Fail-safe digital implementation of indirect field oriented controlled induction motor drive

Abstract

The aim of this paper is to present a full-digital implementation of indirect field oriented controlled (IFOC) induction motor drive with a personal computer (PC) and as much standardized hardware as possible. The complex functions required by IFOC induction motor drive have been executed by PC on line. Computer simulations of the IFOC induction motor drive with tuning rotor resistance have been carried out to test the validity of the proposed method at nominal and zero speed. For the experimental prototype, we use a current regulated-pulse width modulated-voltage source inverter (CR-PWM-VSI) fed induction motor drive. Experimental results of the IFOC induction motor drive obtained on a PC-based system are presented.