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Speed Control by Sliding Mode of Synchronous Motor

Bahi, T.
Lachtar, S.
Soufi, Y.
Lckhchine, S.
Merabet, H.
This paper presents the results of a simulation for synchronous motor speed control using a Direct Torque Control (DTC). This technique was object of a deep study for synchronous motor drives instead of precise closed loop speed control. However, this technique presents some problems such as, high influence of the motor parameters. The sliding mode controller is a model-based approach used to improve the robustness of the control law despite this influence and to illustrate the good performance of this technique.