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Contribution à la commande sans capteur de la machine asynchrone

Abstract : This research deals with the velocity estimation and control of induction machine without mechanical sensor, particularly when the machine operates at low or zero speed. After an overview of the state of art in the estimation of velocity of induction machine, we have chosen the method based on the injection of a high frequency signal in induction machine with saliencies. The origin of these saliencies and the resulting current components due to the high frequency signal injection are studied in different reference frames. The signal processing aspects are investigated. We explain all the essential stages to extract induction machine position and velocity. We have studied several filtering systems, sliding DFT analysing and velocity estimation using phase locked loop. Finally, the feasibility of sensorless vector control is considered. Several simulation and experimental results are presented to confirm theoretical studies.
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Submitted on : Thursday, March 29, 2018 - 10:44:55 AM
Last modification on : Wednesday, August 19, 2020 - 3:56:24 PM

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  • HAL Id : tel-01746792, version 1



Imad Al-Rouh. Contribution à la commande sans capteur de la machine asynchrone. Autre. Université Henri Poincaré - Nancy 1, 2004. Français. ⟨NNT : 2004NAN10032⟩. ⟨tel-01746792⟩



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