Tesi sul tema "Convertisseur hybride"
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Rachmildha, Tri Desmana. "La commande hybride prédictive d’un convertisseur quatre bras". Thesis, Toulouse, INPT, 2009. http://www.theses.fr/2009INPT044H/document.
In a wide variety of industrial applications, an increasing demand exists to improve the quality of the energy provided by electrical systems. Besides the reliability and availability of electric power, the power quality is now becoming an important issue. Among the causes of the poor power quality, the harmonics are included as the reason which contributes the majority of power failures. Many efforts have been developed to solve the harmonics problem as, for instance, to install special devices such as active filters. This research work deals with the development of direct power control using the hybrid predictive control approach. The hybrid control considers each voltage vector of the converter as a discrete entity which will be applied to control a continuous linear system. One criterion to calculate the optimal voltage vector to apply will be established for the predictive control model. The optimal voltage vector to apply for each switching period, and the corresponding application time will be used to approach the actual value of the state variables of the system to the desired reference point. Two instantaneous power theories will be used, i.e. pq0 and pqr instantaneous power theory for a shunt active power filter application implemented in 3-phase 4-wire system. These instantaneous power theories have been developed to be applied to unbalanced systems using the power variables to obtain the currents that should be injected from active filters. The active filter will produce the required reactive power for the load and compensate the ripple component of active power so that the source only delivers constant active power
Hernández, Juan Manuel. "Commande numérique d'un convertisseur destiné à un véhicule hybride". Toulouse, INPT, 1987. http://www.theses.fr/1987INPT069H.
Hernandez, Juan Manuel. "Commande numérique d'un convertisseur destiné à un véhicule hybride". Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37605896n.
Ben, Abdelghani Hafedh. "Étude, conception et réalisation d'un convertisseur statique hybride multiniveaux tolérant aux défauts". Thesis, Toulouse, INPT, 2016. http://www.theses.fr/2016INPT0042/document.
Given the importance of power converter safety operation in several fields (electric traction, renewable energy, etc ..), it is necessary to examine availability of these systems in the case of malfunction of an IGBT module, a converter leg or a phase machine. Thus, it is essential to develop new hardware architectures and software controls capable of operating at significant power after fault occurence. This thesis deals with a new multilevel fault tolerant hybrid topology. It consists on adding to a 3-phase 3-level NPC (Neutral Point Clamped) inverter, a fourth 3-level FC (Flying Cap) leg. New techniques of fault tolerance parts, namely detection, isolation, reconfiguration and system control during post fault mode, are proposed, analyzed and validated with a 15kW experimental converter prototype
Anas, Guédira. "Système de refroidissement hybride d'un convertisseur CA/CA de 2 kW". Thèse, Université du Québec à Trois-Rivières, 1992. http://depot-e.uqtr.ca/5312/1/000597734.pdf.
Benmansour, Khelifa. "Réalisation d'un banc d'essai pour la commande et l'observation des convertisseurs multicellulaires série : approche hybride". Cergy-Pontoise, 2009. http://biblioweb.u-cergy.fr/theses/09CERG0403.pdf.
The goal of this work is to build a benchmark for control and observation of multicellular converters series using the tools and theories of hybrid systems. The most important contributions of this work are: implementation of an experimental benchmark, using the hybrid approach to model the converter for the purpose of demonstrating the feasibility of this approach by establishing a hybrid automaton with different modes in order to represent the converter, apply high order sliding mode control theory to control a chopper multicellular combined with a RL load and then with a brushed DC motor, study the observability and synthesize observers for intermediate voltages by using the recent proposed theory of 'Z (TN) observability' for the converter from hybrid point of view. Observation strategies for intermediate voltages of the converter are studied: adaptive observer, step by step sliding mode observer and high order sliding mode observer (super twisting algorithm). All methods of control and observation presented in this dissertation have been experimentally validated through the benchmark which we have built
Lachichi, Amel. "Modélisation et stabilité d'un régulateur hybride decourant - Application aux convertisseurs pour pile àcombustible". Phd thesis, Université de Franche-Comté, 2005. http://tel.archives-ouvertes.fr/tel-00083112.
électrique.
Après avoir établi la caractéristique tension-courant des piles à combustible dont la forme justifie l'utilisation de
convertisseurs statiques, les structures à conversion continu-continu sont analysées en s'attardant sur la structure
élévatrice de base et sur la mise en parallèle de plusieurs d'entre elles. Cette dernière est une réponse satisfaisante
au caractère fort courant/basse tension des piles à combustible. Deux modes de réalisation des inductances du
convertisseur sont considérés. Pour le premier, les inductances sont indépendantes. Pour le deuxième, elles sont
réalisées sur le même circuit magnétique.
Un régulateur hybride de courant est ensuite proposé pour le contrôle du convertisseur continu-continu. Celui-ci
autorise une variation importante de la tension d'entrée comme c'est le cas en sortie d'une pile à combustible. Le
régulateur fonctionne à fréquence fixe et englobe les propriétés de trois modes de commande, la commande par
mode de glissement pour bénéficier de sa robustesse et les commandes de type commande à l'amorçage et au
blocage, afin de pouvoir assurer un fonctionnement correct du système, quelle que soit la valeur du rapport
cyclique. La stabilité du système au sens des valeurs moyennes basse et haute fréquences est considérée. Le
modèle moyen ne permettant pas d'étudier la nature exacte du cycle décrit par la trajectoire d'état du système, un
outil basé sur le calcul des multiplieurs de Floquet est élaboré. Il a permis de souligner la robustesse du régulateur
vis-à-vis de variations de l'inductance du convertisseur et de la tension d'alimentation de celui-ci.
