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Статті в журналах з теми "Commande à base d’observateur"
Ferreres, Gilles, and Patrice Antoinette. "Commande adaptative à base d’auto-séquencement et de robustesse." Journal Européen des Systèmes Automatisés 45, no. 4-6 (August 30, 2011): 279–98. http://dx.doi.org/10.3166/jesa.45.279-298.
Повний текст джерелаChachuat, B., N. Roche, and M. A. Latifi. "Réduction du modèle ASM 1 pour la commande optimale des petites stations d'épuration à boues activées." Revue des sciences de l'eau 16, no. 1 (April 12, 2005): 5–26. http://dx.doi.org/10.7202/705496ar.
Повний текст джерелаHajjar, Salam, Emil Dumitrescu, and Eric Niel. "Conception sûre de systèmes de contrôle-commande matériels à base de COTS." Journal Européen des Systèmes Automatisés 47, no. 1-3 (May 30, 2013): 93–107. http://dx.doi.org/10.3166/jesa.47.93-107.
Повний текст джерелаChoi, Yong Ho. "Une remarque préliminaire sur la sémiotique de l’observateur de Jacques Fontanille." Societe d'Etudes Franco-Coreennes 100 (December 31, 2022): 169–97. http://dx.doi.org/10.18812/refc.2022.100.169.
Повний текст джерелаChoi, Yong Ho. "Une remarque préliminaire sur la sémiotique de l’observateur de Jacques Fontanille." Societe d'Etudes Franco-Coreennes 100 (December 31, 2022): 169–97. http://dx.doi.org/10.18812/refc.2022.100.169.
Повний текст джерелаZoo Eyindanga, René Casimir. "Citoyenneté et éducation à la citoyenneté : points de vue d’enseignants et d’enseignantes du secondaire au Gabon." Articles 48, no. 1 (September 19, 2013): 203–22. http://dx.doi.org/10.7202/1018409ar.
Повний текст джерелаSaleh, Louay, Philippe Chevrel, Fabien Claveau, Jean-François Lafay, and Franck Mars. "Contrôle latéral partagé d’un véhicule automobile. Conception à base d’un modèle cybernétique du conducteur et d’une commande H2 anticipative." Journal Européen des Systèmes Automatisés 46, no. 4-5 (July 30, 2012): 535–57. http://dx.doi.org/10.3166/jesa.46.535-557.
Повний текст джерелаMarcaggi, G. "Les neurosciences affectives : modèle théorique et applications psychopathologiques." European Psychiatry 29, S3 (November 2014): 559. http://dx.doi.org/10.1016/j.eurpsy.2014.09.370.
Повний текст джерелаChampagnol, Raymond. "Modèle d’acquisition des signifiés du langage." Revue québécoise de linguistique 22, no. 1 (May 1, 2009): 185–200. http://dx.doi.org/10.7202/602758ar.
Повний текст джерелаBertrand, Richard G. "Évaluation d’une calculatrice auto-correctrice : Classmate 88." Revue des sciences de l'éducation 5, no. 1 (October 15, 2009): 39–53. http://dx.doi.org/10.7202/900096ar.
Повний текст джерелаДисертації з теми "Commande à base d’observateur"
Belkhiat, Djamel Eddine Chouaib. "Diagnostic d’une classe de systèmes linéaires à commutations : approche à base d’observateurs robustes." Thesis, Reims, 2011. http://www.theses.fr/2011REIMS020/document.
Повний текст джерелаThis thesis focuses, in first and foremost, on the model-based diagnosis of a class of SLC (Switched Linear Systems). The basic idea is to consider the continuous and discrete aspects, forming an SLC, explicitly.In this context, we proposed a methodology for detecting and locating faults that combines the tools originally dedicated to the continuous systems and the DES (discrete event systems) diagnosis. The proposed approach is designed around three modules: two types of residual generators (from the continuous Automatic) and anon-line estimator of the discrete state, called diagnoser (from the event Automatic). Our diagnoser uses the residual generators issue from the continuous part to identify the SLC mode and isolate sensor faults.Residues used for fault location sensors are generated through a generator developed around a scheme DOS(Dedicated Observer Scheme) based on hybrid observers. These observers are robust vis-à-vis the unknown input and sensitive to sensor faults. Secondly, based on the obtained results using the previous diagnosis approach, we proposed a preliminary approach for fault-tolerant state-feedback control law synthesis. This approach preserves the nominal performance of the system (as non-defaulting) in the presence of defective sensors. The idea is to reconfigure the state feedback by replacing the state vector estimated from defected output by another estimated from non-defected one. Redundancy estimates is provided in this approach by a bank of robust hybrid observer that provides several accurate estimates of state vectors and outputs
Ait, Ladel Ayyoub. "Commande tolérante aux défauts des systèmes à multimodèles : application à des systèmes à multi-source d'énergie." Electronic Thesis or Diss., Aix-Marseille, 2022. http://theses.univ-amu.fr.lama.univ-amu.fr/220330_AITLADEL_882kmyqu655hkbca383zrkcz402ihwf_TH.pdf.
