the V/f ratio is kept constant which in turn maintains the magnetizing flux constant so that the maximum torque remains unchanged. Thus, the motor is completely utilized in this method. This paper presents the simulation and implementation of three Phase inverter fed induction motor drive by using 89c52 microcontroller. The proposed drive system for three Phase inverter is simulated using MATLAB/Simulink software. For simulation, the gating pulses of inverter are generated. The hardware implementation of three phase inverter is also done and proved that the experimental results are same as that of simulation results