Dissertations / Theses on the topic 'Commande automatique – Commande, Théorie de la'
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Rominger, Claude. "Extension temporelle des machines à états finis : application à l'analyse des aléas dans les systèmes séquentiels structures asynchrones." Toulouse, INSA, 1995. http://www.theses.fr/1995ISAT0017.
Full textRaczy, Côme. "Commandes optimales en temps pour des systèmes différentiellement plats : application aux commandes de satellites et de grues." Lille 1, 1997. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/1997/50376-1997-55.pdf.
Full textBahman, Zeinal Zadeh. "Commande numérique pour la conduite automatique d'un applicateur micro-onde : amélioration du rendement énergétique." Toulouse, INPT, 1987. http://www.theses.fr/1987INPT076H.
Full textMarchand, Nicolas. "Commande à horizon fuyant : théorie et mise en oeuvre." Grenoble INPG, 2000. http://www.theses.fr/2000INPG0015.
Full textChable, Stéphanie. "Vers des correcteurs réduits robustes à des variations paramétriques." Toulouse, ENSAE, 2003. http://www.theses.fr/2003ESAE0015.
Full textHérail, Olivier. "Commande optimale d'ordre réduit : application au pilotage automatique longitudinal d'un avion de transport." Toulouse, ENSAE, 1986. http://www.theses.fr/1986ESAE0011.
Full textGarnero, Marie-Agnès. "Commande adaptative à petit pas de temps : Théorie et application sur un four électrique." Ecully, Ecole centrale de Lyon, 1990. http://www.theses.fr/1990ECDL0030.
Full textGuesmi, Kamel. "Contribution à la commande floue d'un convertisseur statique." Reims, 2006. http://theses.univ-reims.fr/exl-doc/GED00000564.pdf.
Full textDC-DC power converters are electronic systems characterized by cyclic switching of circuit topologies. Despite their simple schemes, these converters exhibit a variety of non linear bahaviors. This makes it difficult to analyse the system and predict its behavior. To study these behaviors, discrete modeling techniques use hypothesis and constraints on the system operating or control modes to simplify the modelling task. In this thesis, some enhancements of the discrete modelling approach are proposed to alleviate these constraints and to better describe these behaviors without any simplifying assumption. Controllers developed for a converter are generally based on its mathematical model. Therefore, the large variation of the converter parameters can affect the control performances. In the case of fuzzy logic controllers, control parameters can vary according to the system parameters variation. Therefore, we proposed a systematic approach for synthesizing a fuzzy logic controller, in order to suppress the abnormal phenomena exhibited by the converter and to uphold the regulation performances in a wide range of the system parameters variation
Ourth, Thierry. "Commande vectorielle d'un moteur asynchrone sans capteur de vitesse : observateur déterministe de flux rotorique." Toulouse, INPT, 1995. http://www.theses.fr/1995INPT128H.
Full textDjouani, Karim. "Contribution à la commande dynamique des navires. Commande optimale non-linéaire et réseaux de neurones artificiels." Paris 12, 1994. http://www.theses.fr/1994PA120043.
Full textBrière, Yves. "Téléopération en présence de retard : le concept de téléopération hybride duale." Toulouse, ENSAE, 1994. http://www.theses.fr/1994ESAE0021.
Full textBouazza, Kheir-Eddine. "Commande basée sur des observateurs pour les systèmes non-linéaires en temps discret." Nancy 1, 2004. http://www.theses.fr/2004NAN10171.
Full textResearch activities presented in this thesis concerne the stabilisation, with obserber-based controllers, of discrete-time nonlinear systems. The approach which we proposed doesn't require a particular structure of the output contrary to the methods based on the the passivity theory. Unlike the jurdjevic-quinn method, it doesn't need the stability of the free dynamics. A lyapunov function common to a great number of systems is used for the analysis of stability. Moreover it has the advantage of being simply implementable. Using the results established previously, synthesis of a control law based on an extended kalman observer was given. The third section presents an observer based controller which stabilizes globally exponentially a class of nonlinear systems. An extension to delay systems was established. In the last section, we present a simple conditions in linear matrix inequalities form, which stbilizes asymptotically a large class of delay nonlinear systems. Some other conditions allowing the synthesis of observers for different classes of nonlinear systems were presented
Magne, Laurent. "Commande optimale décentralisée du trafic urbain." Toulouse, ENSAE, 2001. http://www.theses.fr/2001ESAE0001.
Full textRemaud, Patrice. "Une histoire de la genèse de l’automatique en France 1850-1950." Paris, CNAM, 2004. http://www.theses.fr/2004CNAM0466.
