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Academic literature on the topic 'Inégalités Matricielles Linéaires (LMI)'
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Dissertations / Theses on the topic "Inégalités Matricielles Linéaires (LMI)"
Kang, GuoDong. "Géolocalisation en intérieur opportuniste à base d'inégalités matricielles linéaires." Toulouse, ISAE, 2010. http://www.theses.fr/2010ESAE0016.
Full textPagès, Olivier. "Etude et comparaison de différentes structures de commande multi-contrôleurs : application à un axe robotisé." Chambéry, 2001. http://www.theses.fr/2001CHAMS011.
Full textKruszewski, Alexandre. "Lois de commande pour une classe de modèles non linéaires sous la forme Takagi-Sugeno : mise sous forme LMI." Valenciennes, 2006. https://ged.uphf.fr/nuxeo/site/esupversions/47cd2183-0e4c-4bc8-b7b8-591ffb66d847.
Full textThis PhD thesis deals with a particular class of nonlinear models called Takagi-Sugeno. In spite of their fuzzy background, they can be seen as a collection of linear models blended by some nonlinear functions. The stability analysis of this kind of models is investigated through the direct Lyapunov method and using a quadratic function. This choice is due to its capability to cope with LMI constraints. These conditions are only sufficient. Many results are available for these models. The first works were dealing only with stability and stabilization without any robustness criterion or performances indexes. Extensions are available on state feedback with observer, descriptor models, uncertain models, models with delays, dynamic output feedbacks… Some performances criteria are also considered as the minimization of quadratic criterion, D-Stability, Hinf…In spite of these results, some problems need to be solved. The quadratic Lyapunov function approach seems to have reached its limit. Considering that the conditions are only sufficient, what can be done if they are too restrictive? How to relax a LMI problem which has no solution? The goal of this thesis is to quit the quadratic framework by proposing less conservative results than those met in the literature
Magarotto, Eric. "Approche LMI pour la synthèse de correcteurs et d'observateurs : application aux systèmes spatiaux et bilinéaires." Nancy 1, 1999. http://www.theses.fr/1999NAN10033.
Full textThe growing power and popularity of LMI rnethods for control yield to consider the control design problem as a multiobjectives optimization one. The growing evolution of aerospace activities and the flexibility of its structures require more and more constraining robustness and performance specifications. In face of this growing complexity, we turn to the use of generical LMI-based algorithms, taking into account the poor conditionning of such systems. To treat this kind of specifications, we use a mixed H2/H[infini] output feedback control for both continuous and dis crete time linear systems. To facilitate its implementation, an arder reduction of the obtained controller is then realized. This thesis work was realized under a collaboration between Matra Marconi Space and the CNES, and applied to the line sight and attitude control of a telecommunication satellite
Dinh, Marc. "Synthèse dépendant de paramètres par optimisation LMI de dimension finie : application à la synthèse de correcteurs reréglables." Caen, 2005. http://www.theses.fr/2005CAEN2040.
Full textZerrougui, Mohamed. "Observation et commande des systèmes singuliers non linéaires." Electronic Thesis or Diss., Nancy 1, 2011. http://www.theses.fr/2011NAN10143.
Full textThis thesis work is realized in the Research Center in Automatic Control of Nancy (CRAN). It concerns the observation and control of nonlinear singular systems. Firstly, we were interested in the observer design and H infinity filtering for singular bilinear systems. In a second step, we studied the observers design for Lipschitz nonlinear singular systems. The last part of this work relates to the stabilization and observer based controller for a classe of singular nonlinear systems. The objective is to develop a simple and straightforward results which covers a large class of nonlinear systems. The main contribution of this thesis is in the H infinity observers design for nonlinear singular systems. It is based on the parametrization of the solution of the constrained generalized Sylvester equation. The second contribution relates to the design of stabilizing control and using the proposed observer to design an obsever based controller for nonlinear singular systems. Solutions of these problems are obtained by using Linear Matrix Inequalities (LMI) Formulation
Mohite, Shivaraj. "Observer Design for Nonlinear Systems using LMI Relaxation Techniques." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0326.
Full textOver the last three decades, observer design for dynamical systems has emerged as a pivotal topic in the control system domain. This is a consequence of the fact that observers are used to collect real-time information about the systems, monitor the systems, control the system, and make decisions. The LMI-based observers have garnered considerable attention among the various established observer methodologies. The thesis predominantly deals with the design of the LMI-based observers for the Lipschitz nonlinear systems. One of the valuable contributions of this thesis is the establishment of more generalized matrix-multiplier-based LMIs. These LMI conditions are derived through the utilization of reformulated Lipschitz property, Young inequalities, and newly defined matrix multipliers. Further, an LMI-based H_∞ observer is designed to estimate the states of the nonlinear systems under the presence of disturbances/noise by using the previously defined matrix multipliers. The proposed LMIs contain additional numbers of decision variables as compared to the existing approaches, which add extra degrees of freedom thus improving their feasibility. The effectiveness of the developed approach is validated through numerical examples. This new matrix-multiplier-based LMI approach is extended for the state estimation for a class of non-globally Lipschitz nonlinear systems under the effect of noise/disturbances. It is achieved by deploying the Hilbert projection-based observer structure. The novel LMI condition is established to ensure the ISS behaviour of the state estimation error of the proposed observers. Furthermore, the proposed matrix-multiplier-based LMI approach is exploited for the stabilization of the disturbance-affected nonlinear systems using the observer-based controller. The judicious implementation of the matrix-multiplier-based LMIs made it possible to obtain less conservative LMI conditions than existing LMI methods in the literature. Finally, all these developed LMI-based observers are used in the autonomous vehicle area for various tasks, such as longitudinal state estimation, slip angle estimation, and so on to validate their performances
Zerrougui, Mohamed. "Observation et commande des systèmes singuliers non linéaires." Phd thesis, Université Henri Poincaré - Nancy I, 2011. http://tel.archives-ouvertes.fr/tel-00705339.
Full textCugnet, Mikael Georges André. "Intégration du vieillissement à la gestion d'une batterie plomb automobile." Bordeaux 1, 2008. http://www.theses.fr/2008BOR13583.
Full textAmmari, Sami. "Interaction des dispositifs FACTS avec les charges dynamiques dans les réseaux de transport et d'interconnexion." Phd thesis, Grenoble INPG, 2000. http://tel.archives-ouvertes.fr/tel-00688618.
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