STEADY-STATE AND TRANSIENT-BEHAVIOR OF PWM INVERTER FED INDUCTION-MOTORS
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In this paper analytical and experimental investigation on steady state and translent behavior of an induction motor fed from nonsinusoidal power supplies is presented. The analytical investigations are based on a direct three phase model developed for this purpose. Simulation procedure for computing the exact nature obtained from a pulse width modulated (PWM) inverter is described. Transient studies exhibiting the effects of specific PWM pattern changing on the induction motor are outlined. The ability of the developed model to represent faulty inverter conditions such as single phasing is described and analyzed. Finally, key results are verified experimentally on a PWM inverter fed induction motor. 1989 by Hemisphere Publishing Corporation.