Meghnous, Ahmed Rédha. "Commande et observation d’une classe de systèmes linéaires à commutations : Application aux convertisseurs de puissance DC-DC". Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0137/document.
This thesis is dedicated to the control and the observation of a class of switched linear systems (SLS). This class contains the systems that can be represented by a port-Hamiltonian model. A lot of works have been studied SLS for several years using an average modeling approach. Recently, various works have shown that hybrid system theory allows to cope with stabilization, controllability, and observability problems of switched linear systems. However, several problems are still open and need more development such as the design of hybrid observers for SLS that have unobservable modes or the control of systems with reduced number of switching inputs and numerous variable states to control. In this work, we are interested in the design of state observers for a particular class of SLS using both the average and the hybrid port-Hamiltonian models. This formalism has the necessary tools to study and establish the stability of the observation errors. At the beginning, a nonlinear observer based on the average modeling is proposed. Next, a hybrid observer is designed for switched linear systems. This observer takes into account the unobservable operating modes of the system. The second point of our work concerns the design of control laws for the considered class of SLS. At first, two Lyapunov-based control laws have been established using either an average model or a hybrid model of the system. A hybrid optimal control based on the maximum principle of Pontryagin and the computation of singular arcs has been also proposed. Finally, a hybrid predictive control based on a discrete model of the system is synthesized. Simulation results and an experimental implementation on a SEPIC converter are given to show the efficiency of the proposed methods. Our motivation to study such a converter is mainly due to its particular topology that includes observable and unobservable subsystems. It is also known to be difficult to be controlled because only one switching input is used to control four state variables
Tabart, Quentin. "Modélisation et commande d'une interface à base d'un convertisseur NPC pour système de stockage hybride dédié micro-réseau". Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT076.
The increasing rise of distributed generation integration in the energy mix is a challenging issue. Indeed distributed generation based on renewable energy sources like solar and wind creates fluctuation of the grid’s parameter and can lead to minor issues like harmonics, over or under voltages, flicker and so on, or to major failure like blackouts. The concept of microgrid associated with energy storage systems is seen as a potential solution to increase renewable energy integration to the grid, while increasing efficiency and reliability at the same time.A review of energy Storage technologies is carried out and it results that currently none of these technologies can offer energy and power capabilities while fast response and efficiency at the same time. The use of Hybrid Energy Storage System allows to reach such performance. For this thesis, a Li-Ion and a Vanadium Redox Flow Battery have been selected for their good power and energy abilities respectively, and their high round trip efficiency.The main contribution of this work lies in the structural limits analysis of the topology and the control algorithm for the four leg three level NPC used as a multipurpose interface between a Renewable Energy Source, a Hybrid Energy Storage System and a Microgrid. The effectiveness of the proposed algorithms and limits model are tested both in simulation and experiments. Ancillary services like frequency and voltage support are then developed and tested in simulation under various conditions
Allali, Nicolas. "Convertisseur haut rendement à dimensionnement réduit pour batterie hybridée puissance/énergie de véhicule électrique : Principe de source de courant contrôlée". Thesis, Ecole centrale de Lille, 2016. http://www.theses.fr/2016ECLI0018/document.
This thesis deals with the development of a power conversion solution, allowing for the coupling of two similar voltage sources. Applied to a combined battery storage sys-tem power/energy for electric vehicles, the proposed solution presents a compromise between production costs, mass and energy performance, providing a better solution than those currently in existence. As such, the two voltage sources are coupled in series with a controlled current source. A structure of the converter allowing the coupling is studied and compared to a classic structure. Finally a demonstrator on a reduced voltage scale has been realized and shows advantages of this converter solution
Ammann, Frédérick. "Conception d'un convertisseur d'électronique de puissance pour un système de stokage hybride batteries/super-condensateurs : application dans les véhicules électriques". Mémoire, École de technologie supérieure, 2012. http://espace.etsmtl.ca/1028/1/AMMANN__Fr%C3%A9d%C3%A9rick.pdf.
Nguyen, Phi-Hung. "Impacts des modèles de pertes sur l’optimisation sur cycle d’un ensemble convertisseur – machine synchrone : applications aux véhicules hybrides". Thesis, Cachan, Ecole normale supérieure, 2011. http://www.theses.fr/2011DENS0049/document.
Almost all studies of permanent magnet synchronous machines (PMSM) for for hybrid vehicle applications relate to their performances on a specific point of a driving cycle of the vehicle (the base point, the point at high speed or the most used point). However, these machines often operate at different torques and at different speeds. This thesis studies therefore PMSM performances in order to optimize during an entire driving cycle. In this thesis, the author contributed to develop models of torque, field weakening, copper losses and iron losses and methods of calculating these losses at no-load and at load for four MSAP (three concentrated flux machine and a surface mounted PMSM) and for three driving cycles (New Eurepean Driving Cycle, Artemis-Urban and Artemis-Road). An experimental validation of these models was realized on a test bench with two prototypes of MSAP. Then, the MSAP were sized for a minimization of average power losses during the cycle and of the RMS current at the base point. This combination is designed to increase the efficiency of the electrical machine and minimize the size of the associated voltage inverter. This problem of multi-objective optimization was performed using the genetic algorithm, Non-Dominated Sorting Genetic Algorithm (NSGA-II). Thus, a Pareto front of optimal solutions can be derived. The impacts of loss models (at no-load and at load) on the PMSM optimization during the cycle are studied and the interest of each model is presented. Models and calculation methods proposed in this thesis can be applied to all cycles, at different MSAP and for other applications
Frey, David. "Convertisseurs haute tension : Contribution à l'intégration de la fonction interrupteur". Phd thesis, Grenoble INPG, 2003. http://tel.archives-ouvertes.fr/tel-00407754.
