Dissertations / Theses on the topic 'Commande thermique'
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Khiar, Djamel. "Modélisation et commande d'un moteur thermique à allumage commandé." Phd thesis, Université de Valenciennes et du Hainaut-Cambresis, 2007. http://tel.archives-ouvertes.fr/tel-00156791.
Full textd'essence des moteurs thermiques à allumage commandé avec ou sans suralimentation en air.
La présentation se décompose en cinq chapitres.
Le premier chapitre donne un état de l'art concernant la modélisation orientée
«contrôle» et la commande du circuit d'admission d'air-essence. La problématique de
l'estimation et de la commande du couple moteur est également traitée.
Dans le deuxième chapitre, les modèles mis en oeuvre dans la suite du mémoire, et
l'identification de leurs paramètres sont présentés. Les modèles moyens qui sont décrits
permettent de faire un compromis entre complexité du modèle et adéquation aux synthèses des
lois de commande proposées. Le couple moteur n'étant pas mesuré sur un véhicule de série, son
estimation fait l'objet de la fin de ce chapitre.
Le troisième chapitre propose l'utilisation des modèles flous de type Takagi-Sugeno
(TS) pour réaliser le contrôle de différentes variables. Après un rapide rappel de ce type de
modèle, son application à la commande en couple, puis au problème de la richesse (rapport
air/essence à la stoechiométrie près) sont abordés.
Le quatrième chapitre correspond à un certains nombres d'essais réels qui ont été
réalisés sur le banc moteur. En particulier, ces essais ont permis de valider des lois de
commande présentées dans le chapitre précédent sur la commande du circuit d'air et du couple
moteur. Le dernier chapitre présente quelques perspectives à ce travail.
Claquin, Sandrine. "Contribution à la commande d'un procédé thermique." Paris 12, 1994. http://www.theses.fr/1995PA120007.
Full textBagdouri, Mohammed el. "Commande optimale d'un systeme thermique non lineaire." Nantes, 1987. http://www.theses.fr/1987NANT2023.
Full textBagdouri, Mohammed el. "Commande optimale d'un système thermique non-linéaire." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37602537k.
Full textBortolet, Pascal. "Modelisation et commande multivariables floues : application a la commande d'un moteur thermique." Toulouse, INSA, 1998. http://www.theses.fr/1998ISAT0025.
Full textDemaya, Bernard. "Commande floue de systèmes à dynamiques complexes : application à la commande d'un moteur thermique." Toulouse, INSA, 1994. http://www.theses.fr/1994ISAT0043.
Full textArbaoui, Mohammed Ali. "Modélisation et commande prédictive fonctionnelle d'un échangeur thermique à contre courant." INSA de Rouen, 2002. http://www.theses.fr/2002ISAM0013.
Full textHumeau, Jean-Pierre. "Commande de systemes thermiques." Nantes, 1987. http://www.theses.fr/1987NANT2049.
Full textMorosan, Petru-Daniel. "Commande prédictive distribuée. Approches appliquées à la régulation thermique des bâtiments." Phd thesis, Supélec, 2011. http://tel.archives-ouvertes.fr/tel-00641311.
Full textEsqueda, Merino Donovan Manuel. "Contrôle/Commande avancé pour l'optimisation du confort thermique d'un véhicule électrifié." Phd thesis, Supélec, 2013. http://tel.archives-ouvertes.fr/tel-00969132.
Full textBelghith, Safya. "Solutions de quelques problèmes de commande optimale issus de la thermique." Paris 11, 1985. http://www.theses.fr/1985PA112293.
Full textMorales, Mago Simon José. "Commande adaptative multivariable : application à un procédé de traitement thermique rapide." Toulouse 3, 1995. http://www.theses.fr/1995TOU30235.
Full textMorosan, Petru-daniel. "Commande prédictive distribuée. Approches appliquées à la régulation thermique des bâtiments." Thesis, Supélec, 2011. http://www.theses.fr/2011SUPL0004/document.
