Dissertationen zum Thema „Commande robuste“
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Reberga, Luc. „Commande robuste multivariable des turboréacteurs“. Toulouse, INSA, 2005. http://www.theses.fr/2005ISAT0022.
Der volle Inhalt der QuelleDuval, Cédric Arnaud Henri. „Commande robuste des machines asynchrones“. Ecully, Ecole centrale de Lyon, 2002. http://www.theses.fr/2002ECDL0032.
Der volle Inhalt der QuelleDeals with the robust control to parametric uncertainties of the induction motors. Our first approach consists in carrying out a vector control by orientation of rotor field using the compensations terms in order to uncouple and to linearise the voltages/currents transfers. The frequency command is calculated by self control, using the speed and the slip frequency, which is deduced from the equations of the induction motor. The robustness of the control loops of currents is ensured by HÆ correctors single-input single-output, using a simple and effective design method. The control was improved by the use of a Kalman observer which is reduced in delayed state, and extended to two parameters of the motor. Our second approach carries out the removing of the compensations terms and the self control. (. . . )
Yang, Rui. „Modélisation et commande robuste appliquée à un robot sous-marin“. Thesis, Brest, 2016. http://www.theses.fr/2016BRES0011/document.
Der volle Inhalt der QuelleAutonomous Underwater Vehicle (AUV) is a relevant technology for the sustainable use of ocean resources. AUV can be used as an important ocean observing platform to collect information on marine environmental characteristics for research and industry fields. In order to improve the observation quality and increase the navigation ability, many issues should be addressed and considered simultaneously. Achieve necessary maneuverability depends on two key factors: an accurate hydrodynamic model and an advanced control system. However, the cost to develop an accurate hydrodynamic model, which shrinks the uncertainty intervals, is usually high. Meanwhile, when the robot geometry is complex, it becomes very difficult to identify its dynamic and hydrodynamic parameters. In addition, according to the quadratic damping factor, underwater vehicle dynamic and hydrodynamic model is nonlinear from the control point of view. Moreover, unmodeled dynamics, parameter variations and environmental disturbances create significant uncertainties among the nominal model and the reality. Sensor noise, signal delay as well as unmeasured states also affect the stability and control performance of the motion control system. In many of our underwater competitions, it has been confirmed that the traditional Proportional-Integral-Derivative (PID) regulation is less efficient for low mass AUV. In this case, our scope is more focused on the combination of numerical modeling approaches and robust control schemes. In this work, we proposed a model based robust motion control scheme. Without loss of generality, a robust heading controller was implemented and validated in the sea on cubic-shaped CISCREA AUV. The proposed solution uses cost efficient Computational Fluid Dynamic (CFD) software to predict the two hydrodynamic key parameters: The added mass matrix and the damping matrix. Four Degree of Freedom (DOF) model is built for CISCREA from CFD calculation. Numerical and experimental results are compared. Besides, the proposed control solution inherited the numerically obtained model from previous CFD calculation. Numerically predicted the actuator force compensates the nonlinear damping behavior result in a linear model with uncertainties. Based on the bounded linear nominal model, we proposed H∞ approach to handle the uncertainties, we used kalman filter to estimate unmeasured states such as angular velocity and we developed smith compensator to compensate the sensor signal delay. The proposed robust heading control application uses only one compass as feedback sensor. This is important while AUV is working at certain depth where only magnetic sensors still work. Our robust control scheme was simulated in Matlab and validated in the sea near Brest. Simulation shows obvious advantage of the proposed robust control approach. Meanwhile, the proposed robust heading control is much faster than PID controller. The robust controller is insensitive to uncertainties and has no overshot. From both simulations and real sea experiments, we found our proposed robust control approach and the one compass heading control applications are efficient for low mass and complex-shaped AUV CISCREA
Pourmohammad-Namvar, Mehrzad. „Interaction entre identification et commande : identification pour la commande robuste“. Grenoble INPG, 2001. http://www.theses.fr/2001INPG0004.
Der volle Inhalt der QuelleHernandez, torres David. „Commande robuste de générateurs électrochimiques hybrides“. Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00680983.
