Velocity Organize of 3-Phase Squirrel Cage Induction Motor by 3-Phase AC Voltage Manager using SPWM Method

This paper are conclude by speed control of squirrel cage 3- phase induction motor by 3-phase AC voltage controller along with SPWM technique, AC controllers are thyristor based devices, which convert fixed alternating voltage without a change in the frequency. SPWM (Sinusoidal PWM) is a type of “carrier-based� pulse width modulation. In sinusoidal PWM, the modulation signal is sinusoidal, with the peak of the modulating signal always less than peak of the carrier signals. The AC voltage controller are makes use of line commutation and as such no complex commutation circuitry is required in this controller. The controller of the easy to comparison of the other controller. The main application of this model is winders, fan drives, domestic pumps, industrial heating and lighting control. Simulation is carried out by using MATLAB and programming for firing of SCR is done by using MALTAB simulink model.