Full textThe increasing requirements on energy efficiency of buildings, the evolution of the energy market, the technical developments and the characteristics of the heating systems made of MPC the best candidate for thermal control of intermittently occupied buildings. This thesis presents a methodology based on distributed model predictive control, aiming a compromise between optimality, on the one hand, and simplicity and flexibility of the implementation of the proposed solution, on the other hand. The development of the approach is gradually. The mono-zone case is initially considered, then the basic ideas of the solution are extended to the multi-zone and / or multi-source case, including the thermal coupling between adjacent zones. Firstly we consider the quadratic formulation of the MPC cost function, then we pass towards a linear criterion, in order to better satisfy the economic control objectives. Thus, linear decomposition methods (such as Dantzig-Wolfe and Benders) represent the mathematical tools used to distribute the computational charge among the local controllers. The efficiency of the distributed algorithms is illustrated by simulations
Taoud, Jamal Eddine. "Commandes optimales d'un système thermique non linéaire." Nantes, 1991. http://www.theses.fr/1991NANT2076.
Full textMezghani, Mouhiba. "Commandes prédictives et par apprentissage itératif appliquées à la conduite thermique d'un réacteur chimique discontinu." Toulouse, INPT, 1999. http://www.theses.fr/1999INPT015G.
Full textPedone, Dominique. "Application d'un électrolyte polymère protonique à la commande thermique matricielle d'afficheurs électrochromes." Grenoble INPG, 1987. http://www.theses.fr/1987INPG0151.
Full textPedone, Dominique. "Application d'un électrolyte polymère protonique à la commande thermique matricielle d'afficheurs électrochromes." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb376087603.
Full textCézerac, Jérôme. "Conduite thermique d'un réacteur discontinu par la pression du ciel gazeux." Toulouse, INPT, 1995. http://www.theses.fr/1995INPT012G.
Full textHassad, Hassane. "Contribution à l'analyse de la stabilité de la commande prédictive généralisée : application à un processus thermique." Nancy 1, 1993. http://www.theses.fr/1993NAN10053.
Full textPaganelli, Gino. "Conception et commande d'une chaîne de traction pour véhicule hybride parallèle thermique et électrique." Valenciennes, 1999. https://ged.uphf.fr/nuxeo/site/esupversions/461ef0ed-8e58-41db-9aa9-17e74fa98c89.
Full textHuyghe, Emmanuel. "Optimisation d'un contrôleur flou par recuit simulé : application à la commande robuste d'un procédé thermique." Paris 12, 1996. http://www.theses.fr/1996PA120056.
Full textArnal, Etienne. "Modélisation et commande hiérarchisées du bâtiment pour l'amélioration des performances énergétiques, thermiques et optiques." Phd thesis, INSA de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-00873975.
Full textPétrault, Christine. "Optimisation du fonctionnement d'une régulation de climatisation sur véhicule ferroviaire - application aux remorques de T. G. V." Poitiers, 1998. http://www.theses.fr/1998POIT2253.
Full textBodart, Jean-Claude. "Modélisation et commande d'une machine à thermofixer en continu des fibres synthétiques." Mulhouse, 1987. http://www.theses.fr/1987MULH0030.
Full textAubrun, Christophe. "Reconfiguration des lois de commande de systèmes en présence de défauts : application à un système thermique." Nancy 1, 1993. http://www.theses.fr/1993NAN10001.
Full textBenalia, Atallah. "Contribution à la modélisation et la commande robuste du confort thermique au sein d'un habitacle automobile." Paris 11, 2004. http://www.theses.fr/2004PA112016.
Full textThe study which we present, here, is within the framework of a project launched within Valeo and which Concern the modelling and the control of the thermal comfort of the passengers of a car cockpit. The problems in witch we are interested are described folows : -The modelling: for the conception of advanced controls asssuring the task of tracking the trajectory, we need, on the one hand, simple models to have a simple control and, on the other hand, good models to have a good estimation of the thermal control. -The control: from the models developed in the first part, we develop controls who insure the trajectory tracking in the présence of parametric errors. The first part of this thesis concerns the modelization of the thermal comfort inside the car cockpit. To achieve the comfort estimation only from the measurements, we have associated to the comfort model an aerothermic models of the HVAC and a dynamic thermal model of the car cockpit. The second part is at the same time a contribution to the control of nonlinear systems subject to inputs saturation and an application of modern controls to achieve a robust trajectory tracking of the thermal comfort. At first, we developed a new method to generate and track trajectories of nonlinear systems subject to inputs constraints. The basic idea is to change the time parametrization. We show, in this case, that the generation of the trajectory is equivalent to solving a linear systems subject to input constraints. In a second time, we developed three kinds of controls in order to achieve the comfort trajectory tracking : input to state linearization, backstepping and sliding mode. We observes in this study that the input to state linearization method is not robust to parameter variations. The two other type of control presented very good robustness properties. However, the sliding mode has the advantage to be more simple and more adapted for real time implementation
Massieu, Jean-François. "Identification et commande numerique par calculateur de deux processus thermiques." Caen, 1988. http://www.theses.fr/1988CAEN2012.
