Abstract

Sensorless control for electric drives are preferably used due to its smaller size and cost effectiveness. This technique is basically used for the estimation of motor speed using control algorithm. For this purpose, the paper features a unique speed estimation technique using model reference adaptive system (MRAS) based on rotor flux for a better functioning induction motor based drives. Performance analysis of speed estimator with the change in motor parameters is presented. Furthermore, the performance speed estimator for faulty state is additionally examined. Design and performance evaluation of sensorless control scheme has carried out on Matlab/Simulink.

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