Dissertations / Theses on the topic 'Fours électriques – Conception et construction'
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Tehar, Sabar. "Optimisation géométrique d'un four à arc électrique pour une productivité et une durée de vie maximales." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23668/23668.pdf.
Full textBenqassmi, Hassan. "Conception de convertisseurs alternatif-continu mono-étage à absorption sinusoïdale." Grenoble INPG, 1998. http://www.theses.fr/1998INPG0058.
Full textRecently, power factor correction has been introduced into power converters to replace the passive filters at the front-end of converters and to respect new standards corne into opération. Single-stage power factor correction has been succeeded to the classicaJ two-stage power factor correction which présents a high volume and cost. This thesis essentially consists of two types of applications. Low power isolated single-stage AC/DC conversion from 230 V rms. AC voltage to 54 V DC. The power is fixed at 300 W. Due to their cost and volume, asymmetrical structures Flyback and Sepic are more adapted. From this study, it émerges also that series-resonant converter operating in discontinuous conduction mode could be respond to desired spécifications if components stresses are acceptable. The second part deals with the isolated single-stage AC/DC conversion for médium power (3 kW) applications with 150 V as output voltage. For this kind of applications, only current-driven and voltage-driven résonant converters are susceptible to respond to the spécifications. An approach to design current-driven résonant converter is presented. Also, several résonant circuits are examined to discuss power factor correction capabilities of voltage-driven résonant converters. By evaluating advantages and disadvantages of thèse converters, two of them are chosen, and realised prototypes présent a high power factor and respect the European standards EN 61000-3-2
Darnault, Régis. "Système expert d'aide à la conception : application au positionnement d'appareils électriques." Grenoble INPG, 1995. http://www.theses.fr/1995INPG0069.
Full textTeulings, Wim. "Prise en compte du cablage dans la conception et la simulation des convertisseurs de puissance : performances CEM." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0053.
Full textOne of today's challenges in power electronics is the need to comply with the electromagnetic compatibility (EMC) standards. Due to the ever increasing switching speed, interconnect modeling becomes of major importance. This work shows that it is possible to perform accurate simulations of power converters by inclusion of a Partial Element Equivalent Circuit (PEEC) model of the converter's interconnects. In this way, the conducted EMI noise level can be predicted with satisfying precision from circuit simulation. However, this kind of simulations tends to be very time-consuming, and can merely be used for the validation of a technological implementation of the converter design. The simulation results have therefore been interpreted, and the complexity of the overall-model has been reduced. Thus, a frequency-domain method for EMI noise prediction has been developed. This method enables the user to rapidly obtain the total noise level, the Common Mode (CM) noise level and Differential Mode (DM) noise level. The method can be used for converter design purposes. Both methods have been applied to a chopper implemented in Printed Circuit Board (PCB) and in Insulated Metal Substrate (IMST) technology. In both cases, the influence of a SMD decoupling capacitor on the conducted noise levels has also been examined
Rios, José. "Etude et conception de dispositifs MOS-Thyristor autoamorçables et à blocage commandé." Toulouse 3, 1996. http://www.theses.fr/1996TOU30014.
Full textRoy, Simon, and Simon Roy. "Conception optimale d'une chaîne de traction électrique pour une voiture de type Formule SAE." Master's thesis, Université Laval, 2016. http://hdl.handle.net/20.500.11794/27117.
Full textTableau d'honneur de la FÉSP
La Formule SAE (Society of Automotive Engineers) est une compétition étudiante consistant en la conception et la fabrication d'une voiture de course monoplace. De nombreux événements sont organisés à chaque année au cours desquels plusieurs universités rivalisent entre elles lors d'épreuves dynamiques et statiques. Celles-ci comprennent l'évaluation de la conception, l'évaluation des coûts de fabrication, l'accélération de la voiture, etc. Avec plus de 500 universités participantes et des événements annuels sur tous les continents, il s'agit de la plus importante compétition d'ingénierie étudiante au monde. L'équipe ULaval Racing a participé pendant plus de 20 ans aux compétitions annuelles réservées aux voitures à combustion. Afin de s'adapter à l'électrification des transports et aux nouvelles compétitions destinées aux voitures électriques, l'équipe a conçu et fabriqué une chaîne de traction électrique haute performance destinée à leur voiture 2015. L'approche traditionnelle employée pour concevoir une motorisation électrique consiste à imposer les performances désirées. Ces critères comprennent l'inclinaison maximale que la voiture doit pouvoir gravir, l'autonomie désirée ainsi qu'un profil de vitesse en fonction du temps, ou tout simplement un cycle routier. Cette approche n'est malheureusement pas appropriée pour la conception d'une traction électrique pour une voiture de type Formule SAE. Ce véhicule n'étant pas destiné à la conduite urbaine ou à la conduite sur autoroute, les cycles routiers existants ne sont pas représentatifs des conditions d'opération du bolide à concevoir. Ainsi, la réalisation de ce projet a nécessité l'identification du cycle d'opération routier sur lequel le véhicule doit opérer. Il sert de point de départ à la conception de la chaîne de traction composée des moteurs, de la batterie ainsi que des onduleurs de tension. L'utilisation d'une méthode de dimensionnement du système basée sur un algorithme d'optimisation génétique, suivie d'une optimisation locale couplée à une analyse par éléments-finis a permis l'obtention d'une solution optimale pour les circuits de type Formule SAE. La chaîne de traction conçue a été fabriquée et intégrée dans un prototype de voiture de l'équipe ULaval Racing lors de la saison 2015 afin de participer à diverses compétitions de voitures électriques.