Full textKadour, Fatima. "Convexité thermique des échangeurs de chaleurs : régime stationnaire et instationnaire." Rouen, 2009. http://www.theses.fr/2009ROUES016.
Full textThis work deals with the thermal property of convexity in the heat exchangers, the convexity is studied along the heat exchanger tubular at steady state and unsteady state in the configuration counter-current and co-current of flow. In the steady state, a linear relation between the entrance temperatures of the hot and cold fluid is determined for a constant state value of hot fluid temperature at the out put (exit). In the counter current heat exchanger, this relation is applied in the co-current configuration also. A non linear relation is founded between the number transfer unity and the thermal rapport flow rate for a constant value temperature of hot fluid at the sortie in the counter current heat exchanger and other for the co-current heat exchanger. In the unsteady state, the convexity coefficient along tubular heat exchangers is studied for a step of hot fluid temperature and a step of mass flow rate at the entrance in counter current and co-current heat exchanger
Jebara, Moaine. "Optimisation et contrôle thermique des outillages dans la mise en oeuvre des polymères." Thesis, Nantes, 2017. http://www.theses.fr/2017NANT4089/document.
Full textEnergy optimization of manufacturing processes remains an up-to-day research topic. In this work, we propose two strategies of improvement concerning the process of plastic materials thermoforming. The aim underling this study is to ensure an effective control of the temperature field at any point on the surface of the heating tooling in order to deliver the needed energy amount by the mold. In order to do this, we have first implemented a strategy for designing the heating sources of tooling (heating plates) used in the polymer processing industry (rubber, plastics and composites). The approach adopted relies on the hypothesis of a 1D heat transfer between the heating plates and the mold. The numerical results obtained illustrate the advantage of the proposed technique which reduces the number of parameters to be optimized while taking advantage of the power of finite element calculations. The results show that the proposed technique is effective and can be furthermore used to reduce energy consumption. The second part of this work concerns the implementation of a control algorithm in order to follow at best a given temperature setpoint. In this problem, we considered successively the heating plate which contains the heating elements. After that, the study was extended to take into account the presence of an empty mold placed on the plate before completing the investigation by considering the case of a mold whose cavity is filled with a polymer. Based on a fine model of heat transfer in the studied system (heating plates, mold and polymer) and considering both multi-input multi-output, an MPC controller was developed for monitoring, in real time and in closed loop, the system under consideration. The control was validated on both digital and experimental setups with dynamic temperature setpoint fields
Nolhier, Nicolas. "Contrôle des procédés thermiques rapides appliqués à la microélectronique." Toulouse, INSA, 1992. http://www.theses.fr/1992ISAT0002.
Full textLabidi, Mouchira. "Optimisation de chaufferies collectives multi-energies : dimensionnement et commande de systèmes de stockage thermique par hydro-accumulation." Thesis, Perpignan, 2015. http://www.theses.fr/2015PERP0007.