Trinh, Trung hieu. "Réseaux de micro convertisseurs, les premiers pas vers le cicuit de puissance programmable". Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENT007/document.
DC/DC power converters are widely used for domestic and industrial applications with powers from a few watts to several MegaWatts. Generally, for each application, an appropriate converter is designed to meet the specifications. So, with a new application corresponds a new converter leading to systematic review and re-design of a new structure of conversion which is costly in time and money. Eventually, it can lead to specific technological developments which also have an impact on the cost of developing solutions for power electronics. To circumvent these difficulties, my thesis focuses on the process of Micro Converters Networks (MiCoNet) which proposes a new approach to respond fully flexibely to any specifications. The aim of this approach is to create a unit component, called elementary cell, able to respond to any kind of specifications by connecting in series and/or parallel several of these elementary cells. It permits to adjust the voltage and/or current of the converter to achieve. Therefore, my thesis is divided into two main parts. The first part consists in the design and the integration of the elementary cell used in the MiCoNet. The second discusses the configuration strategies used in the MiCoNet and association modes of elementary cells which can respond to any specification
Van, Gorp Jérémy. "Diagnostic et observation d'une classe de systèmes dynamiques hybrides. Application au convertisseur multicellulaire série". Phd thesis, Université de Valenciennes et du Hainaut-Cambresis, 2013. http://tel.archives-ouvertes.fr/tel-00933659.
Thounthong, Phatiphat. "CONCEPTION D'UNE SOURCE HYBRIDE UTILISANTUNE PILE A COMBUSTIBLE ET DESSUPERCONDENSATEURS". Phd thesis, Institut National Polytechnique de Lorraine - INPL, 2005. http://tel.archives-ouvertes.fr/tel-00083105.
supercondensateurs, destiné à fonctionner dans un véhicule à pile à combustible sont
présentés dans cette thèse. Deux modes de commande sont détaillés. Leur but est de permettre
un fonctionnement en quasi-statique de la pile à combustible afin de limiter les contraintes
mécaniques sur la pile en accordant les débits de gaz à la demande en courant. Les
supercapacités interviennent lors du non-fonctionnement de la pile, lors de régimes
transitoires ou de régimes de récupération.
Le dispositif développé utilise deux modules de supercapacités SAFT. Il est connecté à un bus
continu 42 V par un convertisseur continu-continu deux quadrants, la pile à combustible étant
connectée au bus continu par un convertisseur élévateur. Le contrôle des courants est réalisé
de manière analogique. Le contrôle des tensions et les algorithmes d'estimation utilisent une
carte numérique dSPACE. Les résultats expérimentaux présentés, obtenus avec une pile de
500 W, ont souligné la lenteur naturelle des réponses de la pile à combustible et l'apport des
supercapacités pour des applications automobiles. Celles-ci améliorent grandement la
dynamique et le contrôle énergétique du système.
Soulard, Juliette. "Étude paramétrique des ensembles convertisseur machine à aimants : Application à une structure électromagnètique monophasée hybride à aimants permanents et à alimentation électronique". Paris 6, 1998. http://www.theses.fr/1998PA066343.
Ali, Marwan. "Nouvelles architectures intégrées de filtre CEM hybride". Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2012. http://tel.archives-ouvertes.fr/tel-00847144.
Camara, Mamadou Baïlo Camara. "SUPERCONDENSATEURS POUR ÉCHANGE DYNAMIQUE D'ÉNERGIE A BORD DU VÉHICULE ÉLECTRIQUE HYBRIDE: Modélisation, étude des convertisseurs et commande". Phd thesis, Université de Franche-Comté, 2007. http://tel.archives-ouvertes.fr/tel-00465581.
Meghnous, Ahmed Rédha. "Commande et observation d'une classe de systèmes linéaires à commutations : Application aux convertisseurs de puissance DC-DC". Phd thesis, INSA de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-01015252.
Trinh, Trung Hieu. "Réseaux de micro convertisseurs, les premiers pas vers le circuit de puissance programmable". Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00824938.
Baudoin, Sylvain. "Étude d’un système hybride pile à combustible / microturbine dans un contexte microréseau rural isolé". Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0440/document.
Rural areas, often far away from the main electric grid, are particularly suitablefor the deployment of microgrids (MG). This type of grid allows a restructuring oftoday's power grid in order to integrate more efficiently renewable power sources.Biogas, produced by anaerobic digestion of agricultural wastes, is a renewable energyresource available in rural areas. This resource, easily stored in large quantities, isparticularly interesting for weak grids like a MG. Energy sources using biogas are morereliable and less dependent on stochastic phenomena such as wind or solarillumination.After a state of the art on the different technologies enhancing biogas, it is clearthat a hybrid system consisting of a SOFC type fuel cell and a microturbine (MT)achieves the best electric efficiency with low environmental impact.The overall objective of the thesis is to study the SOFC / MT system as themain power source in an isolated rural MG context. For this purpose, a model of thesystem was carried out by focusing on the elements that affect the dynamics of thesystem's electrical signals. The hybrid system was then sized in order to maintainoptimal electrical performance, and a unique 3LNPC multilevel converter is used tointegrate the hybrid system to the MG. As a fuel cell is sensitive to load changes(affecting its performance and lifespan), the first objective of the control strategyapplied to the 3LNPC converter is to regulate the power of the SOFC at its nominalvalue. The MG must be able to operate autonomously when islanded, thus the secondobjective of this strategy is to set the grid voltage and frequency.The controllers of the control strategy are designed paying particular attention tothe robustness. The operation of the SOFC / MT hybrid system, driven by a single3LNPC type converter equipped with an innovative control strategy, has been testedand validated in simulation and experimentally in the MG platform of ESTIAResearch
El, Guezar Fatima. "Modélisation et simulation des systèmes dynamiques hybrides affines par morceaux : exemples en électronique de puissance". Toulouse, INSA, 2009. http://eprint.insa-toulouse.fr/archive/00000316/.
