SENSORLESS INDUCTION MOTOR DIRECT TORQUE CONTROL BASED ON MODEL REFERENCE ADAPTIVE SYSTEMS | ||||
| ERJ. Engineering Research Journal | ||||
| Article 7, Volume 37, Issue 3, July 2014, Page 315-321 PDF (756.48 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2014.66933 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Hamid M.B. Metwally; Sameh I. Selem; Alhassan H.M. Alattar | ||||
| Department of Electrical power and machines, Faculty of Engineering, Zagazig University | ||||
| Abstract | ||||
| The classical direct torque control (DTC) system of three phase induction motor suffers from many drawbacks such as the need for motor speed sensor, flux and torque ripples, and constancy of the stator resistance in the DTC controller. In this paper a sensorless system based on Model Reference Adaptive System (MRAS) is designed to estimate the rotor speed without using encoder. The classical and MRAS systems are compared. Computer simulation proves the effectiveness and robustness of the proposed MRAS for estimating the motor speed over the classical one. | ||||
| Keywords | ||||
| Induction motor; Direct torque control; Model reference adaptive system | ||||
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