Повний текст джерелаThis thesis deals with the fault detection/estimation and fault-tolerant control challenges through integrated design. The aim is to design control strategies able to maintain robust and acceptable performance even in the presence of faults. The considered systems are dynamic in nature and are multi-model. The approaches proposed in this thesis consist in formalizing the integrated design of the detection/estimation and fault-tolerant control units in the form of linear matrix inequalities to overcome the difficulty posed by the observer/controller coupling. These approaches provide the ability to consider the different interactions between the system, the detection/estimation unit, and the control unit. Therefore, ensuring a global stability analysis of the closed-loop system and robust performances in terms of detection/estimation, control, and fault compensation. The thesis is mainly composed of three parts. In the first part, results on the control in the presence of sensor or actuator faults are established for switched linear systems. In the second part, extensions to switched nonlinear systems with sensor and actuator faults are proposed. Finally, the third part consists of a complete study of a renewable energy system. It is a multi-source/multi-load system designed to meet multiple demands and is subject to the intermittency of renewable energies
Nasser, Habib. "Systèmes mécatroniques à base d’observateurs embarqués pour la surveillance et le pilotage de Systèmes Automatisés à Structures Variables." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4326.
Повний текст джерелаThis thesis deals with the modeling, simulation and control of mechatronic systems. Symbolic computation software Maple was used to generate several models with different targets for diagnosis purposes, monitoring and driver assistance. These models based both on robotic and energetic approaches, highlight the properties and characteristics of the vehicle dynamics according to the trajectory and allow to achieve Fault , Detection and Isolation (FDI) development. This initial work led to mechatronics and energy analysis applied to All Terrain Vehicles (ATV). A dynamic spiting of the studied vehicle in several functional blocks was carried out. The evolution of the coupling terms was studied and defining a global energetic sub-division for the whole system. Within the framework of the ANR project, a 16 degrees of freedom (DOF) dynamic model was developed for a farm grape harvester (G7) and for C5 car. Dynamic parameters Identification using real data in driving simulation environment proposed by Oktal (SCANeR Studio). Regarding the robust observers development, the sliding mode theory was applied. The road profiles (slope, tilt,drift) are estimated with observers. The criterion of rollover has been tested on the dynamics of a Citroen C5 car and on the G7.240.In order to have an experimental demonstrator a device using the new Arduino technology containing a set of sensors has been developed. In a last part, the dynamic behaviour of an electric kart with the field-oriented control (FOC) of its electrical engine are given. With Matlab/Simulink software and Bond Graph, a simulator of the electrical Kart has been developed
Ghattassi, Mohamed. "Modélisation, observation et commande d’une classe d’équations aux dérivées partielles : application aux matériaux semi-transparents." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0123/document.
Повний текст джерелаThis thesis investigates the theoretical and numerical analysis of coupled radiative conductive heat transfer in a semi-transparent, gray and non-scattering 2D medium. This two heat transfer modes are described by the radiative transfer equation (RTE) and the nonlinear heat equation (NHE). We proved the existence and uniqueness of the solution of coupled systems with homogeneous Dirichlet boundary conditions using the fixed-point theorem. Moreover, we developed a useful algorithm to simulate the temperature in the medium. We used the quadrature $S_{N}$ for the angular discretization of the RTE. The spatial discretization of RTE was made by the discontinuous Galerkin method (DG) and the finite element method for the non-linear heat equation. We have shown the convergence and the stability of the coupled numerical scheme using the discrete fixed point. The discrète model obtained after an approximation allowed us to do the analysis and synthesis of state estimators and feedback control design for stabilization of the system. Thanks to the special structure of the model and using the Differential Mean Value Theorem (DMVT), we proposed a reduced order observer and we construct a gain matrix, which ensures the exponential stability of the proposed observer and guarantees the boundedness of the estimate vector. An extension to $\mathcal{H}_{\infty}$ filtering is also provided. We have extended the reduced order approach in the case of the observer-based controller and we proved the exponential stability under the control feedback law. Similarly, an extension to $\mathcal{H}_{\infty}$ filtering is also provided. The obtained results were validated through several numerical simulations
Al-Tahir, Ali Abdul Razzaq. "Synthèse d’observateur d'état et commande non-linéaire à retour de sortie des systèmes électriques." Caen, 2016. http://www.theses.fr/2016CAEN2070.