Piecewise affine hybrid systems are an important and simple class of hybrid dynamical systems. A piecewise affine system is composed of several dynamical affine subsystems and of switching rules that decide the behavior of the active subsystem during each switching interval. Recently, it has been shown that this class of systems is very rich in nonlinear phenomena such as bifurcations and chaos. Piecewise affine hybrid systems arise in many engineering applications such as DC-DC converters. Modeling of such converters is given using classical averaged or discrete models. However, a possible approach to analyze these circuits can be done using hybrid models. The behavior of a hybrid system is based on events' existence. Simulation which is a simple tool to analyze these systems, requires an algorithm that gives exact switched dates. Existing detection techniques, that are essentially based on approximated schemes, may lose some events and then diverge drastically from the real trajectory of the simulated hybrid system. Our aim within this thesis is to provide a fast and accurate simulation tool of 2nd order planar piecewise hybrid systems, which is based on analytical expressions of solutions. Our semi-analytic approach gives switching instants of state event and periodic temporal events. Our algorithm is implemented in a Scicos toolbox, another alternative in Matlab is also available
Nguyen, Phi-Hung. "Impacts des modèles de pertes sur l'optimisation sur cycle d'un ensemble convertisseur - machine synchrone : applications aux véhicules hybrides". Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2011. http://tel.archives-ouvertes.fr/tel-00648727.
Djondiné, Philippe. "Étude des comportements chaotiques dans les convertisseurs statiques". Thesis, Cergy-Pontoise, 2015. http://www.theses.fr/2015CERG0768/document.
This thesis deals with the analysis of chaotic behaviors in serial multicellularconverters. These switching systems can have a variety of complex phenomenaassociated with bifurcations and chaos. Knowing that a power converter that has a purely dissipative load cannot generate chaotic behavior, we've in the first part of this thesis, we connected a two-cell chopper to a nonlinear load not strictly dissipative and we've analyzed its behaviors by using some basic dynamic properties and thus presented the routes to chaos. The end of this part was devoted to the study of the 5-cell chopper which is a generalization of the two-cell chopper. In order to eliminate the chaotic behavior, the second part was devoted to the synthesis of a controlled law based on hybrid modeling of Petri nets for the regulation of capacitor voltages and current load
Vidales, Luna Benjamin. "Architecture de convertisseur intégrant une détection de défauts d'arcs électriques appliquée au sources d'énergie continues d'origine photovoltaïques". Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0040.
In this research work, the development of a multilevel inverter for PV applications is presented. The PV inverter, has two stages one DC/DC converter and one DC/AC inverter, and is capable of generating an AC multilevel output of nine levels, it's a transformerless inverter and uses a reduced number of components compared to other topologies. The conception of a novel DC/DC converter is capable of generating two isolated DC voltage levels needed to feed the DC/AC stage. This DC/DC stage is developed in two variants, buck and boost, the _rst to perform the reduction of voltage when the DC bus is too high, and second to increase the voltage when the DC bus is too low to perform interconnection with the grid through the DC/AC inverter. This is achieved thanks to the parallel functioning of the developed topology, which make use of moderated duty cycles, that reduces the stress in the passive and switching components, reducing potential losses. The validation of the PV inverter is performed in simulation and experimental scenarios. In the other hand, the response of the inverter facing an arc fault in the DC bus is studied by performing a series of tests where the fault is generated in strategic points of the DC side, this is possible thanks to the design and construction of an arc fault generator based in the specifications of the UL1699B norm. During the tests is observed that with the apparition of an arc fault, there is a lost in the half-wave symmetry of the AC multilevel output voltage waveform, generating even harmonics which aren't present during normal operation, only when an arc fault is present in the DC system. The monitoring of even harmonics set the direction for developing the detection technique. Since the magnitude of even harmonics in the inverter is very low, the total even harmonic distortion is employed as a base for the detection technique presented in this thesis. The effectiveness of this method is verified with a series of tests performed with different loads
Phattanasak, Matheepot. "Étude, modélisation et mise en oeuvre de convertisseurs DC-DC isolés multiport et modulaires". Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0193/document.
This thesis deals with architecture and control of hybrid electrical energy sources where the main source is a fuel cell and the auxiliary one, supercapacitors. Among the various possible power electronics architectures, an isolated multi-port converter using a multi winding transformer has been realized. Each element of the device (fuel cell, supercapacitors and load) is connected to one winding by a voltage inverter. The control of energy exchanges is performed by controlling the phase shifts between voltage waveforms delivered by inverters. The use of identical converters and control modes ensures the modular nature of the system. Transformer modeling is performed in general manner for a N-port transformer and the development of a polygon model simplifies the calculation of the energy exchanges between ports. Two control methods are presented. The first method, more conventional, uses a linear regulator to control the power delivered by the fuel cell and the output voltage is controlled via the electrostatic energy stored in the output capacitor. The limitation of the current variation delivered by the fuel cell is performed by limiting the variation of the input power. The second method is based on the concept of flatness. Energies stored in the capacitors are the flat output variables whereas the powers exchanged between the main source and the other ports are the control variables. It was then possible to determine the trajectory of the flat outputs to meet various constraints like the limitation of the current variation delivered by the fuel cell, the fuel cell maximum power, and the current of the output capacitor during startup. Both control methods have been validated in normal, overload and recovery modes by numerical simulation and experimental results. Rather than using a 4-port converter requiring control of six energy exchanges between ports, the paralleling of two 3-port converters connected to the same main source and load using simulation is studied. The presence of these two converters allows optimizing the system efficiency according to the considered operating point
Biron, Frédéric. "Conceptions de profils d'impédances actifs pour la compensation des pertes, la réduction de taille et l'augmentation de sélectivité de structures de filtrages planaires microondes". Limoges, 2001. http://www.theses.fr/2001LIMO0026.