Der volle Inhalt der QuelleHernandez, Torres David. „Commande robuste de générateurs électrochimiques hybrides“. Thesis, Grenoble, 2011. http://www.theses.fr/2011GRENT075/document.
Der volle Inhalt der QuelleThe objective of this thesis is the design of several control strategies for a hybrid power generator composed by a fuel cell and an auxiliary energy storage source. The Linear Matrix Inequalities (LMI) tools are extensively used in this dissertation as a solution to the mutivariable robust control problem. As a first approach, the control methodology is consecrated to the electrical power management sub-system of the fuel cell. Different strategies are proposed to control the hybrid boost power converter configuration for DC voltage applications. The methodology is extended to AC islanded applications considering the additional control of a voltage inverter. The validation on a dedicated test-bench, of a part of the proposed control strategies, is presented. In a second approach, the control of the air supply system is addressed. The management of the air dynamic entering the fuel cell is assured by the control of the air flow of a compressor. The air supply sub-system is controlled to keep a desired oxygen excess ratio, this allow to improve the fuel cell performance. An introduction to the control of Linear Varying Parameter (LPV) systems is also presented. Robustness analysis studies are performed, these robust properties are contrasted with several classic control strategies, demonstrating the advantage and the importance of multivariable robust methodologies
Grassin-Clausolles, Nathalie. „Commande optimale robuste d'un pont roulant“. Paris 11, 1992. http://www.theses.fr/1992PA112380.
Der volle Inhalt der QuelleSamblancat, Christiane. „Commande robuste multivariable : applications à l'hélicoptère“. Toulouse, ENSAE, 1991. http://www.theses.fr/1991ESAE0014.
Der volle Inhalt der QuelleYagoubi, Mohamed. „Commande robuste structurée et optimisation convexe“. Nantes, 2003. http://www.theses.fr/2003NANT2027.
Der volle Inhalt der QuelleBalloul, Iyad. „Commande robuste des systemes non linéaires“. Grenoble INPG, 2000. http://www.theses.fr/2000INPG0001.
Der volle Inhalt der QuelleBlanco, Éric. „Lissage robuste et déconvolution“. Lyon 1, 2002. http://www.theses.fr/2002LYO10165.
Der volle Inhalt der QuelleLapeyre, Fabrice. „Identification pour la commande robuste et la détection robuste de défauts“. Bordeaux 1, 1997. http://www.theses.fr/1997BOR10567.
Der volle Inhalt der QuelleLaroche, Edouard. „Identification et Commande Robuste de Systèmes Électromécaniques“. Habilitation à diriger des recherches, Université Louis Pasteur - Strasbourg I, 2007. http://tel.archives-ouvertes.fr/tel-00354139.
Der volle Inhalt der QuelleCe mémoire est organisé autour des trois systèmes applicatifs traités. A chacun d'entre eux est consacré une partie distincte. Puisqu'une grande partie des problématiques scientifiques traitées est transversale et abordée pour plusieurs systèmes, j'ai choisi de les introduire dans la première partie de ce rapport.
St-Onge, David. „Modélisation et commande d'un robot volant robuste“. Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28664/28664.pdf.
Der volle Inhalt der QuelleHenrion, Didier. „Polynômes et optimisation convexe en commande robuste“. Habilitation à diriger des recherches, Université Paul Sabatier - Toulouse III, 2007. http://tel.archives-ouvertes.fr/tel-00246118.
Der volle Inhalt der QuelleArzelier, Denis. „Théorie de Lyapunov, commande robuste et optimisation“. Habilitation à diriger des recherches, Université Paul Sabatier - Toulouse III, 2004. http://tel.archives-ouvertes.fr/tel-00010257.
Der volle Inhalt der QuelleDe, Hillerin Safta. „Commande robuste de systèmes non linéaires incertains“. Thesis, Supélec, 2011. http://www.theses.fr/2011SUPL0015/document.
