Minimization of Current Ripple in Inverter Fed $3{\phi}$ I.M. Drive System

인버터 구동 유도기 계의 전류맥동저감에 관한 연구

All Inverter fed induction motor systems which the switching patterns are determined by the approximated sinusoidal modulation techniques have many troublesome problems such as the current ripple duing to harmoic components. Therefore, in this paper, the current and torque pulsations for a inverter fed induction motor drive system are analyzed and specified theoretically and the determination techniques of optimal switching patterns for minimization of these factors are presented. Also, these simulation results are compared to the ones obtained from the realized experimental system by one-chip microcomputer, 8751.