Full textAutomatic control appeared in France after second World War. However, the history of the regulation techniques shows that it has existed since the beginning of the 19th century a school of the regulation in France. This school was remarkable but it left behind few remembers. Second World War represents a rupture in all the domains of French scientific research. The cooperation at the end of the 1940’s between the members of the French school of regulation and the young engineers of the armament and telecommunications led to the development of French automatic control during the 1950’s. The first part of this thesis proposes a brief presentation of the general history of automatic control. The second part deals with the study of the french school of regulation. It has been progressively created during the 19th century around the problems posed by the use of the Watt governor. The third part is devoted to some scientific events that contributed to the emergence of the automatic control in France after second World War
Abelli, Andrea. "Commande pour l'optique adaptative : du cas linéaire au cas non linéaire." Thesis, Nice, 2013. http://www.theses.fr/2013NICE4019.
Full textHis thesis investigates the control aspects of Adaptive Optics applications, a technology used to improve the performance of optical systems by reducing the effect of wavefront distortions, to high angular resolution imaging. The Adaptive Optics control problem is presented through a survey of the literature. Consequently, the design of a feedback controller is addressed, from a modern control point of view, by means of the Linear Quadratic Gaussian control methodology. The proposed approach emphasizes the ability of the adaptive optics loop to reject the atmospheric aberration. We derive a diagonal state-space system representation which clearly separates the dynamics of the plant (deformable mirror and wavefront sensor) from the disturbance dynamics (atmospheric model). This representation facilitates the numerical resolution of the problem. A frequency analysis is carried out to check the performance and robustness specifications of the multiple-input multiple-output feedback system. Moreover, we analyze the performance and the robustness of LQG-based control compared to classic integral control, by means of end-to-end simulations and by considering different levels of wavefront sensor noise. During on-sky observations, the turbulent energy and relative speed of each atmospheric layer can change rapidly degrading the wavefront estimate. For this reason, a numerical model design algorithm guaranteeing satisfactory disturbance rejection performance even in the case of time-varying turbulence's characteristic is derived. Numerical experiments using the Software Package CAOS have been conducted to demonstrate the robustness of every proposed approach. Given the author firm belief that the future of Adaptive Optics also relies on the development of more sophisticated (i.e., nonlinear) models, a substantial amount of work was dedicated to the study of two classes of widespread pattern recognition methods. Namely Support Vector Machines and Kernel Methods, whose regression capabilities are exploited in the solution of the nonlinear optimal tracking problem. Concerning Support Vector Machines, thanks to the singular optimal control theory, constraints are loosened permitting an easier and faster numerical resolution of the optimization problem. So that, in the fully deterministic case the Support Vector controller results simpler to synthesize. With reference to Kernel Methods, an original attempt to bring together their regression strengths with the concept of Adaptive Inverse Control is presented. The Kernel Recursive Least-Square algorithm is used to implement an adaptive inverse controller capable of forcing a suitable nonlinear dynamics to follow a desired output. This very method can also be used to check if a given arbitrary trajectory is an admissible output for the nonlinear system under study. Such an innovative algorithm could be fruitfully applied, in future works, to the control of Tip-Tilt mirrors. Eventually, a first sketch of the theoretical framework supporting the use of Adaptive Inverse Control for the solution of the general tracking problem is given. After introducing the mathematical formulation of the tracking problem and the needed mathematical definitions, sufficient and necessary conditions (linear case) and sufficient (nonlinear case) conditions to the existence of the solution are derived
Lustosa, Leandro R. "La Phi-théorie : une approche pour la conception de lois de commande de vol des véhicules convertibles." Thesis, Toulouse, ISAE, 2017. http://www.theses.fr/2017ESAE0026.
Full textSince their debut in the 50s, vertical take-off and landing (VTOL) aircraft would only be flown by the most experienced pilots. Recent advances on low-cost inertial sensors, embedded computing and control technology -- on the other hand -- support stability augmentation systems (SAS) in mitigating unstable dynamic modes and allowing for inexperienced (or even autonomous) flight. Nearly all autopilot design techniques, however, rely on accurate mathematical descriptions of novel and thus unfamiliar architectures (e.g., number and positioning of propellers, number and positioning of fixed/variable aerodynamic surfaces). The present thesis establishes an unified framework, namely the Phi-theory, for assessing hybrid vehicles handling qualities and, moreover, designing appropriate stabilizing control laws. This study sets out to establish a tractable model for tail-sitting vehicles in view of control design and qualitative dynamics analysis. The proposed Phi-theory not only yields a numerically advantageous model but also extends our comprehension of tail-sitting vehicles. In sharp contrast with existent literature, the proposed model is globally non-singular, polynomial-like and bypasses the use of aerodynamic angles of attack and sideslip (both free-stream and propwash-induced!). Nevertheless, even if mathematically elegant, a mathematical model has practical use only if consistent with reality. This thesis shows this is the case by means of wind tunnel data and flight experiments. I strongly believe Phi-theory provides a fitting balance between model complexity and controller design simplicity
Lavigne, Gaëlle. "Dualité : qualité de l'identification, insensibilité de la commande : application à la synthèse de commandes robustes aux incertitudes paramétriques." Toulouse, ENSAE, 1994. http://www.theses.fr/1994ESAE0006.
