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OBSERVATION ET COMMANDE DE LA MACHINE ASYNCHRONE SANS CAPTEUR MÉCANIQUE

Abstract : This work mainly addresses the problem of nonlinear observer and controller for induction motor without mechanical sensor. The first part is dedicated to observabilty problem of induction motor. We have established that induction motor becomes unobservable when it operates at very low speed without mechanical sensor. In this framework two benchmarks "Observer Benchmark" and "Control Benchmark" are defined. The benchmarks aim is to test and validate the performances of the observers and controllers without mechanical sensor particularly under unobservable conditions. In the second part, the design of nonlinear observers (software sensors) for induction motor without mechanical sensor is adressed. These observers allow to replace the information given by mechanical sensor by using only currents measurements. The last part is dedicated to the design of a nonlinear controller for induction motor. This controller is associated to a speed observer to get a nonlinear controller without mechanical sensor of induction motor. The observers and the law control are tested and validated with our benchmarks against the experimental set-up located at IRCCyN.
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https://tel.archives-ouvertes.fr/tel-00117094
Contributor : Malek Ghanes <>
Submitted on : Thursday, December 13, 2007 - 3:45:06 PM
Last modification on : Wednesday, December 19, 2018 - 3:02:04 PM
Long-term archiving on: : Friday, November 25, 2016 - 8:44:29 PM

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  • HAL Id : tel-00117094, version 2

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Malek Ghanes. OBSERVATION ET COMMANDE DE LA MACHINE ASYNCHRONE SANS CAPTEUR MÉCANIQUE. Automatique / Robotique. Ecole Centrale de Nantes (ECN); Université de Nantes, 2005. Français. ⟨tel-00117094v2⟩

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