La Formule SAE (Society of Automotive Engineers) est une compétition étudiante consistant en la conception et la fabrication d'une voiture de course monoplace. De nombreux événements sont organisés à chaque année au cours desquels plusieurs universités rivalisent entre elles lors d'épreuves dynamiques et statiques. Celles-ci comprennent l'évaluation de la conception, l'évaluation des coûts de fabrication, l'accélération de la voiture, etc. Avec plus de 500 universités participantes et des événements annuels sur tous les continents, il s'agit de la plus importante compétition d'ingénierie étudiante au monde. L'équipe ULaval Racing a participé pendant plus de 20 ans aux compétitions annuelles réservées aux voitures à combustion. Afin de s'adapter à l'électrification des transports et aux nouvelles compétitions destinées aux voitures électriques, l'équipe a conçu et fabriqué une chaîne de traction électrique haute performance destinée à leur voiture 2015. L'approche traditionnelle employée pour concevoir une motorisation électrique consiste à imposer les performances désirées. Ces critères comprennent l'inclinaison maximale que la voiture doit pouvoir gravir, l'autonomie désirée ainsi qu'un profil de vitesse en fonction du temps, ou tout simplement un cycle routier. Cette approche n'est malheureusement pas appropriée pour la conception d'une traction électrique pour une voiture de type Formule SAE. Ce véhicule n'étant pas destiné à la conduite urbaine ou à la conduite sur autoroute, les cycles routiers existants ne sont pas représentatifs des conditions d'opération du bolide à concevoir. Ainsi, la réalisation de ce projet a nécessité l'identification du cycle d'opération routier sur lequel le véhicule doit opérer. Il sert de point de départ à la conception de la chaîne de traction composée des moteurs, de la batterie ainsi que des onduleurs de tension. L'utilisation d'une méthode de dimensionnement du système basée sur un algorithme d'optimisation génétique, suivie d'une optimisation locale couplée à une analyse par éléments-finis a permis l'obtention d'une solution optimale pour les circuits de type Formule SAE. La chaîne de traction conçue a été fabriquée et intégrée dans un prototype de voiture de l'équipe ULaval Racing lors de la saison 2015 afin de participer à diverses compétitions de voitures électriques.
The Formula SAE (Society of Automotive Engineers) is a student engineering competition for which students design, build and race a single-seater racing car. Multiple events are organized every year during which the teams can compete against other universities. With more than 500 teams participating worldwide, it is the biggest student engineering competition in the world. The tests include the evaluation of the design, production costs, acceleration of the car, etc. The ULaval Racing team participated during more than 20 years at the annual Michigan competition reserved for internal combustion racecars. In order to adapt to the electrification of transportation and to the new competitions reserved for electric cars, the team designed and manufactured a high performance electric powertrain for their 2015 car. The traditional approach used to design an electric powertrain is to set the desired performances of the vehicle. These criteria include the maximum incline that the car must be able to climb, the desired range and a speed profile over time, also known as road cycle. Unfortunately, this approach is not suitable for the design of an electric powertrain for use in a Formula SAE racecar. Since this type of vehicle is not intended for city driving nor highway driving, the existing road cycles are not representative of the expected operating conditions. The realization of this project required the identification of the road cycle on which the vehicle will operate. It is used as a starting point for the design of the powertrain, which includes the electric motors, the battery pack and the power inverters. The use of a genetic optimization algorithm, followed by a local optimization coupled to a finite element analysis tool yielded an optimal solution suitable for the Formula SAE type race tracks. The drivetrain was designed, manufactured and integrated into the 2015 ULaval Racing vehicle. The car participated in various competitions intended for electric racecars and received multiple awards for its inovative design and its performance.
The Formula SAE (Society of Automotive Engineers) is a student engineering competition for which students design, build and race a single-seater racing car. Multiple events are organized every year during which the teams can compete against other universities. With more than 500 teams participating worldwide, it is the biggest student engineering competition in the world. The tests include the evaluation of the design, production costs, acceleration of the car, etc. The ULaval Racing team participated during more than 20 years at the annual Michigan competition reserved for internal combustion racecars. In order to adapt to the electrification of transportation and to the new competitions reserved for electric cars, the team designed and manufactured a high performance electric powertrain for their 2015 car. The traditional approach used to design an electric powertrain is to set the desired performances of the vehicle. These criteria include the maximum incline that the car must be able to climb, the desired range and a speed profile over time, also known as road cycle. Unfortunately, this approach is not suitable for the design of an electric powertrain for use in a Formula SAE racecar. Since this type of vehicle is not intended for city driving nor highway driving, the existing road cycles are not representative of the expected operating conditions. The realization of this project required the identification of the road cycle on which the vehicle will operate. It is used as a starting point for the design of the powertrain, which includes the electric motors, the battery pack and the power inverters. The use of a genetic optimization algorithm, followed by a local optimization coupled to a finite element analysis tool yielded an optimal solution suitable for the Formula SAE type race tracks. The drivetrain was designed, manufactured and integrated into the 2015 ULaval Racing vehicle. The car participated in various competitions intended for electric racecars and received multiple awards for its inovative design and its performance.