Chauvin, Alan. "Contribution à l'optimisation globale pour le dimensionnement et la gestion d'énergie de véhicules hybrides électriques basée sur une approche combinatoire". Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0101/document.
Hybridization of power sources for embedded applications becomes an interesting solution to respect environmental legislation and achieve a higher energy efficiency. However, the choice for components sizing and the energy management strategy need to meet specifications while reducing costs. To solve this optimization problems including several types of variables can be complex because of non linearities included in the formulated problem. Therefore the use of effective solving tools, able to provide a reliable solution, is required. In this thesis, a global optimization method is proposed for the design and the optimal control of hybrid vehicles based on combinatorial optimization, particularly on integer linear programming. From a non-linear optimization problem, the initial problem is reformulated into a multitude of integer linear sub-problems for which a parallel Branch & Bound algorithm is executed. In order to solve large-scale problems, a second algorithm based on the Branch & Cut is developed. This method is used for the study of a hybrid power supply system of a mini-excavator electric. The optimization problem, where energy constraints and aging constraints are implemented, is evaluated according to several parameters and specifications. Finally, this approach is also applied for the optimization of trajectories for a synchronized multi-actuators system
Phattanasak, Matheepot. "Étude, modélisation et mise en oeuvre de convertisseurs DC-DC isolés multiport et modulaires". Electronic Thesis or Diss., Université de Lorraine, 2012. http://www.theses.fr/2012LORR0193.
This thesis deals with architecture and control of hybrid electrical energy sources where the main source is a fuel cell and the auxiliary one, supercapacitors. Among the various possible power electronics architectures, an isolated multi-port converter using a multi winding transformer has been realized. Each element of the device (fuel cell, supercapacitors and load) is connected to one winding by a voltage inverter. The control of energy exchanges is performed by controlling the phase shifts between voltage waveforms delivered by inverters. The use of identical converters and control modes ensures the modular nature of the system. Transformer modeling is performed in general manner for a N-port transformer and the development of a polygon model simplifies the calculation of the energy exchanges between ports. Two control methods are presented. The first method, more conventional, uses a linear regulator to control the power delivered by the fuel cell and the output voltage is controlled via the electrostatic energy stored in the output capacitor. The limitation of the current variation delivered by the fuel cell is performed by limiting the variation of the input power. The second method is based on the concept of flatness. Energies stored in the capacitors are the flat output variables whereas the powers exchanged between the main source and the other ports are the control variables. It was then possible to determine the trajectory of the flat outputs to meet various constraints like the limitation of the current variation delivered by the fuel cell, the fuel cell maximum power, and the current of the output capacitor during startup. Both control methods have been validated in normal, overload and recovery modes by numerical simulation and experimental results. Rather than using a 4-port converter requiring control of six energy exchanges between ports, the paralleling of two 3-port converters connected to the same main source and load using simulation is studied. The presence of these two converters allows optimizing the system efficiency according to the considered operating point
Lale, Adem. "Architectures d'intégration mixte monolithique-hybride de cellules de commutation de puissance sur puces multi-pôles silicium et assemblages optimisés". Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30174/document.
Currently, the standard 2D hybrid power module (power converter) is the reference technology for the medium and high power market. This hybrid power module is a discrete multi-chip case. The semi-conductor chips are interconnected by wire-bonding to form switching cells. The wire-bonding interconnection technology is a limiting factor in terms of electrical and thermomechanical performances, three-dimensional integrability and productivity. The aim of this thesis is to study new architectures of very integrated power converters. Compared to the so-called hybrid reference technology, the proposed architectures aim at a greater degree of integration, with an integration at both the semi-conductor level (monolithic integration) and the packaging level (hybrid integration). Monolithic integration consists in integrating switching cells into new multi-terminal macro-chip architectures. Hybrid integration consists in developing of new technologies to assemble these macro-chips. To validate the different proposed integration architectures, the first step was to study and validate the operating modes of the new chips by SentaurusTM TCAD simulations. Then, the multi-terminal chips were realized in the micro and nanotechnology platform of LAAS-CNRS laboratory. Finally, the chips were bonded on PCB substrates to realize power converter circuit prototypes. The highly integrated switching loop presents a stray inductance loop lower than one nanohenry, wich is an important improvement as compared to the values reported in literature (about 20 nH)
Da, Silva Joao Lucas. "Design and control of a multicell interleaved converter for a hybrid photovoltaic-wind generation system". Phd thesis, Toulouse, INPT, 2017. http://oatao.univ-toulouse.fr/19318/7/DASILVA_JoaoLucas.pdf.
Zandi, Majid. "Contribution au pilotage des sources hybrides d’énergie électrique". Thesis, Vandoeuvre-les-Nancy, INPL, 2010. http://www.theses.fr/2010INPL071N/document.
This thesis deals with the control of electrical hybrid system. The main sources consist in an association of photovoltaic and fuel cell system. The secondary sources are a bank of batteries and a bank of supercapacitors. The sizing of secondary sources is realized to manage the power during the transient state and provide extra energy when the power of main sources is insufficient in steady state. The main sources provide the essential energy of the electrical hybrid system during steady state. The control of energy flows and power tracking used in this thesis are based on the flatness technique. This control system allows obtaining high dynamic properties in the power tracking and the regulation of system. The supervisor for sharing the power between the different storage devices is realized thanks to a fuzzy logic controller. This controller ensures that the bank of supercapacitors with its interface converter is used as a power filter and provides the energy in transient states. However, the bank of batteries provides or absorbs the energy in longer periods especially during recovery or overload modes
Payman, Alireza. "Contribution à la gestion d'énergie dans les systèmes hybrides multi-sources multi-charges". Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL038N/document.
