JEE_V6_N4_RP2 Sudheer Kodad S.F. Sarvesh B. Journal on Electrical Engineering 2230 – 7176 6 4 14 21 DTFC, Fuzzy Logic, Fuzzy PI Speed Regulator, Membership Function (MF), Fuzzy Controller, Switching Table Classical DTC has inherent disadvantages such as: problems during starting resulting from the null states, the compulsory requirement of torque and flux estimators, and high torque ripple. In this paper classical DTC, Fuzzy DTFC along with Fuzzy logic based speed controller are designed and their results are compared. Classical DTC is improved by means of Fuzzy logic using 180 fuzzy rule base which eliminates hysterisis controllers and shows improved performance compared to classical DTC. The Classical DTC with PI type speed regulator results in high Torque and Flux ripples due to nonlinearity. In Fuzzy Logic DTFC torque and flux linkage hysterisis loop controller are eliminated and the transient and steady state performance of drive is improved due to fuzzy PI speed regulator. The improved performance and effectiveness of proposed method Fuzzy DTFC with Fuzzy Speed controller is evaluated through digital simulation using Matlab-Simulink. April - June 2013 Copyright © 2013 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=2323