Der volle Inhalt der QuelleThis thesis studies the LPV approach for the robust control of nonlinear systems. Its originality is to propose for the first time a rigorous framework allowing to solve efficiently nonlinear synthesis problems.The LPV approach was proposed as an extension of the H-infinity approach in the context of LPV (Linear Parameter-Varying) systems and nonlinear systems. Although this approach seemed promising, it was not much used in practise. Indeed, beyond certain theoretical limitations, the nature itself of the obtained solutions did not seem adequate. This open question constitutes the starting point of our work.We first prove that the observed weak variation of the controllers is in fact mostly due to the information structure traditionally used for LPV synthesis, and that under reasonable assumptions, the LPV framework can overlap feedback linearization strategies. This point having been resolved, a second difficulty lies in the actual achievement of nonlinear controllers yielding performance guarantees. We propose a rigorous framework allowing to solve efficiently an incremental synthesis problem, through the resolution of an LPV problem associated to a specific information structure compatible with the one identified in the first part.This study and its corollary description of a formal framework and of a complete controller synthesis procedure, including complexity reduction methods, provide powerful arguments in favor of the LPV approach for the robust control of nonlinear systems
Gallet, Alain. „Isolation vibratoire par commande robuste H "infini"“. Aix-Marseille 1, 1996. http://www.theses.fr/1996AIX11022.
Der volle Inhalt der QuelleChouaib, Ibrahim. „Commande modale et placement de pôles robuste“. Toulouse, INSA, 1994. http://www.theses.fr/1994ISAT0026.
Der volle Inhalt der QuelleDRAI, MAHFOUD REMI. „Commande robuste de structures flexibles et dissipativite“. Nice, 1998. http://www.theses.fr/1998NICE5256.
Der volle Inhalt der QuelleDussy, Stéphane. „Approche LMI de la commande robuste multicritère“. Paris 9, 1998. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1998PA090012.
Der volle Inhalt der QuelleControl theory lies on the synthesis of a control law ensuring for the closed-loop System some possibly conflicting spécifications that include stability, time response, disturbances rejection, passivity, command input and outputs bounds or robustness in respect to parametric or modeling uncertainties. . . It is already a difficult problem by its own to guarantee all of these constraints for a linear system. The main purpose of the thesis is to propose a systematic methodology to synthesize a controller that ensures simultaneously the whole spécifications for a wide class of uncertain nonlinear systems. The finite précision problems that appear when implementing the controller in real systems are also analyzed. The proposed methodology to synthesize an output-feedback robust control law lies on the translation of the constraints into some convex problems. Then, a formulation based on Linear Matrix Inequalities allows to numerically compute, via recently developed interiorpoint techniques of optimisation, a control law. This approach represents a good trade-off between tractability and complexity of the conditions. Some algorithms are developed for different kinds of control design and numerical examples are provided. A Matlab toolbox has been developed so that an engineer in control can easily specify and solve the problem without any spécifie knowledge on the recent advances about LMI-based control
Trofino-Neto, Alexandre. „Commande robuste et performance des systèmes incertains“. Grenoble INPG, 1993. http://www.theses.fr/1993INPG0016.
Der volle Inhalt der QuelleConstantinescu, Aurelian. „Commande robuste et adaptative d'une suspension active“. Grenoble INPG, 2001. http://www.theses.fr/2001INPG0130.
Der volle Inhalt der QuelleManceur, Malik. „Commande robuste des systèmes non linéaires complexes“. Thesis, Reims, 2012. http://www.theses.fr/2012REIMS003/document.
Der volle Inhalt der QuelleThis work deals with a fuzzy tracking control design for uncertain nonlinear dynamic system withexternal disturbances and using a TS (Takagi-Sugeno) fuzzy model description. The control is basedon the Super-Twisting algorithm, which is among of second order sliding mode control. Moreover, twoadaptive fuzzy type-2 systems have been introduced to generate the two Super-Twisting signals toavoid both the chattering and the constraint on the knowledge of disturbances and uncertainties upperbounds. These adaptive fuzzy type-2 systems has only one input : the sliding surface, and one output :the optimale values of the control gains, which are hard to compute with the original algorithm.Simulation results are obtained in order to compare the performances of the proposed method tothat given by Levant. Then, we have introduced the integral sliding mode concept to impose inadvance the convergence time and the arrival on the sliding surface. The proposed approaches aregeneralized to the case of multivariable systems. Several results in simulation and in real time usinga benchmark are obtained to validate and to confirm the performances of our contributions
Maalej, Sonia. „Commande robuste des systèmes à paramètres variables“. Thesis, Lille 1, 2014. http://www.theses.fr/2014LIL10209/document.