This work deals with a nonlinear control strategy of an electrical hybrid system which is composed of a fuel cell as the main source and a supercapacitor bank as the auxiliary source. Any algorithm commutation is not used in the proposed control strategy whereas the system works in different operating modes. After a review of various structures of the electrical hybrid systems and different control methods of these systems, two new approaches are developed. The first one is flatness-based method to ensure the energy management in the proposed hybrid systems and generally in a multi source / multi loads system. The proposed strategy is based on generation of a reduced-order model of the system. The energy management is carried out through the reference trajectories of the stored electrostatic energy of the system. The effect of the proposed control method on design of the system components (inductors and capacitors) is explained. In the second approach, the total energy stored in the choppers is taken into account to control the load converters of a multi-source/multi load system by use of the input/output linearization method. A nonlinear observer is proposed to estimate the variation of voltage-power output characteristic of the fuel cell which leads to an optimal performance of the hybrid system. The simulation and experimental results prove validity of the proposed control strategy
Zandi, Majid. "Contribution au pilotage des sources hybrides d’énergie électrique". Electronic Thesis or Diss., Vandoeuvre-les-Nancy, INPL, 2010. http://www.theses.fr/2010INPL071N.
This thesis deals with the control of electrical hybrid system. The main sources consist in an association of photovoltaic and fuel cell system. The secondary sources are a bank of batteries and a bank of supercapacitors. The sizing of secondary sources is realized to manage the power during the transient state and provide extra energy when the power of main sources is insufficient in steady state. The main sources provide the essential energy of the electrical hybrid system during steady state. The control of energy flows and power tracking used in this thesis are based on the flatness technique. This control system allows obtaining high dynamic properties in the power tracking and the regulation of system. The supervisor for sharing the power between the different storage devices is realized thanks to a fuzzy logic controller. This controller ensures that the bank of supercapacitors with its interface converter is used as a power filter and provides the energy in transient states. However, the bank of batteries provides or absorbs the energy in longer periods especially during recovery or overload modes
Aissaoui, Jalel. "Convertisseurs hybrides à facteur de déplacement ajustable". Thèse, Université du Québec à Trois-Rivières, 1990. http://depot-e.uqtr.ca/5379/1/000589273.pdf.
Hadjeras, Sabrina. "Hybrid control of power converters". Thesis, Toulouse 3, 2019. http://www.theses.fr/2019TOU30087.
This thesis proposes the design of hybrid control laws for power electronics converters. These new type of control laws are based on some hybrid models which capture the macroscopic dynamical behaviors of such electronic devices, essentially its hybrid nature. In the context of the regulation of DC-DC or AC-DC converters, applying the hybrid dynamical theory, the proposed control laws are proved to ensure the stability of the closed loop as well as some LQ performances. For a half-bridge inverter (DC-AC converter), a hybrid control law is proposed in order that the output voltage tracks a desired sinusoidal reference. In the case of unknown load, an adaptive control law is coupled to the hybrid control allowing the estimation of the load and therefore leading to a more precise regulation or tracking. Notice that in order to achieve a perfect regulation or tracking, an infinite frequency is often mandatory for the proposed control laws, which is inappropriate in practice. To tackle this problem, a space- or time-regularization are added to the hybrid closed-loop ensuring a dwell time between two consecutive jumps and reducing thus drastically the switching frequency
Payman, Alireza. "Contribution à la gestion d'énergie dans les systèmes hybrides multi-sources multi-charges". Electronic Thesis or Diss., Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL038N.
This work deals with a nonlinear control strategy of an electrical hybrid system which is composed of a fuel cell as the main source and a supercapacitor bank as the auxiliary source. Any algorithm commutation is not used in the proposed control strategy whereas the system works in different operating modes. After a review of various structures of the electrical hybrid systems and different control methods of these systems, two new approaches are developed. The first one is flatness-based method to ensure the energy management in the proposed hybrid systems and generally in a multi source / multi loads system. The proposed strategy is based on generation of a reduced-order model of the system. The energy management is carried out through the reference trajectories of the stored electrostatic energy of the system. The effect of the proposed control method on design of the system components (inductors and capacitors) is explained. In the second approach, the total energy stored in the choppers is taken into account to control the load converters of a multi-source/multi load system by use of the input/output linearization method. A nonlinear observer is proposed to estimate the variation of voltage-power output characteristic of the fuel cell which leads to an optimal performance of the hybrid system. The simulation and experimental results prove validity of the proposed control strategy
Ben, Salah Jaâfar. "Analyse et commande des systèmes non linéaires complexes : application aux systèmes dynamiques à commutation". Phd thesis, Université Claude Bernard - Lyon I, 2009. http://tel.archives-ouvertes.fr/tel-00599364.
Hamini, Ismaël. "Méthodes de moyennisation et systemes dynamiques hybrides : application à un ensemble convertisseur-machine". Vandoeuvre-les-Nancy, INPL, 2003. http://www.theses.fr/2003INPL084N.