Full textThe present work deals with optimizing a multi-energy district boiler by adding to the plant a thermal water storage tank. The effectiveness of such a system depends on how long the stored energy can be kept without considerable degradation. The storage tank should be properly insulated to reduce the rate of heat loss. Thus, firstly, a stratified water thermal storage model is developed and experimentally validated. A parametric study is carried out to determine the influence of geometric and meteorological parameters on heat loss. Next, a reliable sizing method based on a sequential management strategy and a parametric study is proposed. Various energy and economic criteria have been evaluated for a range of thermal storage sizes. The proposed methodology has been applied to many plants managed by Cofely GDF-Suez, our industrial partner. Results highlight the ability of a thermal storage tank (optimally sized and managed) to improve the operation of a multi-energy district boiler and realize significant energy and economic savings. The main drawback of the proposed sequential management strategy lies in not taking into account the future power demand. That is why a strategy based on a Model Predictive Controller (MPC) is likely to improve operation and performance. In order to implement such a controller, the power demand has to be accurately forecasted. As a consequence, a short-term forecast method, based on wavelet-based Multi-Resolution Analysis (MRA) and multilayer Artificial Neural Networks (ANN) is proposed. Both the sequential and the predictive strategies are applied to a northeast France multi-energy district boiler selected as a case study. The main result to retain is that the efficiency of water thermal storage tank is mainly related to its design and the way it is managed. For this case study, the predictive strategy regardless the size of the storage tank, the predictive strategy is more reliable. Furthermore, in all cases an adequately sized and managed thermal storage tank is a profitable investment. It allows the fossil energy consumption to be significantly reduced. The same remark applies to the functioning costs and CO2 emissions
Hardouin, Laurent. "Une méthode originale de contrôle actif des bruits d'écoulements pulsés : étude d'un actionneur, modélisation et commande adaptative du système." Poitiers, 1993. http://www.theses.fr/1993POIT2341.
Full textGazdac, Ana Maria. "Design and control of the dual rotor permanent magnet induction machine for electric traction." Amiens, 2013. http://www.theses.fr/2013AMIE0109.
Full textThe present thesis proposes a new concept of electrical machine, the dual-rotor Permanent Magnet Induction Machine, as an alternative to existing electrical machines for electric traction applications. The concept of dual-rotor Permanent Magnet Induction Machine (PMIM), its operating principle, advantages and disadvantages compared to classical machines as well as design and sizing methodologies are studied. Two analytical pre-sizing methods are thus proposed in this thesis: Stator Geometry Based Method (SGBM) where the sizing algorithm begins from a given stator geometry and Output Power Based Method (OPBM) where the sizing algorithm starts from an imposed output power. The analytical approach is complemented by a study using the Finite Element Method for comparing the PMIM with the IM (Induction Machine) and the PMSM (Permanent Magnet Synchronous Machine) based on their performance, electromagnetic torque, losses and output power. Analysis of the influence of different types of magnetic and conductive materials on the performance of the PMIM is also performed, as well as an investigation on its thermal behavior. The last part of the thesis focuses on the control of the PMIM which required a prior identification of parameters of the equivalent electric circuit. The control strategy, which is based on the Field Oriented Control and is composed of two loops, one asynchronous loop for the cage rotor and one synchronous loop for the PM rotor, is then proposed to validate the dynamic behavior of the PMIM. The validation is done by comparing the results obtained by co-simulation (FEM and External control) and Park model. All obtained results allow building a prototype of the PMIM
Bourgault, Du Coudray Pierre. "Etude et mise en œuvre d'un système de régulation thermique de bâtiment basé sur le principe d'une commande optimale." Paris, ENMP, 1987. http://www.theses.fr/1987ENMP0154.
Full textHu, Liping. "Equivalence au premier ordre des systèmes non linéaires : application à l'identification et à la commande, exemple d'un échangeur thermique." Grenoble INPG, 1990. http://www.theses.fr/1990INPG0084.
Full textBourgault, du Coudray Pierre. "Etude et mise en oeuvre d'un système de régulation thermique de bâtiment basé sur le principe d'une commande optimale." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37603342v.
Full textDirion, Jean-Louis. "Contribution à la mise en oeuvre de réseaux neuronaux pour la modélisation et le contrôle thermique de réacteurs batch." Toulouse, INPT, 1993. http://www.theses.fr/1993INPT027G.
Full textAlhaj, Hasan Ola. "Optimization of building energy consumption using simplified models and new control methods." Thesis, Lille 1, 2014. http://www.theses.fr/2014LIL10162/document.