Der volle Inhalt der QuelleThis work focuses on the stability analysis and the robust control synthesis for nonlinear systems. The design of controllers/observers ofen require a complite or partiel knowledge of the process model to control. Nevertheless, obtaining a model both reable and sufficiently accurate is not only difficult and time-consuming but also it increases the total cdevelopment cost of a control system. In order to reduce the quantity and quality of informations required on the system, new methods of observers and controllers synthesis have been proposed. With known models, an output feedback controller based Luenberger observer was proposed. For this control law, the system closed loop is viewed as the interconnection composed with the ideal closed loop and the observation error. In case where few informations are available, a restricted-model (''model-free'') controller is proposed. In order to estimate the system state, non-asymtotic derivators /estimators based on differentiel algebra or asymptotic ones such as observers or filters have been considered. Both of these control laws have allow to maintain the nonlinear aspects of the system and to obtain general results by reformulating the problem into convex polytopic systems forms. The works of this thesis mainly relies on direct Lyapunov method with quadratic function
Poussot-Vassal, Charles. „Commande robuste LPV multivariable de châssis automobile“. Phd thesis, Grenoble INPG, 2008. http://www.theses.fr/2008INPG0171.
Der volle Inhalt der QuelleIn this thesis, the automotive global chassis control problem is treated. The objective is to develop methodologies to control the different vehicle actuators (suspension, braking and steering systems) to enhance comfort and safety, and, to control the ground vehicle dynamics. Since it implies many different and nonlinear phenomena and constrained actuators, this problem turns to be very complex to solve. The tools and methods used are inspired from the recent developments in automatic control, and especially from the one from the robust control community applied to Linear Parameter Varying (LPV) systems. In this framework, we focus on the modeling, the analysis and the control of automotive systems as well as robust control for LPV systems, using the Linear Matrix Inequality (LMI) tools. The main results concern the development of a new semi-active suspension controller and an adaptive global chassis control using the robust LPV approach
Poussot-Vassal, Charles. „Commande Robuste LPV Multivariable de Châssis Automobile“. Phd thesis, Grenoble INPG, 2008. http://tel.archives-ouvertes.fr/tel-00351472.
Der volle Inhalt der QuelleFischman, Arao. „Commande robuste des systèmes sous contraintes structurelles“. Grenoble INPG, 1998. http://www.theses.fr/1998INPG0007.
Der volle Inhalt der QuelleFergani, Soheib. „Commande robuste LPV/H infini multivariable pour la dynamique véhicule“. Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT053/document.
Der volle Inhalt der QuelleThe main issue of this thesis is to work out new Global Chassis MIMO controllers that enhance the overall dynamics of the vehicle while preserving the vehicle stability in critical driving situations. Many innovative strategies have been explored and finalized to deal with these problematics. Various solutions have been given to deal with the vehicle stability and performance objectives. Indeed, many works based on the LPV/Hinf approach have been developed to control simultaneously the braking, steering and suspension actuators. On the other hand, innovative road profile estimation strategies have been introduced and validated via experimental procedures, providing new cheap and easily implementable techniques to estimate the road profile characteristics. Then, the vehicle control is adapted, depending on the road roughness (since it influences greatly the behaviour and the stability of the car). Several fault tolerant control strategies have been also considered to handle the actuators failures while keeping the vehicle stability, safety and enhancing the dynamical behaviour of the car in dangerous and critical driving situations.The general content of this thesisis as follows :-PART I : Theoretical backgrounds and vehicle modeling.-PART II : Road adaptive control vehicle dynamics.-PART III : Global chassis control using several actuators.Also, during this thesis and using the previous works of the advisors and the thesis results, a Matlab ToolBox "Automotive" has been developed to provide a bench test for the different automotive control studies. Implementations on test beds and real vehicle are also achieved to prove the efficiency of the proposed strategies
Ouddah, Nadir. „Commande robuste de machines à réluctance variable pour la traction de véhicules électriques“. Thesis, Cergy-Pontoise, 2015. http://www.theses.fr/2015CERG0789.
