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Synthèse de Lois de Commande à Gains Programmés pour la Stabilisation en Roulis des Navires

Abstract : Roll stabilisation systems used on board of many ships are based on fins moved by a control law. These control laws are commonly parametrised on ship speed, but do not take into account the variations of the environmental conditions : wave propagation direction, wave height and wave period. The use of this information is to raise performances of ships. The first part of this thesis details the model for roll dynamics used in the sequel. The second part addresses control law calculation: first, a methodology for control law tuning is proposed. This methodology is based on the interpretation of specifications as a multi-objective optimisation problem. The second stage leads to a gain-scheduled control law. It is built as a polytopical controller, and computed through the resolution of LMIs. The varying parameters are the ship speed and a stabilisation quality factor. Control law are tested in simulation.
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https://tel.archives-ouvertes.fr/tel-00109896
Contributor : Hervé Tanguy <>
Submitted on : Wednesday, October 25, 2006 - 8:54:16 PM
Last modification on : Wednesday, December 19, 2018 - 3:02:02 PM
Long-term archiving on: : Tuesday, April 6, 2010 - 9:01:09 PM

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  • HAL Id : tel-00109896, version 1

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Hervé Tanguy. Synthèse de Lois de Commande à Gains Programmés pour la Stabilisation en Roulis des Navires. Automatique / Robotique. Ecole Centrale de Nantes (ECN), 2004. Français. ⟨tel-00109896⟩

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