Full textSoua, Samir. "Étude et développement de stratégies de contrôle des courants d'une machine synchrone à aimants permanents et commutation électronique." Toulouse, INPT, 1991. http://www.theses.fr/1991INPT093H.
Full textUrbain, Loi͏̈c. "Analyse structurée d'un contrôleur temps réel de robot basé sur une génération en ligne des trajectoires." Toulouse, INSA, 1996. http://www.theses.fr/1996ISAT0002.
Full textBabet, Fabrice. "Modélisation par équations aux dérivées partielles des retards pour la commande des systèmes robotiques télé-opérés." Orléans, 2008. http://www.theses.fr/2008ORLE2043.
Full textUhlemann, Jens. "Optimisation et conduite automatique d'un réacteur discontinu-application à la synthèse du 2-furyl oxirane." Toulouse, INPT, 1992. http://www.theses.fr/1992INPT070G.
Full textCerisara, Christophe. "Contribution de l'approche multi-bandes à la reconnaissance automatique de la parole." Vandoeuvre-les-Nancy, INPL, 1999. http://www.theses.fr/1999INPL077N.
Full textGrisvard, Olivier. "Modélisation et gestion du dialogue oral homme-machine de commande." Nancy 1, 2000. http://www.theses.fr/2000NAN10011.
Full textTo design a spoken man-machine command dialogue system to be used by the largest number of people, that is even people who are not specialists of interacting with computers, is not an easy task. On the one hand, it requires to take into account sorne characteristics of human conversation in general, in order to provide the system with natural means of interacting with the user. On the other hand, it implies to respect constraints specifie to task-based dialogue, that is dialogue used to manage a definite computer task. Given such a framework, we propose a model for this class of dialogues. Although the model's main purpose is to be implemented in a real command system, its definition is based on an in-depth study of princip les and mecanisms of man-man dialogue. More precisely, our dialogue model comprises a structured representation formalism for task and dialogue data, which is based on the notion of eventuality, as well as a dialogue management procedure. This procedure includes pragmatic analysis of user utterances, effective management of the event-based dialogue representation, application management, and system utterance production. The model we propose is intended to be generic enough in order to be independent of the application
Vasilache, Adriana. "Les réseaux de neurones pour la modélisation et la commande des procédés biotechnologiques." Toulouse, INSA, 2000. http://www.theses.fr/2000ISAT0050.
Full textIn this work we realize a study on the use of the neural nets for the modeling, classification and the control of fermentation processes. The black-box models (we consider a neural net like a black box model) are of great help for processes or phenomena modeling when analytical models cannot be deduced from physical considerations. Some of the advantages of the neural nets when compared to other black-box models are: they are universal approximators using a small number of parameters, their basis functions are adaptive, their repetitive structure permits an easy implementation both software and hardware and they have the property of implicit regularization. These, combined with the characteristics of the biological processes (which are non-linear, non-stationary processes whose dynamics isn’t entirely known), are the reason for which the neural nets are used for the modeling of such processes. We have thus used existing neural models and proposed new ones for the cases of lactic and alcoholic fermentations. We have presented two approaches for the characterization of the fermentation process dynamics: the modeling of the specific biomass growth rate, the most important dynamic parameter of a fermentation process and the global characterization of the process dynamics using a neural classifier. The two approaches have been tested in simulation and on real data for lactic or alcoholic fermentation processes. The use of a classifier of the process dynamics represents a potential tool for process supervision by means of detecting the changes in the process dynamics as well as an aid for the process modeling in the case of batch processes. The prediction of the biomass concentration has also been considered for a continuous fermentation process. The neural models have been tested in a predictive control strategy and compared with a similar strategy using adaptive modeling. The neural prediction has been an incontestable winner for the cases where the process dynamics changes in time. The last issue of our study has been the prediction of the respiratory quotient for a alcoholic fermentation for which we proposed a neural model. It has been proposed in view of a predictive control strategy for the maintenance of a certain regime (fermentative or oxidative)
Rachid, Ahmed. "Contribution à la modélisation et à la commande d'un haut-fourneau." Nancy 1, 1986. http://www.theses.fr/1986NAN10016.