Charpentier, Jean-Frédéric. "Modélisation des ensembles convertisseurs statiques-machines électriques par couplage des équations du champ électromagnétique et du circuit électrique." Toulouse, INPT, 1996. http://www.theses.fr/1996INPT065H.
Full textChakir, Mohamed. "Conception et optimisation de la performance d'une génératrice à réluctance variable." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27417/27417.pdf.
Full textDe, Lara Jayme Salvador Carlos. "Identification des paramètres des machines électriques à courant alternatif." Toulouse, INPT, 1995. http://www.theses.fr/1995INPT009H.
Full textCembrzynski, Thierry. "Conception et réalisation d'outils statistiques et d'intelligence artificielle pour l'aide à la planification du réseau de transport d'Electricité de France." Paris 9, 1988. https://bu.dauphine.psl.eu/fileviewer/index.php?doc=1988PA090015.
Full textAguglia, Davide. "Conception globale des générateurs asynchrones à double alimentation pour les éoliennes." Doctoral thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/22322.
Full textBen, Nachouane Ayoub. "Modélisation numérique des phénomènes aérothermiques dans les machines électriques en vue d’optimisation de leur conception : application aux machines électriques des véhicules hybrides et électriques." Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2348/document.
Full textThe integration of an electrical machine into modern hybrid vehicles is associated with new technical constraints such as the integrability into small volume without losing certainly in performance. Therefore, the development of compacter electrical machines is a well-founded argument for car manufacturers as well as electrical machine designers. On the other hand, this finding assumes that the thermal aspects are undertaken not only during the operation of the electrical machine, but also during the design process. The internal heat generated in different areas impacts strongly the power density and the magnet health which deeply reduce the electrical machine reliability. Heat transfer modeling inside electrical machines is a tricky task because of the strong coupling between the different physics governing their operations. Indeed, the generated losses spread inside the electrical machine through three heat transfer modes which are: conduction (heat diffusion), convection(heat transport) and radiation (heat scattering). In terms of geometry, if a first approach can be carried out by considering only radial heat fluxes, the axially-transferred heat must be undertaken when it is also necessary to consider end caps effects, and particularly the heat released by the bearings. In order to carry out relevantly the thermal analysis of a permanent magnets synchronous machine, CFD based methods are used to characterize the convective heat transfer inside this machine over a large operating range. Both natural and forced convection are analyzed and the corresponding heat transfer coefficients are numerically-estimated. Empirical equations are proposed in order to take into account the coupling between thermal and fluid dynamics inside the cavities of the studied totally-enclosed machine. These correlations are integrated then into a detailed and reduced thermal network. Experimental tests are carried out using a test bench in order to measure temperature distribution in different areas of the electrical machine. Afterward, a comparison between estimated and measured temperatures shows that the results of the numerically-enhanced thermal network are in a good agreement with measurements. Thus, the proposed recommendations based on CFD modeling allow the convective heat transfer to be characterize quickly and precisely. These correlations are useful for upcoming studies dealing with convection inside automotive electrical machines as well as high speed electrical machines
Duong, Quynh Huong. "Conception, caractérisation et modélisation : contribution à la fiabilité de micro-commutateurs RF MEMS." Lille 1, 2007. http://www.theses.fr/2007LIL10166.
Full textLiu, Xiaofeng. "Développement d'un outil logiciel d'étude d'architectures de chaînes de traction pour véhicules électriques ou hybrides." Paris 11, 2009. http://www.theses.fr/2009PA112048.
Full textElectrics vehicles, Hybrid Electric and Fuel Cell Electric Vehicles are considered the most promising solutions to the problems of land transportation. Many automobile manufacturers are engaged in the development of these new “clean” cars, but they meet two major problems in the prototype development : desing and analysis. Due to this raison, a software tool, which can help the designer facilitate the vehicle powertrain design and analysis process, is interesting in terms of development cost and time reductions. The word presented in this memory represents a contribution in the development of a software tool to assist the analysis and design of electric vehicles, hybrid electric vehicle and fuel cell electric vehicle powertrains. The tool is based on the Matlab Simulink® platform. Different component libraries have been developed as well as a design procedure to facilitate the constructions of the powertrain from the normalized cycles. In order to exploit the various energy sources for each vehicle architecture, a control strategy in designed. A fuzzy logic method has been evaluated for a parallel hybrid vehicle. The performance of the control strategy depends on the sizing of the energy sources and storage devices. Therefore, the criterious are pointed out for the design of HEV powertain, procedure by optimization has been developed. A FCEV with batteries as storage device is used as a benchmark to evaluate the design procedure
Javadi, Hamid. "Développement d'outils informatiques pour aider à la conception des machines à forte discrétion vibratoire." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT113H.
