Abstract
This paper presents one of the most successful method controllers of 3-phase squirrel-cage IM motor which is employing V/F method with application of pulse width modulation (PWM), this dynamic model is implemented using Mat Lab simulation program. The improved techniques of suggested model presents high performance of improving the starting characteristics (starting current , starting torque) of the double comparison with single-cage IM using PWM techniques at constant V/F control. Simulation results refers to the characteristics of double-cage better than single cage and shows that the satisfy performance and good response of this model.
