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Journal of Applied Sciences
  Year: 2007 | Volume: 7 | Issue: 21 | Page No.: 3177-3186
DOI: 10.3923/jas.2007.3177.3186
 
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Adaptative Variable Structure Control for an Online Tuning Direct Vector Controlled Induction Motor Drives

Sbita Lasaad, Zaltni Dalila and Abdelkrim Mohamed Naceurq

Abstract:
This study demonstrates that high performance speed control can be obtained by using an adaptative sliding mode control method for a direct vector controlled Squirrel Cage Induction Motor (SCIM). In this study a new method of designing a simple and effective adaptative sliding mode rotational speed control law is developed. The design includes an accurate sliding mode flux observation from the measured stator terminals and rotor speed. The performance of the Direct Field-Orientation Control (DFOC) is ensured by online tuning based on a Model Reference Adaptative System (MRAS) rotor time constant estimator. The control strategy is derived in the sense of Lyapunov stability theory so that the stable tracking performance can be guaranteed under the occurrence of system uncertainties and external disturbances. The proposed scheme is a solution for a robust and high performance induction motor servo drives. Simulation results are provided to validate the effectiveness and robustness of the developed methodology.
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How to cite this article:

Sbita Lasaad, Zaltni Dalila and Abdelkrim Mohamed Naceurq, 2007. Adaptative Variable Structure Control for an Online Tuning Direct Vector Controlled Induction Motor Drives. Journal of Applied Sciences, 7: 3177-3186.

DOI: 10.3923/jas.2007.3177.3186

URL: https://scialert.net/abstract/?doi=jas.2007.3177.3186

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