Full textWith the highly developing concerns about the future of energy resources, the optimization of energy consumption becomes a must in all sectors. A lot of research was dedicated to buildings regarding that they constitute the highest energy consuming sector mainly because of their heating needs. Many proposals of new strategies to minimize building consumption were done. These proposals vary between recommending better insulation, advising change in occupants' behavior and changing the heating control management. This thesis proposes a new control method that helps minimizing the heating consumption and expenses. This method generates an energy plan over a defined prediction horizon respecting the occupants’ thermal comfort. It is based on the application of Monte Carlo method, i.e., a random generator for the heating system scenarios. The aim is to determine the optimal heating plan for the prediction horizon that fulfills the constraints regarding the following three factors: • The thermal comfort of occupants; • The minimization of the energy consumption/expenses; • Load shifting. However, to test this method, an identification of the building thermal behavior was needed. Thus, a building thermal model to simulate the building behavior was developed. This model was meant to be simplified in order to better integrate it in the control process. Furthermore, a new parameter estimation approach as well as a real time temperature control method are presented to ensure the implementation of the optimal predicted plan
Grousson, Frédéric. "Définition et mise en oeuvre de lois de commande à modèle interne pour un moteur thermique à injection directe d'essence." Toulouse, INPT, 2000. http://www.theses.fr/2000INPT056H.
Full textThis study has been achieved in order to improve the direct injection engine control, by using internal model control strategies. Its aim is to optimise the engine performance and to decrease the polluting emissions through a better dynamic control. The use of internal model controls brings robustness in order to face the engine parameter disparity and allows great improvements in the control calibration thanks to a shorter tuning time. The first part gives the outlines of thermic engine operating and focuses on modelization with the final control in view. The second part tackles the implementation of regulation algorithms. Firstly,the air path control uses the state feedback linearization mixed with the predictive control. Secondly, the torque control of the driver's requests is performed with a static inversion using the Jacobian matrix. Finally, a simplified predictive control makes it possible to solve idle speed regulation problems. The last part is devoted to real time and fast prototyping tests. The main simulation results have been validated through experimental tests on a direct injection car
Da, Silva Frédéric. "Méthodologies de réduction de modèles multiphysiques pour la conception et la commande d’une chaîne de traction électrique." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLC022/document.
Full textNumerical simulations are widely used during the design phase of a product but also for the validation of an innovative system. For example, during the conception of an electric vehicle’s powertrain, numerical simulations can be used to select the appropriate electric engine technology or for the development of control strategies taking into account decision criteria such as vehicle’s autonomy, but also its cost and performance.System’s complexity is always increasing, so they require more and more precise simulations in order to better understand the phenomena involved - for example to study iron losses in an electric engine. 3D simulations provide very accurate results to study a body but are still not appropriate today for the study of large scale systems (ie. with many degrees of freedom, many optimization parameters and several areas of Physics). Indeed, 3D simulations computing time cost is directly linked with the number of degrees of freedom. That’s why, in recent years, model order reduction techniques stir developments because they guarantee a good compromise between the computation time and accuracy of results produced by these models.In this study, we are interested in techniques that can be used in an industrial context around two axes: - the study of thermal phenomena (in the power electronics modules) - the study of electromagnetic phenomena (in electric engines)
Fallahsohi, Hossein. "Modélisation dynamique des échangeurs diphasiques, appliquée aux groupes frigorifiques contrôlés par une commande avancée." Phd thesis, INSA de Lyon, 2011. http://tel.archives-ouvertes.fr/tel-00679702.
Full textChen, Qiao. "Microrobotique numérique fondée sur l'utilisation de modules bistables : conception, fabrication et commande de modules monolithiques." Phd thesis, Université de Franche-Comté, 2010. http://tel.archives-ouvertes.fr/tel-00474988.
Full textGuichaoua, Philippe. "Etude théorique, optimisation et simulation numérique d'un procédé de régulation thermique." Saint-Etienne, 1986. http://www.theses.fr/1986STET4006.
Full textAssaf, Riad. "Modélisation des phénomènes de diffusion thermique dans un milieu fini homogène en vue de l’analyse, de la synthèse et de la validation de commandes robustes." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0271/document.