The averaging theory gives a first solution to the problems of the analysis of hybrid systems. This approach applied to time varying systems leads to time invariant models that is simplified models which allow the analysis and control law design for these systems. The conditions of applicability, the properties and the limits of the models generated by these methods are defined in chapter JI of this thesis. Their field of validity, their asymptotic behavior and the relationships to steady operations of the exact solutions are important properties which make it possible to characterize the studied systems. The drives at variable speed fit largely in the context of the complex systems for which the traditional approaches quickly appeared limited because of their complexity (great dimension, bad conditioning. . . ). Many research tasks on the theoretical and methodological level were undertaken since the beginning of the years 1970 for modeling, analysis and synthesis of these systems. The application of averaging theory to PWM asynchronous machines, a typical hybrid system, is considered. A rigorous justification of the approximate modal usually used by engineers is given. Ln addition to provide an average modal, the proposed approach gives information on the precision of the approximation according to the speed of the machine and makes it possible to calculate an estimate of the variations around the solution of the average modal. A first order average modal is used to derive an estimate of these variations. This estimate is compared to the actual behavior and appears as a good approximation of the actual behavior of the PWM asynchronous machine. An extension of the proposed method to two time scale systems is also discussed
Amghar, Bilal. "Modélisation, observabilité et commande de convertisseurs multicellulaires parallèles dans un environnement dédié". Phd thesis, Université de Cergy Pontoise, 2013. http://tel.archives-ouvertes.fr/tel-00880757.
Dehghanikiadehi, Abbas. "Commande vectorielle innovante pour véhicules électriques ou hybrides". Thesis, Université Clermont Auvergne (2017-2020), 2017. http://www.theses.fr/2017CLFAC012/document.
Over the last decade, the interest for low-carbon vehicle technologies has surged among both governments and automotive manufacturers across and beyond the European Union (EU). Great hopes have been put, first, on biofuel vehicles and more recently on electric vehicles (EVs) and hybrid electric vehicles (HEVs) as key technologies to mitigate climate change, enhance energy security and nurture new industry branches within the automotive sector. So electrification of vehicles has been seen as a key strategy to reduce CO2 emissions from the transport sector. The main challenge toward EVs and HEVs is to keep driving for longer distance (which has been always fields for competition among traction industries) as well as lifetime battery cells as storage system. As a result, these indicate importance of power converter efficiency as a key gate for next generations of these up-coming vehicles. The next parameter is the quality of output voltage/current (especially by suppressing low-order harmonics) to reduce the size of filtering. The aim of this thesis is to achieve better efficiency and output voltage/current Total Harmonic Distortion (THD) by proposing novel power converter and associated Pulse Width Modulation (PWM) methods while imposing modification on power converter topology. As a result, dual-inverter is proposed to supply open-end motor from both sides. To this aim, three PWM methods are suggested as: The first one, Modified Space Vector Modulation (MSVM) for dual-inverter supplied by single dc source, improves efficiency by 4-5% (while having lower switching losses), and reduces Common Mode Voltage (CMV) levels by 66%, as well. The voltage/current harmonics are analytically analyzed which shows mainly better performance. Effective switching frequency is also reduced by 66% due to the reduction of number of commutations. In the second one, Near State PWM (NSPWM) is adapted for dual-inverter supplied by single dc source in order to eliminate triplen harmonics (therefore Zero Sequence Voltage, ZSV) and improve efficiency (by 3-4%) compared to Space Vector Modulation (SVM). Additionally due to avoiding use of zero vectors, CMV is improved by 66%. While having 8 commutations instead of 12 in SVM, effective switching frequency is improved by 33%. And finally, the third proposed method deals with NSPWM for dual-inverter supplied by two isolated dc sources wherein efficiency and CMV levels show the same performance as previous one. However, in this method, voltage THD is highly reduced compared to SVM. Triplen harmonics of the output voltage are inherently suppressed by the structure. These 3 proposed methods are analytically studied and their performances are step by step simulated in Matlab/Simulink environment. Then the methods are implemented in dualinverter fed open-end motor in laboratory setup; and the results are compared with these of SVM. Finally, it is found that novel proposed methods are so competitive solutions to be applied in HEVs and EVs and bring superior efficiency and voltage/current harmonic features
Sechel, Pierre. "L'architecture hybride des convertisseurs statiques utilisés dans le pilotage des entraînements asynchrones en traction électrique (1970-1995)". Besançon, 2004. http://www.theses.fr/2004BESA2037.
The purpose of the research hypotheses generated by this present work is to study the phenomena of hybridization which are at the origin of the two families of static converters used in asynchronous drives, i. E. I and U converters. The 2-stage static converters which today provide the supply to machines with asynchronous motors are the final result of a complex process which lasted a score of years, during which a number of technological developments originating from other methods of traction were progressively combined, after the fashion of rectifier bridges and choppers with inverters controlled by pulse-width modulation. And yet, the density of the technologies used in double conversion systems is not sufficient to explain the complexity of asynchronous drives. Other criteria which come within the province of the theoretical statement of solid mechanics will help us to understand why it took two decades to standardize the conversion systems and to get rid of the blockages resulting from technical prerequisites. This is why the retrospective analysis of circuits and sections of installation relating to applications representative of asynchronous technologies is not dissociated from the theoretical foundations which it entailed. A theoretical mediation which often brings out the only pertinent criteria which are able to introduce a relation of cause and effect between a technical decision and the set of constraints which determined this decision. Seen in this light, the analytical work which is to be undertaken will lead us to investigate chronologically the current variator and its sub-systems made up of rectifier blocks and chopper blocks in order to identify the influence of line voltage on the circuits. Then investigation will turn towards the voltage inverter and the use of the laws of intersection of pulse-width modulation in the functions of vector control used in the start-up phase and of scalar control beyond the nominal speed. Finally, observation should be undertaken of the phenomena of commutation in the transmission of motor torque with a current inverter
Marzouk, Mounir. "Développement de chargeurs intégrés pour véhicules hybrides plug-in". Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT088/document.
