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COMMANDE NON LINEAIRE SANS CAPTEUR DE LA MACHINE SYNCHRONE A AIMANTS PERMANENTS

Abstract : The permanent magnet synchronous motor when compared to other electric machines, is very present in motion control industrial applications. This is mainly because of its compactness, low inertia, dynamics performances, robustness, power density and simplicity of operation with mechanical sensor. However, sensorless control of this machine is always a difficult problem because of the observability loss problem. The aim of this thesis is to propose control laws for mechanical sensorless permanent magnet synchronous machine. Several observers, including a two order sliding mode observer (one based on the EMF and the other based on the full model), a super-twisting observer and an adaptive observer interconnected, were developed. Several nonlinear control laws were designed: higher order sliding mode control with pre-determined trajectory, sliding mode higher-order quasi-continuous and backstepping control. The overall stability of the whole "Command + Observer" was shown in each case. Each case has also been validated on the benchmark "Control without mechanical sensor" of the Inter-GDR group "Control of Electrical Systems".
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https://tel.archives-ouvertes.fr/tel-00625786
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Submitted on : Thursday, September 22, 2011 - 4:23:21 PM
Last modification on : Wednesday, December 19, 2018 - 3:02:03 PM
Long-term archiving on: : Friday, December 23, 2011 - 2:30:16 AM

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Marwa Ezzat. COMMANDE NON LINEAIRE SANS CAPTEUR DE LA MACHINE SYNCHRONE A AIMANTS PERMANENTS. Automatique / Robotique. Ecole Centrale de Nantes (ECN), 2011. Français. ⟨tel-00625786⟩

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