Full textWurtz, Frédéric. "Une nouvelle approche pour la conception sous contraintes de machines électriques." Grenoble INPG, 1996. https://tel.archives-ouvertes.fr/tel-00729068.
Full textThe aim of this work is to define and to present a new approach to the design with constraints of electrical devices. It gives to electrical engineers and searchers the opportunity to use computers not only as analysis tools but also as tools that have real capabilities to make automatic designs. This approach offers great advantages like the ability: -to take into account constraints on the specifications of the device, -to take into account the interdependence of all the physical phenomenon that occur, - to find optimal solutions. However its main originality is that it automatically generates the design software by using techniques of symbolic calculation and automatic programming. For this an analytical model of the device is used as basic knowledge. For the design process, constrained optimisation algorithms are used. In this work, the approach is particularly used for the design of induction machines
Dufour, Amélie. "Multivariate statistical modeling of an anode backing furnace : Modélisation statistique multivariée du four à cuisson des anodes utilisées dans la fabrication d'aluminium primaire." Master's thesis, Université Laval, 2016. http://hdl.handle.net/20.500.11794/26844.
Full textThe aluminum manufacturing process is highly influenced by the anode quality. Several factors affect the anode quality and the actual quality control strategy is inadequate to detect faulty anodes before setting them in the electrolytic cells. A soft-sensor model developed from historical carbon plant data and multivariate statistical methods was proposed in past work to obtain quick predictions of individual anode properties right after baking for quality control purposes. It could only be used for anodes baked at the coldest and hottest positions within the furnace due to the core sampling strategy used at the partner’s plant. To complement the soft-sensor, this work proposes a method for taking into account the thermal history of anodes baked at eventually any position and to allowing for the prediction of properties for all anodes. It is shown that combining categorical variables for pit and baking positions and routinely available firing equipment data is sufficient for predicting the temperature profiles of anodes baked in different positions (measured during pit surveys) and account for its impact on anode properties. Prediction results were validated using core sampling and good performance was obtained for LC, apparent and real density, compressive strength and air reactivity.
Zhu, Ye. "Modélisation simplifiée et méthodologie d'intégration des faisceaux électriques dans les simulations numériques pour des applications de pré-dimensionnement CEM en avance de phase." Clermont-Ferrand 2, 2007. http://www.theses.fr/2007CLF21789.
Full textIosif, Vadim. "Conception et mise au point des bobines inorganiques pour des actionneurs électriques capables de travailler aux températures extrêmes." Thesis, Artois, 2016. http://www.theses.fr/2016ARTO0205/document.
Full textThe weak point of electrical machines is the Electrical Insulation System (EIS) of their windings. The best current solutions are based on polymers, they provide lifetimes over 20000h when the temperature at the hottest point of the windings does not exceed 240° C. Consequently, the organic nature of the electric machines EIS represents a technological lock for operating at higher temperatures that have many applications in aeronautics, for designing larger electric generators located near the propulsion turbines of airplanes for instance. The main goal of the research works presented consist in studying the possibility of building the windings of high-temperature electrical machines (HT°) with inorganic EIS which make it possible to work durably at 500°C. The consequences of this technological leap towards high temperatures are analyzed in detail. A large part is devoted to magnetic aspects caused by the presence of a diffusion barrier made of nickel added to the copper wire to avoid oxidation at high temperatures.The first part of the thesis is devoted to the development of a fully inorganic electrical isolation system, which allows to overcome the technological lock due to the presence of polymers in conventional solutions. The second part is devoted to the study of the voltage distribution between the turns of the HT° coil when the machine is powered by a modern electronic converter od aeronautics that imposes very steep voltage fronts
Longchamps, Jean. "Pré-dimensionnement du dispositif de stockage énergétique d'un autobus de transport urbain." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/27831/27831.pdf.
Full textUrban transit buses have furrowed our roads for a long time now. Both reliable and economical, these vehicles have become one of the most popular mean of transportation to commute passengers throughout entire cities. Unfortunately, the ever-increasing emissions of pollutants caused by the burning of gasoline of these buses, have urged the government authorities to take due reforms in the transport sector so that more and more alternatives are proposed. In this context, the electric buses have recently been identified as viable and promising alternative for reducing emissions of pollutants in cities. Since the technology behind the electrification of urban buses is still young, there is a growing interest on how we should scale its main components such as its engine and its power source. The work presented in this paper contributes in the development of a tool that allows a user to have an idea on the size of the energy source and the electric motor of the bus. The tool allows among others to determine the dimensional parameters of the bus that reflect the choice of vehicle dynamic performance. In deriving the mathematical equations that govern the behavior of the bus, one can develop simulation tool software. By configuring the tool according to the needs of a dimensional study, we come to offer bus designs that meet different situations of use. After analyzing the results from more than 150 simulations, we can show that the size of the energy source depends essentially on the choice of battery type, autonomy target and driving cycle used by the bus. Other results show that the use of the source to meet the energy needs of the heating system of the bus in winter is not advisable. Indeed, in almost all cases, the amount of energy used from heating corresponds approximately to half the available energy source. Finally, we can show that the combined use of supercapacitors and batteries, for low autonomy targets, further reduces the dimensions of the source needed to meet performance criteria.