Der volle Inhalt der QuelleThe switched reluctance motor (SRM) is gaining much interest in electric vehicle applications. It includes robustness to harsh operational conditions, rugged structure, fault tolerant operation and a wide range of speed. However, due to the highly nonlinear electromagnetic characteristic, wear and tear of motor, manufacturing tolerances and parameters drift during operation, classical control strategies do not ensure high dynamical performance and robustness under various operating conditions in electric vehicle environment. In this context, the first purpose of this thesis is to propose robust control strategies of the SRM taking into account the constraints imposed by electric vehicle applications. To achieve this objective, a cascade control scheme is adopted; it consists of an outer speed loop and an inner current loop. Controllers design aims are fixed through specifications formulated in frequency domain, robust and adaptive controllers of speed and currents are thus synthesized based on H- infini and LPV/H- infini control approaches. Feasibility of these controllers is also an important criterion in electric vehicles applications where embedded computing power is very limited. This criterion is taken into account in this thesis by using fixed order controller synthesis approaches. The performances of these controllers are analyzed and compared with the performances of standard H- infini controllers through an experimental evaluation and a robustness analysis is performed using the concept of the Singular Structured Value, i.e. the μ-analysis. The second objective of this thesis is to assess the interest of the sensorless control of SRM. Robust observers based on second order sliding mode (SMO2) and Kalman filtering techniques (EKF) are designed to estimate the mechanical states of SRM. Performances and robustness of these observers are then compared experimentally in perspective of electric vehicle application
Cazaurang, Franck. „COMMANDE ROBUSTE DES SYSTÈMES PLATSAPPLICATION À LA COMMANDE D' UNE MACHINE SYNCHRONE“. Phd thesis, Université Sciences et Technologies - Bordeaux I, 1997. http://tel.archives-ouvertes.fr/tel-00012110.
Der volle Inhalt der QuelleCazaurang, Franck. „Commande robuste des systèmes plats : application à la commande d'une machine synchrone“. Bordeaux 1, 1997. http://www.theses.fr/1997BOR10644.
Der volle Inhalt der QuellePommier, Valérie. „Commande non entière et commande robuste non linéaire d'un banc d'essais hydraulique“. Paris, ENSAM, 2002. http://www.theses.fr/2002ENAM0003.
Der volle Inhalt der QuelleJanat, Yaman. „Commande CRONE monovariable et multivariable de systèmes peu amortis“. Toulouse 3, 2007. http://thesesups.ups-tlse.fr/56/.
Der volle Inhalt der QuelleThe vibrations reduction is a major issue in the industrial field. This thesis deals with active control to attenuate the resonances of a structure. The two experimental devices of this thesis are processes with piezoelectric ceramics; one is monovariable and the other is multivariable. The first one is a simple model composed of a free-clamped beam only subjected to bending. The second is a simplified model of an airplane wing, subjected at the same time to bending and torsion. In the frame of our work, the processes being at the same time lightly-damped and uncertain, the control strategy lies on fractional robust control (CRONE control) and iso-damping contours. The iso-damping contours are particularly adapted to the control of vibrations since the graduation of the iso-damping contour tangent to an open-loop Nichols locus is the damping factor of the closed-loop response. The CRONE control aims at insuring the robustness of the stability degree of the control, taking into account the plant uncertainties. The stability degree is measured by the resonance factor or the damping factor and the plant uncertainties are taken into account without over-estimation. This thesis has shown the efficiency of the CRONE control associated to the iso-damping contours in order to deal with uncertain and lightly damped processes. The studied processes are well-better damped and experimental results have confirmed the robustness of the control
This thesis work is placed at the crossroad of Automatic control, Artificial Intelligence and Biotechnology. It aims at developing a modelling and control methodology based on a fuzzy logic approach. The first part of the work presents an introduction to the principles and techniques used in current wastewater treatment plants. It highlights the difficulty in modelling the multiple phenomena involved. From this fact, in the second part, focused on fuzzy modelling and control, we develop initially the identification of affine fuzzy models of Takagi-Sugeno (TS) type from input-output data. We used several fuzzy clustering methods as well as an agglomerative-competitive method which is robust in presence of noise. This type of "grey box" approach allows a rule-based representation which approximates the nonlinear dynamics as a concatenation of locally linear sub-models in the nonlinear autoregressive form (NARX). Moreover, we have developed a graphical version of the FMID toolbox for the fuzzy modelling of systems. Then, we propose a suboptimal linear-quadratic TS fuzzy control relevant to the structure of the identified fuzzy model, by using the parallel distributed compensation (PDC) technique. Finally, the whole methodology is tested and validated in simulation on an aerobic wastewater treatment bioprocess
Achnib, Asma. „Développement de la commande CRONE avec effet anticipatif robuste“. Thesis, Bordeaux, 2019. http://www.theses.fr/2019BORD0056/document.