Повний текст джерелаThe research work developed in this thesis has been mainly devoted to the observation and sensorless control problems of electrical systems. Three major contributions have been carried out using the high - gain concept and output feedback adaptive nonlinear control for online UPS. In this thesis, we dealt with synthesis of sampled high - gain observers for nonlinear systems application to PMSMs and DFIGs. We particularly focus on two constraints: sampling effect and tracking unmeasured mechanical and magnetic state variables. The first contribution consists in a high gain observer design that performs a relatively accurate estimation of both mechanical and magnetic state variable using the available measurements on stator currents and voltages of PMSM. We propose a global exponential observer having state predictor for a class of nonlinear globally Lipschitz system. In second contribution, we proposed a novel non – standard HGO design for non-injective feedback relation application to variable speed DFIG based WPGS. Meanwhile, a reduced system model is analyzed, provided by observability test to check is it possible synthesis state observer for sensorless control. In last contribution, an adaptive observer for states and parameters estimation are designed for a class of state - affine systems application to output feedback adaptive nonlinear control of three-phase AC/DC boost power converter for online UPS systems. Basically, the problem focused on cascade nonlinear adaptive controller that is developed making use Lyapunov theory. The parameters uncertainties are processed by the practical control laws under backstepping design techniques with capacity of adaptation
Gonzalez, de Cossio Francisco. "Synthèse d’observateur robuste pour les systèmes non linéaires." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1273.
Повний текст джерелаEstimating the state of a nonlinear system is an essential task for achieving important objectives such as: process monitoring, identification and control. Observers are algorithms that estimate the current state by using, among other information, sensor measurements. The problem of observer design for nonlinear systems has been a major research topic in control for many decades. Recently, there has been an increasing interest in the design of observers for more realistic models, which can include disturbances, sensor nonlinearities and discrete outputs. This thesis concerns the design of robust observers for selected classes of nonlinear systems and we can distinguish three main parts. The first part studies state-affine systems affected by noise, and analyses the state estimation via the so-called high-gain Kalman filter. The convergence properties of this observer are strongly influenced by two variables: its tuning parameter and the properly excited system input. We present a new optimization algorithm, based on Lyapunov analyses, that adapts these variables in order to minimize the effect of both dynamic and output disturbances. The novelty of this approach is that it provides a systematic method of simultaneous tuning and input selection with the goal of improving state estimation in the face of disturbances, and that it avoids the use of trial-and-error based methods. The second part studies the problem of observer redesign for general nonlinear systems whose outputs are transformed by nonlinear functions. Indeed, a given observer might not estimate the system state properly if it does not take into account sensor nonlinearities and, therefore, such an output mismatch needs to be addressed. We present an observer redesign that consists in the interconnection of the original observer with an output estimator based on a dynamic inversion, and we show its asymptotic convergence via small-gain arguments. We illustrate our method with two important classes of systems: state-affine systems up to output injection and systems with additive triangular nonlinearity. Finally, the third part extends our redesign method to systems whose outputs are not only transformed but also discretized in time. This added assumption introduces important challenges; we now implement sample-and-hold techniques leading to an observer gain based on linear matrix inequalities. The main feature of our redesign methods is the possibility to adapt a large number of observers from the literature to more realistic scenarios. Indeed, classical sensors in engineering applications are often nonlinear or discrete, whereas a recurrent assumption in observer design is the linearity or continuity of the output
Granado, Ernesto. "Commande predictive a base de programmation semi definie." Phd thesis, INSA de Toulouse, 2004. http://tel.archives-ouvertes.fr/tel-00009241.
Повний текст джерелаGranado, Migliore Ernesto. "Commande prédictive à base de programmation semi définie." Toulouse, INSA, 2004. http://www.theses.fr/2004ISAT0006.
Повний текст джерелаThis work develops some approaches for the synthesis of partial information robust output feedback controllers in discrete time systems. In the framework of predictive control the synthesis follows the minimization, at each sampling time, of an upper bound for a quadratic cost associated with an infinite time horizon. The optimization problem which takes into account state and control constraints is described in terms of a semi definite programming one including linear matrix inequalities. Two general approaches are investigated: the first one is based on invariant ellipsoidal concept with dynamic output control, the second one makes use of an extended formulation where the initial output feedback control is translated in terms of extended state feedback control
Fadiga, Lamine. "Commande h∞ à base de modèles non entiers." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0090/document.
Повний текст джерелаThe general theme of the work enables to extend H∞ control methodology to fractional order models. Two approaches are proposed. The first one consists in rewriting the fractional order model as an uncertain integer order model in order to use existing H∞ control methods for integer order models. The second approach consists in developing specific LMI conditions for fractional order models based on their pseudo state space representation. These two approaches are applied to the vibratory isolation of a bridge
Faucher, Jérôme Maussion Pascal. "Les plans d'expériences pour le réglage de commandes à base de logique floue." Toulouse : INP Toulouse, 2006. http://ethesis.inp-toulouse.fr/archive/00000312.
Повний текст джерелаКниги з теми "Commande à base d’observateur"
Lucas, Humberto. UNIX: Mécanismes de base, langage de commande, utilisation. 6th ed. Paris: Eyrolles, 1990.
Знайти повний текст джерелаCrosnier. Ingenierie de la commande des systemes techniques de base. Ellipses Marketing, 2001.
Знайти повний текст джерелаCrosnier. Ingenierie de la commande des systemes techniques de base. Ellipses Marketing, 2001.
Знайти повний текст джерелаCrosnier. Ingenierie de la commande des systemes techniques de base. Ellipses Marketing, 2001.
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