Muller, Philippe. "Conception, fabrication et caractérisation d'un microcommutateur radio fréquences pour des applications de puissance." Lille 1, 2005. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/2005/50376-2005-Muller.pdf.
Full textDiouf, Fatou. "Characterization of DC motors impedances for EMI prediction purposes." Rouen, 2014. http://www.theses.fr/2014ROUES037.
Full textThe prediction of conducted emissions is essential in determining the electromagnetic compatibility (EMC) of a device. DC motors are usually modeled as a source and its series impedance for electromagnetic interference (EMI) prediction purposes. In previous research only the impedance of the armature was included, while the effect of the rotating motor was neglected. In the presented work, the behavior of the low voltage DC motors impedance is studied over a large frequency range [0Hz-200MHz] as well as the impact of the dynamic mode on its behavior. The impedance measurements are performed using a small signal method based on conducted susceptibility measurement setups, the same method used in military standards (MIL-STD). Different test setups are implemented in accordance with the European standards (CISPR25). The measurements are performed on the motor’s armature, the DC motor under static mode, and on the DC motor under operating mode. These measurements provide satisfying results for the wideband impedance of the rotating DC motor and highlight the impact of the stator and suppression filters in the low frequency range. The results also highlight the role of the parasitic inductances and capacitances in the high frequency range. The results were compared with those found via other measurement techniques to prove their accuracy. Finally, the resulting impedances are modeled as a passive impedance network
Bouatia, Eloumami Souhail. "Développement de matériaux électriquement conducteurs pour les plaques bipolaires de piles à combustibles à membrane échangeuse de protons, PEMFC." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25545/25545.pdf.
Full textFlasquelle, Aurélie. "Contribution à la modélisation multi-physique : électro-vibro-acoustique et aérothermique de machines de traction." Ecole Centrale de Lille, 2007. http://tel.archives-ouvertes.fr/docs/00/19/65/74/PDF/These-A_FASQUELLE.pdf.
Full textTransports have been developed for past few years. This major development has been followed by growing concern for the environment respect. Although railway transports present high energy efficiency, they also present environmental nuisances. It is then necessary to include the sustainable development from the moment of conception. It results in the consideration of numerous physical phenomena. Consequently, this PhD Thesis aims to emphasize a conception methodology in respect to the current will of economic and ecological optimisation. Then, a multi-physical model has been developed in order to represent electromagnetic, acoustic and thermal-flow phenomena in an enclosed induction motor of railway traction. In fact, this model is divided into several analytical interacting models. Each model represents a specific physical phenomenon. This work focuses on the thermal-flow model and the losses model, and in particular on the modelling of the iron losses. Although these models are analytical models, they both rely on numerical studies. The multi-physical model has shown to be efficient and to respect the main evolution trends thanks to comparison with experimental results and analysis of the uncertainties influence
Tan, Wenhua. "Modélisation et Conception des Composants Passifs Planar pour Filtres CEM." Phd thesis, Ecole Centrale de Lille, 2012. http://tel.archives-ouvertes.fr/tel-00776515.
Full textSence, Johann. "Contribution au co-design et à la co-intégration de réseaux d’antennes actives multi-bandes pour systèmes de radionavigation par satellite." Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0087.
Full textThis work takesplace in the context of developingelectronic systems for communications equipment, localization or monitoringequipment with a high integration density. The deployment of these systems must also meet a growing demand for flexibility in terms of frequencies, power or coverage. The frequency flexibility can be simultaneous with multiband devices or selective by reconfiguring the frequency band. The power flexibility enables to minimize consumption of the system and the coverage flexibility to direct the beam to the target to optimize the budget link or otherwise protect a source of noise. The increase in efficiency and compactness passes through the combination of elementary functions (LNA / filter / antenna) that reduces interconnect floors and considering the interactions between the different elements. The primary objective of this project is to develop a co-design methodology of the antenna with the associated circuits (filters and LNA) to achieve optimal performances (radiation,efficiency, ...) with an integrated and compact device
Mihaila, Vasile. "Nouvelle conception des bobinages statoriques des machines à courant alternatif pour réduire les effets négatifs des dV/dt." Thesis, Artois, 2011. http://www.theses.fr/2011ARTO0212/document.
Full textThe emergence of the concept of a more electric aircraft requires a major overhaul of onboard grid. The main developed axis is based on an increase in the grid voltage and a switch to DC bus. In this context, the onboard electric actuators are supplied through power electronic converters that will impose very fast voltage fronts and particular constraints in the windings of the machines. The transient over-voltages that follow the steep-fronted pulses are the source of intense electric fields which may exceed the partial discharge inception voltage (PDIV) and cause a rapid deterioration of polymer based insulators. This thesis focuses on the study of a new design method of the windings in order to reduce problems of partial discharges. An experimental device developed in this framework reproduces the constraints of modern converters and allows measuring the turn-to-turn voltages of a coil. The experimental study shows the phenomena to be considered with this type of power supply and gives an idea of possible areas for optimization. A predictive model able to give the distribution of turn-to-turn voltages, in response to a steep-fronted voltage, helps to identify critical points. The constitutive parameters of this model were determined using analytical, experimental and numerical methods. Given the complexity of the model, an automated numerical tool has been developed in order to simulate the model of studied coils. Several types of coil have been analyzed and optimized successfully. This optimization consists in reducing the turn-to-turn voltages by acting on the arrangement of the wires in the slots. The use of optimized coils with this method allows envisaging a significantimprovement in the reliability of electrical machines
Rossi, Mathieu. "Conception optimale et multi-physique de composants passifs de puissance exploités dans le domaine ferroviaire." Phd thesis, Ecole Centrale de Lille, 2012. http://tel.archives-ouvertes.fr/tel-00917884.
