A Study on the High Performance Driving of Variable Speed Control for Induction Motor used Microprocessor

마이크로 프로세서에 의한 가변속 유도 전동기의 고효율 운전에 관한 연구

This paper describes a new pwm scheme of variable speed control for induction motor. The proposed scheme have the programmed pwm switching pattern which have the doninant harmonic elimination over the wide range of output speed in induction motor. Experimental results of proposed scheme hare high quality output current, voltage and torque than that of conventional pwm scheme. Therefore proposed scheme have the smooth operation and suitable for variable speed control in induction motor.