Full textViargues, Ghislaine. "Techniques d'immersion et de parallélisation en programmation dynamique pour la commande en boucle fermée." Toulouse 3, 1994. http://www.theses.fr/1994TOU30179.
Full textChtourou, Mohamed. "La modélisation et la commande des procédés par les réseaux neuromimétiques." Toulouse, INPT, 1993. http://www.theses.fr/1993INPT023G.
Full textGaudy, Anne-Marie. "Conduite automatique et simulation d'un réacteur discontinu de développement industriel à système de chauffage-refroidissement par monofluide." Toulouse, INPT, 1992. http://www.theses.fr/1992INPT034G.
Full textFarges, Christophe. "Méthodes d'analyse et de synthèse robustes pour les systèmes linéaires périodiques." Phd thesis, Université Paul Sabatier - Toulouse III, 2006. http://tel.archives-ouvertes.fr/tel-00132343.
Full textFournier, Olivier. "Conception de la commande d'un système automatisé de productio : apport des graphes et de l'ordonnancement cyclique." La Réunion, 2002. http://tel.archives-ouvertes.fr/tel-00561342/fr/.
Full textBagdouri, Mohammed el. "Commande optimale d'un systeme thermique non lineaire." Nantes, 1987. http://www.theses.fr/1987NANT2023.
Full textJarupintusophon, Pongsak. "Conduite automatique de réacteurs semi-continus à l'aide d'un algorithme de commande prédictive et adaptative intégrant un modèle de connaissance." Toulouse, INPT, 1992. http://www.theses.fr/1992INPT039G.
Full textSchaep, Thomas. "Conception et commande optimale d’une architecture hybride hydraulique de reach stacker." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI121/document.
Full textThe continuously increasing of the intercontinental trade as well as the globalization lead to the need of higher productivity for ports and container terminals. In order to fulfill the need of competitiveness of terminal operators and in the same time respect the environmental legislation, container handling machine manufacturers are developping new solutions. Hybridization of energy sources is an interesting way but using more energy efficient actuation lines is also suitable. As a consequence, specifications are more and more complex, and can in particular have heterogeneous natures. In this thesis, the focus is made on two main topics linked to those problematics. On the one hand, a methodology concerning the sizing of over-actuated systems thanks to a coupling between inverse problems and dynamic optimization is exposed. On the other hand, the design, control strategies and an experimental validation of an hybrid actuation line applied to an container handling machine is presented. First of all, we propose a new procedure based on the bond graph language allowing the designer to take into account simultaneously two types of specifications, namely a cost function to minimize and functions of time specifying desired outputs of the system. This results in a coupled problem of state-space inversion and optimization. The procedure lead to a bond graph from which it is possible to directly derive the analytical system of the problem. The fundamental theory for proving the effectiveness of this procedure is carried out using the port hamiltonian systems. The bond graph representation of an optimal control problem is then extended to systems involving non linearities on dissipative R elements. In a second part, a new actuation architecture is proposed for a container handling machine, in order to improve the fuel efficiency. On the one hand, a transformer based system to recover the potential energy released during container lowering is exposed. This energy is stored into a hydropneumatic accumulator. Then, it is returned thanks to an extra hydraulic motor coupled to the engine shaft. On the other hand, a resizing of the main hydraulic pumps as well as a more suitable control law is proposed in order to make the engine work at better efficiency points. All those evolutions previously mentionned give now the possibility to perform kinetic energy recuperation during vehicle deceleration without adding any major component. The new architecture combined with more effetive control laws lead to a fuel consumption reduction of 16% up to 18%. Finally, the potential energy recovery system is validated on a test rig. The control laws are implemented and the dynamic and energetic performances are then analysed
Westerholt, Eckart Graf von. "Commande non linéaire d'une machine asynchrone : filtrage étendu du vecteur d'état : contrôle de la vitesse sans capteur mécanique." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT050H.
Full textGoubali, Olga. "Apport des techniques de programmation par démonstration dans une démarche de génération automatique d'applicatifs de contrôle-commande." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2017. http://www.theses.fr/2017ESMA0003/document.