Full textAissi, Mohammed. "Conception de circuits WLAN 5 GHZ à résonateurs BAW-FBAR intégrés : oscillateurs et amplificateurs filtrants." Phd thesis, Université Paul Sabatier - Toulouse III, 2006. http://tel.archives-ouvertes.fr/tel-00127363.
Full textBuzila, Petronela-Valeria. "Gestion énergétique optimale des installations fixes de traction électrique ferroviaire hybrides." Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10084/document.
Full textIn railway traffic increasing and electricity market liberalization context, railway actors are determined to consider innovative solutions to handle the increasing energy demand for electrical traction. One of the solution concerns the integration of decentralized production and energy storage systems in the railway power substations (RPS). The present research work aims to contribute to the design of a sizing and intelligent energy management tool for the hybrid RPS (HRPS). In the first part of the dissertation, a methodology for the techno-economical design of the HRPS is described. From a HRPS generic architecture, an optimization approach is proposed by considering cycles of dimensional and system control variables. Furthermore, an energy flow model permits to apply the optimization methodology on a study case and to compare different optimization scenarios in order to analyze the sizing and optimal planning of electrical sources and loads for a typical day. After sizing the HRPS, an energy management methodology is developed in order to achieve energy, economic and environmental objectives at different time levels of HRPS supervision. Several energy management scenarios are evaluated in simulation through adapted system gain indicators. An optimization study of the supervision parameters provides additional answers concerning the influence of the system design on its management strategy. Eventually, the HRPS energy management robustness is analyzed during an experimental setup phase at laboratory power scale
Kreuawan, Sangkla. "Modelling and optimal design in railway applications." Ecole Centrale de Lille, 2008. http://tel.archives-ouvertes.fr/docs/00/38/48/43/PDF/Thesis_SKreuawan_v16052009.pdf.
Full textThe design of traction system is a complex task, which needs experts from various fields. Train manufacturers can manage this complexity and produce high performance rolling stock materials. However, any improvement in design methodology can lead to competitive advantage in a global market. This thesis focuses on the optimal design methodology of complex system such as a railway traction system. The design process and tools are demonstrated via two applications: the design of a traction motor and the concurrent design of several key components. The load cycle and transient thermal behaviour are essential in the design of traction motor. The adaptation of motor to its load cycle allows light-weight motor. The multidisciplinary design optimization approach is used to manage interactions between various discipline's models in the optimization process. The optimization time can be decreased through a task distribution and a parallel computing. The multiobjective design optimizations are also applied. Pareto fronts are obtained despite the difficulty in using the high fidelity but expensive in computation time such as Finite Element Analysis model. The hierarchical decomposition approach: Target Cascading method is applied to the traction system design problem. The system and components are designed simultaneously. This method is suitable for implementing the complex system optimal design process while respecting company’s product development structure
Werner, Quentin. "Model-based optimization of electrical system in the early development stage of hybrid drivetrains." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0109.
Full textThis work analyses the challenges faced by the electric components for traction purpose in hybrid drivetrains. It investigates the components and their interactions as an independent entity in order to refine the scope of investigation and to find the best combinations of components instead of the best components combinations. Hybrid vehicle is currently a topic of high interest because it stands for a suitable short-term solution towards zero emission vehicle. Despite its advantages, it is a challenging topic because the components need to be integrated in a conventional drivetrain architecture. Therefore, the focus of this work is set on the determination of the right methods to investigate only the electric components for traction purpose. The aim and the contributions of this work lies thereby in the resolution of the following statement: Determine the sufficient level of details in modeling electric components at the system level and develop models and tools to perform dynamic simulations of these components and their interactions in a global system analysis to identify ideal designs of various drivetrain electric components during the design process. To address these challenges, this work is divided in four main parts within six chapters. First the current status of the hybrid vehicle, the electric components and the associated optimization methods and simulation are presented (first chapter). Then for each component, the right modeling approach is defined in order to investigate the electrical, mechanical and thermal behavior of the components as well as methods to evaluate their integration in the drivetrain (second to fourth chapter). After this, a suitable method is defined to evaluate the global system and to investigate the interactions between the components based on the review of relevant previous works (chapter five). Finally, the last chapter presents the optimization approach considered in this work and the results by analyzing different system and cases (chapter six). Thanks to the analysis of the current status, previous works and the development of the simulations tools, this work investigates the relationships between the voltage, the current and the power in different cases. The results enable, under the considered assumptions of the work, to determine the influence of these parameters on the components and of the industrial environment on the optimization results. Considering the current legislative frame, all the results converge toward the same observation referred to the reference systems: a reduction of the voltage and an increase of the current leads to an improvement of the integration and the performance of the system. These observations are linked with the considered architecture, driving cycle and development environment but the developed methods and approaches have set the basis to extend the knowledge for the optimization of the electric system for traction purpose. Beside the main optimization, special cases are investigated to show the influence of additional parameters (increase of the power, 48V-system, machine technology, boost-converter…) In order to conclude, this work have set the basis for further investigations about the electric components for traction purpose in more electrified vehicle. Due to the constantly changing environment, the new technologies and the various legislative frame, this topic remains of high interest and the following challenges still need to be deeper investigated: * Application of the methods for other drivetrain architecture (series hybrid, power-split hybrid, fuel-cell vehicle, full electric vehicle), * Investigation of new technologies such as silicon-carbide for the power electronics, lithium–sulfur battery or switch reluctance machine, * Investigation of other driving cycle, legislative frame, * Integration of additional power electronics structure, * Further validation of the modeling approaches with additional components
Galaï, Dol Lilia. "Alimentation et commande de drivers à très forte isolation galvanique pour des convertisseurs multi-niveaux dédiés à la traction ferroviaire." Thesis, Cachan, Ecole normale supérieure, 2014. http://www.theses.fr/2014DENS0002/document.
