Publications

Abstract : This paper presents the model of direct torque and flux control of an induction motor drive (IMD) with PI replaced by Fuzzy logic controller (FLC). Direct torque control (DTC) of an induction motor drive is an excellent method to control the flux and torque of an induction motor to settle at a zone. But the major drawback of the DTC is that the torque ripple is high. The major area of research under DTC is to reduce the ripple of torque using various methods such as using 12 sectors, using fuzzy controller, using Artificial neural networks algorithm, using genetic algorithm, etc.. In this paper a fuzzy logic model is proposed that had replaced PI where fuzzy completely focuses on reducing the ripple in torque. Here both such models (classical as well as fuzzy) models are simulated using MATLAB/SIMULINK and the results are compared. The proposed technique had shown better results than compared to the classical model.