Full textFor designing complex and sociotechnical systems, business experts are responsible for writing the functional specifications because of their operational expert knowledge. However, these experts do not usually own the programming knowledge of those who design supervision systems. The task of the system design expert is then to define the functional specifications. S/he writes them in natural language, and then provides them to the designers of the supervision interface and the control-command code. The designers’ job is then to implement and integrate the specifications into the system. Errors from the specification interpretation come from the difference of technical knowledge between the various partners involved in the project. Moreover, depending on the complexity of the system, the definition of functional specifications can be tedious.We propose a design approach based on task modelling and End User Development in order to obtain functional specifications validated by the business experts (mechanical engineer for example).Model-driven engineering techniques are implemented to automatically generate the specification interface (that integrates Recorder, Generalizer, Replayer, and Corrector), the system supervision interface to be piloted and its control program.The technical feasibility of the proposed approach was demonstrated through a proof of concept. This proof of concept was evaluated to demonstrate the interest of the approach in the design of supervision systems
Souvay, Gilles. "Diapason : Un environnement de développement pour l'intégration d'une entrée vocale dans des applications de type commande de machine." Nancy 1, 1992. http://docnum.univ-lorraine.fr/public/SCD_T_1992_0372_SOUVAY.pdf.
Full textMerlet, Jean-Pierre. "Contribution à la formalisation de la commande par retour d'efforts en robotique : application à la commande de robots parallèles." Paris 6, 1986. http://www.theses.fr/1986PA066296.
Full textTuveny, Olivier. "Modélisation "incertaine" en pistage multi-hypothèses : application à un problème d'initialisation automatique de pistes dans un environnement perturbé." Nice, 1994. http://www.theses.fr/1994NICE4769.
Full textPralx, Laurent. "Commande linéaire adaptative : solutions bornées et leurs propriétés." Paris 9, 1988. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1988PA090035.
Full textKhansah, Hael. "Sur la commande de systèmes non linéaires par gains robustes séquencés." Phd thesis, Université Paul Sabatier - Toulouse III, 2007. http://tel.archives-ouvertes.fr/tel-00168054.
Full textColmenares, William. "Sur la robustesse des systèmes linéaires incertains : approche quadratique, retour de sortie." Phd thesis, Université Paul Sabatier - Toulouse III, 1996. http://tel.archives-ouvertes.fr/tel-00139742.
Full textSilveira, Filho Geraldo. "Contributions aux méthodes directes d'estimation et de commande basées sur la vision." Phd thesis, École Nationale Supérieure des Mines de Paris, 2008. http://pastel.archives-ouvertes.fr/pastel-00005340.
Full textAbou-Kandil, Hisham. "Elaboration de structures de commande hiérarchisées : approches monocritère et multicritères." Paris 6, 1986. http://www.theses.fr/1986PA066074.
Full textAlamir, Mazen. "Contributions à l'étude de la commande optimale à horizon fuyant des systèmes non linéaires." Grenoble INPG, 1995. http://www.theses.fr/1995INPG0135.
Full textIn this work, several aspects of the receding horizon control strategy are discussed. First of all, some suffisant conditions for the stability of the closed loop system are proposed for different possible formulations (finite or infinite prediction horizon, with or without final constraint on the state). In a second part, a robust stabilizing feedback strategy is proposed to stabilize uncertain discrete-time nonlinear systems defined with additive unmatched uncertainties. The feedback law is periodic and is based on the use of optimization problems with final inequality constraints. Finally, a special class of continuous nonlinear systems is characterized for which a real time implementation of the receding horizon principle is possible through a linear quadratic optimization problem formulation
Olympio, Joris. "Techniques de commande optimale pour la recherche automatique de stratégies avec assistances gravitationnelles dans le cadre de missions interplanétaires." Phd thesis, École Nationale Supérieure des Mines de Paris, 2008. http://tel.archives-ouvertes.fr/tel-00365115.
Full textPerrier, Michel. "Observation d'état par fonctions de prédiction : maintien de la cohérence du modèle de l'environnement d'un robot mobile." Montpellier 2, 1991. http://www.theses.fr/1991MON20115.
Full textFournier, Olivier. "Conception de la commande d'un système automatisé de production : apport des graphes et de l'ordonnancement cyclique." Phd thesis, Université de la Réunion, 2002. http://tel.archives-ouvertes.fr/tel-00561342.
Full textKetata, Raouf. "Méthodologies de régulation numérique incluant la logique floue." Toulouse, INSA, 1992. http://www.theses.fr/1992ISAT0025.
Full textSahraoui, Abd-El-Kader. "Contribution à la commande et à la surveillance d'ateliers flexibles." Toulouse 3, 1987. http://www.theses.fr/1987TOU30207.
Full textGruer, Juan Pablo. "Eléments de synchronisation pour un langage temps-réel de commande de procédés." Mulhouse, 1989. http://www.theses.fr/1989MULH0105.
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