Full textThis project is the result of collaboration between the EPI team of the SATIE laboratory at ENS Cachan, the LAPLACE laboratory and ALSTOM Transport in the ANR "CONCIGI HT" project. Research in the railway traction area aims to reduce the increasing size and weight of the power train. Today, the desire to reduce travel time is complemented by the desire to reduce power consumption- it is an important information for the design of traction chains. The objective of this project is to replace parts of the locomotive power supply systems to reduce their size by 30%, thus to reduce the power consumption and increase by 8.5% the number of passengers. The work presented in this thesis focuses on the design and study of the drivers power supply for HV SiC semiconductor (up to a 10 kV transient voltage). The peculiarity of these semiconductors is their application: they are placed in multi-level converters in order to replace the 25 kV / 3 kV, 50 Hz transformers currently used for rail traction. The main constraint is the dielectric strength that reaches a maximum of 60 kV due to transient present on the catenary. So, the Double Galvanic Insulation Transformer (DGIT) has been developed to adapt to the need of holding dual dielectric (10 kV and 60 kV). In a first step, a structure for the dual galvanic insulation has been developed with the objective to minimize its size and weight. Its spatial and geometrical arrangements were also taken into account (as well as many parameters both relevant and contradictory), in order to obtain the optimal system and common and differential mode distributed capacities observing the high dielectric strength. In a second step a study of the DGIT adapted power supply has been completed and tested. The combination of DGIT inductive behavior, the driver low power and the multi-level aspect, involves an atypical work of this power supply converter. For each of these parts, a structural, frequencial and electrical study was performed in order to achieve the maximum optimal device in terms of volume, weight and loss, with respect to the main constraint of VHV (Very High Voltage). Finally, in a third step we studied the possibility of subtituing the optical fibers currently used for the control of lighters with a system based on radio-frequency transmission
Fedida, Vincent. "Etude des défauts des machines électriques tournantes par analyse du champ magnétique de fuite : Application au diagnostic de machines de faibles puissances dans un contexte de production en grande série." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAT023.
Full textDiagnostic and identification of defaults providing in electrical machines (mainly single phased asynchrone motors) by stray flux measurement
Zeaiter, Amal. "Thermal Modeling and Cooling of Electric Motors : Application to the Propulsion of Hybrid Aircraft Thermal Sensitivity Analysis of a High Power Density Electric Motor for Aeronautical Application Numerical Approach to Determining Windings’ Thermal Conductivity Electro-thermal Models and Design Approach for High Specific Power Electric Motor for Hybrid Aircraft Determination of electric motor losses and critical temperatures through an inverse approach." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2020. http://www.theses.fr/2020ESMA0015.