Der volle Inhalt der QuelleThe work presented in this thesis is part of the study of the effectiveness of CRONE control with anticipative effect in the problems of tracking and control for monovariable and multivariable systems. The anticipation objective is to design a control algorithm that minimizes a quadratic error between the reference and the output of the system and at the same time achieve a good level of the control signal. The proposed solution combines a robust feedback control with a feedforward control. The feedforward action uses optimality criteria and an anticipative filter which is designed in the frequency domain using a mix of $mathcal{H}_2$ et $mathcal{H}_infty$ constraints. The reduction of the number of parameters of the anticipative filter by using a slower sampling period for the anticipative filter is treated. Academic examples highlight the theoretical developments. A practical application on a hydraulic control system has shown the efficiency of the developed approach
Abroug, Neil. „Commande robuste multi-variable des systèmes de comanipulation“. Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAD027/document.
Der volle Inhalt der QuelleAt the dawn of the fourth industrial revolution, robotic comanipulation is a key technology as it combines the dexterity of the human operator with the power of the machine. This task sharing between human and machine, in an uncertain and previously unknown environment, brings a lot of intrinsic difficulties to the nature of this interaction. This problem has been intensively studied over the last two decades by various research teams, mostly on devices with a single degree of freedom and with strong hypotheses about the controller structure. In this thesis, we deal with the problem of robotic comanipulation through the scope of the structured Hoo control, a framework particularly adapted to multivariable systems and which can be extended to a certain class of non-linear systems – manipulating robots are part of it – through linear parameter varying (LPV) models. The performance and stability requirements specific to comanipulation systems are expressed in terms of Hoo constraints and sector bounds. The control objectives thus formalised are solved by non-smooth optimization in order to take advantage of the particular structures of the comanipulation robot controllers. The validity of the methodology is carried out by intensive simulations and experiments on real devices
Tadjine, Mohamed. „Commande LQG/LTR et identification robuste : formulation avec l'opérateur delta“. Grenoble INPG, 1994. http://www.theses.fr/1994INPG0094.
Der volle Inhalt der QuelleChrifi-Alaoui, Larbi. „Commande robuste à double degré de liberté - stabilité et H“. Ecully, Ecole centrale de Lyon, 1994. http://www.theses.fr/1994ECDL0056.
Der volle Inhalt der QuelleBonhomme, Patrice. „Réseaux de Petri P-temporels : contributions à la commande robuste“. Chambéry, 2001. http://www.theses.fr/2001CHAMS012.
Der volle Inhalt der QuelleJaulin, Luc. „Solution globale et garantie de problemes ensemblistes : applications a l'estimation non lineaire et a la commande robuste“. Paris 11, 1994. http://www.theses.fr/1994PA112056.
Der volle Inhalt der QuelleGherbi, Souad. „Commande robuste des systèmes de production : une approche basée sur un modèle mixte Statechart-Automates“. Lyon, INSA, 1999. http://www.theses.fr/1999ISAL0096.
Der volle Inhalt der QuelleNouailletas, Rémy. „Modélisation hybride, identification, commande et estimation d'états de système soumis à des frottements secs : application à un embrayage robotisé“. Grenoble INPG, 2009. http://www.theses.fr/2009INPG0107.