Full textThe work of this thesis concerns the study of the thermal diffusion phenomena to have a model (white box approach) for the analysis, the frequency synthesis and the time validation of robust commands. The Part 1 composed of chapter 1 focuses on the definitions and the interpretations of the integro-differential non-integer operator. The simulation problem in the time domain of the fractional differential systems is specified. Part 2 entitled "Analytical Study" includes two chapters whose objective is to make a detailed analysis of the fractional order behavior, first in a semi-infinite medium (chapter 2), then in a finite medium (chapter 3). Part 3, entitled "Numerical simulation of time responses" combining two chapters (4 and 5), aims the implementation of the "thermal process" plant (model validation of a finite medium) of a simulator of the thermal control loop time responses
Lepreux, Olivier. "Modélisation et commande de la température pour un catalyseur d'oxydation diesel." Phd thesis, École Nationale Supérieure des Mines de Paris, 2009. http://pastel.archives-ouvertes.fr/pastel-00005857.
Full textBen, Aicha Fehd. "Modélisation et commande de systèmes de conversion d'énergie pour l'automobile." Phd thesis, Université de Metz, 2008. http://tel.archives-ouvertes.fr/tel-00878714.
Full textRouizi, Yassine. "Réduction de modèle par identification en convection forcée pour des systèmes soumis à des conditions aux limites thermiques instationnaires : application à l'écoulement le long d'une marche avec contrôle thermique par retour d'état." Phd thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aéronautique, 2010. http://tel.archives-ouvertes.fr/tel-00516968.
Full textLe, guyadec Mathias. "Dimensionnement multi-physique des véhicules hybrides, de leurs composants et de la commande du système." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT071/document.
Full textRoad transportation has a huge impact on the environment. Hybrid electric vehicles (HEV) are an interesting alternative, especially for urban uses. However, HEV are complex systems to design because of the strong interaction between the component sizing, the energy management and the driving cycle.V. Reinbold previously developed a sizing methodology for HEV. The components and the energy management are simultaneously optimized to reduce the fuel consumption of the vehicle over a driving cycle. A specific electromagnetic model is used during the optimization process to describe accurately the electrical machine.As a continuation, we introduce firstly the possibility to deal with discrete variables such as the pole number of the electrical machine. Then, we develop a thermal model of the machine considering the convection exchanges around the end-windings. This analytical lumped parameter thermal network is used during the optimization process after being validated thanks to a finite element model. Uncertainty and sensitivity analysis are used to check the influence of some of the thermal parameters. Finally, the sizing methodology is applied to a series/parallel HEV including two electrical machines
Ligarius, Philippe. "Observateurs de systèmes bilinéaires à paramètres répartis : application à un échangeur thermique." Rouen, 1995. http://www.theses.fr/1995ROUE5041.
Full textChen, Hao. "Modeling and control of a marine current energy conversion system using a doubly salient permanent magnet generator." Nantes, 2014. http://archive.bu.univ-nantes.fr/pollux/show.action?id=83aa318a-2539-4dda-aa76-c57351bf6c09.
Full textSeveral techniques to extract and exploit ocean energy have been recently suggested. The most studied ones are: marine current energy, wave energy and ocean ̐thermal energy. This Ph. D. Thesis fits in this context and its main objective is to contribute on control and modelling of a Marine Current Energy Conversion System (MCECS). This requires multi-physics modelling from the hydrokinetic resource to the electricity grid, design and control of an innovative low speed non-conventional generator and its associated power electronic interfaces. At first, turbine concepts, relative projects and usual chain of tidal energy conversion are presented. Tidal current and turbine modelling are secondly addressed. The dynamic modelling of a low speed Double Salient Permanent Magnet Generator (DSPMG) based on finite element method and Park transformations is developed. Results are compared to classical Permanent Magnet Synchronous Generator (PMSG) to highlight advantages, originality, complexity and principal characteristics of the proposed structure. Suitable currents are then determined and tested by simulation in order to deliver a quasi-constant torque and minimise Joule losses. The mutual effect on the generator performances is detailed. Finally, several control strategies are applied to DSPMG associated to a bidirectional back-to-back converter and are analysed. The main results, based on the developed marine current turbine simulation tool, are presented and discussed with illustration by several realistic studies and Matlab/Simulink assessment