JEE_V5_N1_RP3 C. Kamal Basha M. Suryakalavathi Journal on Electrical Engineering 2230 – 7176 5 1 21 26 Fuzzy Controller, Induction Motor, Vector Control, Model Reference Adaptive System, PI Controller This paper presents a speed sensorless Fuzzy based Indirect field oriented control using stator current based model reference adaptive system for the induction motor drive. Indirect Field Oriented Control (IFOC) is highly sensitive to the parameter variation and accuracy of the estimated speed. To fix the problem the traditional PI controller which converts the error speed signal in to torque signal is replaced by a fuzzy controller for increasing the dynamic response of the drive. The speed sensorless of the drive is achieved by the stator current based Model Reference Adaptive System (MRAS). In this MRAS measured stator current is considered as a reference model and is compared with the estimated stator current using the stator voltage-current model, and then adjusted with the estimated rotor speed calculated by the adaptation algorithm. The satisfactory results are obtained by the MATLAB simulation. July - September 2011 Copyright © 2011 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=1554