Der volle Inhalt der QuelleThis work deals with the modelling, the identification and the control of systems submitted to dry friction. The thesis is divided into four parts. The first one develops two items: the modelling of complex mechanical system and the state of art of existing models for dry friction. The second part concerns the hybrid modelling of system submitted to dry frition. Based on a new generic model, three models are proposed with increasing complexity. The third part is devoted to the practical identification of dry friction. Methods robust to the quantification noise on the data are presented. The last part is about control: firstly, an original approach of non-linear control is proposed. Then, the parameters uncertainties are accounted into the model bya LPV approach. Thus, a robust controller is obtained. All the presented works are validated on a real test bench of a clutch-by-wire
Murciano, Alex. „Algorithmes de la commande robuste et implémentation logicielle“. Paris 9, 1991. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1991PA090006.
Der volle Inhalt der QuelleSrour, Ali. „Planification robuste pour systèmes robotiques“. Electronic Thesis or Diss., Université de Rennes (2023-....), 2024. http://www.theses.fr/2024URENS072.
Der volle Inhalt der QuelleA key challenge for autonomous systems is operating under real-world uncertainties. Robots rely on models of their environment and themselves for decision- making, but these models are inherently approximations. Consequently, uncertain parameters can lead to significant discrepancies be- tween the intended and actual system behavior. This thesis addresses the issue of para- metric uncertainties by developing trajectories that are intrinsically robust. Through optimizing these trajectories within the closed-loop system using novel concepts of state and in- put sensitivities introduced in this work, the approach enhances robot performance in uncertain conditions. The primary goal of this thesis is to extend and apply these sensitivity-based methods for robust trajectory planning. The validity of the proposed optimization frame- work is empirically assessed through extensive statistical campaigns, both in simulations and real-world experiments, on two widely- used robotic platforms: a quadrotor drone and a robotic manipulator
Andrianiaina, Patrick. „Commande robuste avec relâchement des contraintes temps-réel“. Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00870437.
Der volle Inhalt der QuelleThomas, Jean-Luc. „Contribution a la commande robuste des machines asynchrones“. Paris, CNAM, 1995. http://www.theses.fr/1995CNAM0216.
Der volle Inhalt der QuelleAriza, Urango Ricardo. „Commande robuste multicritère : approche espace d'état et LMI“. Toulouse 3, 2005. http://www.theses.fr/2005TOU30086.
Der volle Inhalt der QuelleRizi, Mohamed Yazid. „Commande performante et robuste d'un écoulement de cavité“. Thesis, Cachan, Ecole normale supérieure, 2015. http://www.theses.fr/2015DENS0023/document.
Der volle Inhalt der QuelleThe cavity flow represents a preferred configuration to study the self-oscillating impingement flows, which constitute an intense noise source in various applications (rail, aviation, etc.). Several studies have been conducted in order to mitigate these oscillations by open or closed-loop control strategies. A reminder of undertaken studies in recent years is presented as well as the encountered difficulties to control of such a device. The main difficulty to control such flows is that their state results from the nonlinear saturation of instabilities by developing on the steady base flow (stable limit cycle against unstable fixed point). The identification of a model is not easy in such a situation. Indeed, the empirical identification based on the frequency response can't be applied, unless a controller stabilizing the unstable fixed point is previously given, in order to preserve the superposition principle during the identification.Our study is mainly based on a closed-loop control because it brings a better energetic gain. We show that a simple time-delayed feedback control is able to stabilize the base flow and robust to changes in cavity configuration. To extract the responsible dynamics of the oscillations appearance in the shear layer, ERA (Eigensystem Realization Algorithm) identification technique is used in closed-loop. The model identifies the unstable modes of the linear dynamics of the cavity as those actually responsible for the oscillation frequencies of the saturated regime. An optimal controller was synthesized from this dynamics. This controller reveals robust to parametric variations of the model
Hetel, Laurentiu Daafouz Jamal Iung Claude. „Stabilité et commande robuste des systèmes à commutation“. S. l. : INPL, 2007. http://www.scd.inpl-nancy.fr/theses/2007_HETEL_L.pdf.
Der volle Inhalt der QuelleHetel, Laurentiu. „Stabilité et commande robuste des systèmes à commutation“. Phd thesis, Institut National Polytechnique de Lorraine - INPL, 2007. http://tel.archives-ouvertes.fr/tel-00202479.
Der volle Inhalt der Quelle