Fuzzy Logic based MRAS Speed Estimator with Rotor Resistance Adaptation Mechanism for Induction Motor Drive

摘要

Due to prodigious application of induction motor, heuristic investigation of its control mechanism is must. The main focus of this paper is to investigate the speed of sensorless vector controlled induction motor drive. A rotor flux (RF) based Model Reference Adaptive System (MRAS) with rotor resistance adaptation mechanism is used for speed estimation. Conventional PI controller and fuzzy logic controller in conjunction with MRAS are used for speed estimation and subsequent comparisons of the results. The drive is simulated in MATLAB software and tested for different operating conditions.