This thesis consists on the design and realization of a plug-in hybrid vehicle integrated tractiondrive supply. The work turns to a solution of a mutualized converter, in the objective to imagine asolution which shared drive and battery chargers modes, the three-level NPC topology has beenretained. The single phase charger is based on an interleaved PWM rectifier, and motor windings areused as smoothing inductors. A double-boost PFC configuration is introduced to ensure the threephasecharger. Passives are sized in each configuration in order to take in account the whole currentconstraints (LF and HF). The PFC behavior is based on the resonant controllers. Then, a 5 kWprototype has been realized to validate the different application modes.In a second part, a single-stage isolated charger based on a Dual-Active-Bridge (DAB) isproposed. The topology is modeled to the fundamental and the PFC control law is studied. A threephaseconfiguration is simulated in order to achieve higher charging powers and to reduce batterycurrent low-frequency ripple
Breit, Fabrice. "Contribution à l'intégration hybride de puissance : étude de l"environnement diélectrique des semiconducteurs". Toulouse 3, 2003. http://www.theses.fr/2003TOU30246.
Bâja, Mihai. "Contribution à la commande stabilisante des convertisseurs de l’électronique de puissance". Rennes 1, 2009. http://www.theses.fr/2009REN1S168.
Switch mode power converters are electrical circuits controlled by electronic switches that allow controlling the power supply of electrical circuits or equipments. We propose a stabilizing control method, for the control of DC-DC power converters, based on energetic considerations and using a Lyapunov function. The control is generated directly under Boolean form. The Lyapunov function candidate is unique for the different system’s modes. It allows defining a switching sequence that stabilizes the system around a reference point, which is not necessarily an equilibrium point. Two issues related to the implementation of such a control law are analysed: the limitations imposed by the switch’s finite commutation frequency, and the existence and stability of limit cycles that can be obtained. Implementations of this control law on two converter structures are presented, both in simulation and on an experimental setup
Karim, Ouattara. "Etude des stratégies de refroidissement pour convertisseurs électroniques dans des véhicules automobiles hybrides". Grenoble INPG, 2002. http://www.theses.fr/2002INPG0100.
Camara, Mamadou Baïlo. "Supercondensateurs pour échange dynamique d'énergie à bord du véhicule électrique hybride : modélisation, étude des convertisseurs et commande". Besançon, 2007. http://www.theses.fr/2007BESA2060.
This subject is the continuity of the works started at L2ES Laboratory within the framework of ECCE program in collaboration with CREEBEL which ensures the financial support. ECCE test bench is a series electrical hybrid vehicle with 4 independent wheels and a rated power of 120kW. The main energy source consists of two diesel motors and each is coupled to one alternator. The produced energy feeds 4 electric traction motors; the remainder is stored by the batteries. This thesis presents the energy coupling strategies between these batteries and the supercapacitors to ensure dynamics in energy supply and storage for the hybrid vehicle. A bibliographical study has allowed to review technical progress and the available applications of the supercapacitors. A simplified model of supercapacitors which accurately translates the behavior of the cells during the charge and discharge is developed. Several DC/DC converters topologies with original strategies of embarked power management are developed. These topologies are based on the Buck-Boost converters and DC/AC-AC/DC converters with high frequency planar transformer. For cost raisons, the experimental test benches have been designed at a reduced scale (1/10). The experimental results obtained have allowed to compare the topologies performances for two control strategies. The polynomial control strategy (RST) is compared to classical PI correctors. These comparative studies have allowed choosing the best topology intended for the supercapacitors coupling to ECCE DC-bus
Bou, Nader Wissam. "Méthodologie de choix et d'optimisation de convertisseurs d'énergie pour les applications chaînes de traction automobile". Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEM047.
Significant research efforts have been invested in the automotive industry on alternative fuels and new hybrid electric powertrain in attempt to reduce carbon emissions from passenger cars. Fuel consumption of these hybrid powertrains strongly relies on the energy converter performance, the vehicle energetic needs, as well as on the energy management strategy deployed on-board. This thesis investigates the potential of new energy converters as substitute of actual internal combustion engine in automotive powertrain applications. Gas turbine systems is identified as potential energy converter for series hybrid electric vehicle (SHEV), as it offers many automotive intrinsic benefits such as multi-fuel capability, compactness, reduced number of moving parts, reduced noise and vibrations among others. An exergo-technological explicit analysis is conducted to identify the realistic GT-system thermodynamic configurations. A pre-design study have been carried out to identify the power to weight ratios of those systems. A SHEV model is developed and powertrain components are sized considering vehicle performance criteria. Energy consumption simulations are performed on the worldwide-harmonized light vehicles test cycle (WLTC), which account for the vehicle electric and thermal energy needs in addition to mechanical energy needs, using an innovative bi-level optimization method as energy management strategy. The intercooled regenerative reheat gas turbine (IRReGT) cycle is prioritized, offering higher efficiency and power density as well as reduced fuel consumption compared to the other investigated GT-systems. Also a dynamic model was developed and simulations were performed to account for the over fuel consumption during start-up transitory phases. Tests were also performed on some subsystems of the identified IRReGT-system. Results show improved fuel consumption with the IRReGT as auxiliary power unit (APU) compared to ICE. Consequently, the selected IRReGT-system presents a potential for implementation on futur SHEVs
Wu, Zhenwei. "Conception optimale d'un entraînement électrique pour la chaîne de traction d'un véhicule hybride électrique : Co-conception des machines électriques, des convertisseurs de puissance et du réducteur planétaire". Phd thesis, Université de Franche-Comté, 2012. http://tel.archives-ouvertes.fr/tel-00838732.