Full textThe concern of this thesis is the thermal modeling of high-specific power electric motors. The aim is to allow finding the efficient and adequate cooling solutions of the motors designed for hybrid aircraft propulsion application. Two specific power values, 5 kW/kg for the short-term (year 2025) and 10 kW/kg for the long-term (year 2035), are targeted, each with specific requirements. The investigated type of electric motors is the synchronous machine with surface-mounted permanent magnets. This motor type is constrained by relatively low values of maximum allowed temperatures in windings and magnets. Once reached, these temperature values lead to a failure in motor operation or at least to shortening its lifetime. Moreover, with a closed motor design and high heat fluxes generated, the optimization of the cooling is essential.To become acquainted with the issue, a detailed state of the art on electric machine cooling is elaborated. Then, the commonly used techniques and the recent technological advancements are analyzed with respect to our case study. Afterward, in order to predict motor thermal behavior and ensure the monitoring of critical temperatures (windings and magnets), a nodal transient model is implemented and solved on Matlab software. This latter is built for the whole system of the motor and cooling circuit. Specific conditions of the flight are taken into account, particularly the outside air temperature variation in terms of altitude and the flight mission profile. Actually, the motor losses, generating the heat in the machine, vary depending on the motor power during the mission. For the identification of crucial parameters, a Finite-Element study was conducted and corresponding correlations were elaborated to estimate the windings thermal conductivity through polynomial interpolation.Several studies were carried out involving the influence of the thermo-physical properties, the outside temperature, the coolant nature, its flow rate as well as the exchanger surface, on the temperature response of the model. This model has allowed studying several motor designs and proposing adequate cooling solutions. For each target, a final optimal configuration of the motor with its cooling system was adopted.Besides, since the electromagnetic and mechanical losses are hardly estimated in this machine type, a chapter was dedicated to identifying them through an inverse approach. A sequential technique, that uses Beck’s function specification for regularization, was developed. Three cases of unknown losses, with increasing complexity, were studied, proving the method's reliability. Finally, using the same developed low-order model, the real-time procedure also allows monitoring low-accessibility motor temperatures (specifically hot spots)
Camperi-Ginestet, Christophe. "Optimisation de l'intégration des composants optoélectroniques en films minces séparés du substrat de croissance par la technique du lift-off." Toulouse, INSA, 1993. http://www.theses.fr/1993ISAT0036.
Full textCollin, Philippe. "Design, taking into account the partial discharges phenomena, of the electrical insulation system (EIS) of high power electrical motors for hybrid electric propulsion of future regional aircrafts." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30116.
Full textReducing CO2 emissions is a major challenge for Europe in the years to come. Nowadays, transport is the source of 24% of global CO2 emissions. Aviation accounts for only 2% of global CO2 emissions. However, air traffic is booming and concerns are emerging. For instance, CO2 emissions from air traffic have increased by 61% in Sweden since the 1990s. This explains the emergence of the "Flygskam" movement which is spreading in more and more European countries. It is in this context that the European Union launched in September 2016 the project Hybrid Aircraft Academic research on Thermal and Electrical Components and Systems (HASTECS). The consortium brings together different laboratories and Airbus. This project is part of the program "Clean Sky 2" which aims to develop a greener aviation. The ambitious goal is to reduce CO2 emissions and the noise produced by aircraft by 20% by 2025. To do that, the consortium is studying a serial hybrid architecture. Propulsion is provided by electric motors. Two targets are defined. In 2025, the engines must reach a power density of 5kW/kg, including the cooling system. In 2035, the power density of the engines will be doubled to reach 10kW/kg. To reach these targets, the voltage level will be considerably increased, beyond one kilovolt. The risk of electric discharges in the stators of electric motors is considerably increased. The objective of this thesis is to develop a tool to assist in the design of the primary Electrical Insulation System (EIS) of the stator of an electric motor controlled by a converter. It is organized in 5 parts. The first part begins by clarifying the issues and challenges of a greener aviation. The electric motor stator EIS is developed. Finally, the constraints that apply to the EIS in the aeronautical environment are identified. The second part presents the different types of electric discharges that can be found. The main risk comes from Partial Discharges (PD) which gradually deteriorate the EIS. The main mechanism for explaining the appearance of PD is the electronic avalanche. The Paschen criterion makes it possible to evaluate the Partial Discharge Inception Voltage (PDIV). Different techniques are used to detect and measure the activity of PD. Numerical models are used to evaluate the PDIV. The third part presents an original method for determining the electric field lines in an electrostatic problem. It only uses a scalar potential formulation. The fourth part presents an experimental study to establish a correction of the Paschen criterion. An electric motor winding is very far from the hypotheses in which this criterion was originally defined. Finally, the fifth part is devoted to the development of the SIE design aid tool. Graphs are generated to provide recommendations on the sizing of the various insulators in a stator slot. A reduction in the PDIV due to a combined variation in temperature and pressure is taken into account
Assaad, Bassel. "Contribution à la prise en compte des aspects thermiques des machines électriques dans un environnement mécatronique." Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2251/document.
Full textElectric machines play an important role in power conversion in several applications and fields. With the increasing demand for designing lighter and more efficient machines and optimizing the existing structures, thermal analysis becomes a necessary; in fact, the performance of electric machines islimited by the allowable temperatures in many critical components like windings, permanent magnetsand bearings. Two main approaches can be employed in order to study the machine thermal behavior : the lumped parameter thermal network (LPTN) or numerical models. Considering low-computationtime-consuming and the possibility to be integrated in a mechatronics system design, the LPTN method is considered in our study. The latter is mainly applied on electric machine integrated in a complex mechatronics environment. The thermal network is presented along with the definition of the principal elements constituting this network. In fact, an accurate and reliable network strongly depends on many critical parameters like heat transfer coefficients, interface gaps, impregnation goodness, among others. For this reason, different sensitivity analysis techniques are carried out in order to, first, identify the significance of uncertainties in the evaluation of these parameters on machine temperatures and second, to reduce the thermal network. Next, we propose two optimization algorithm-based identification methodologies in order to calibrate results of the thermal network with measured temperatures obtained from a test-bench of a permanent magnet based integrated starter-generator machine. The calibrated model is then integrated in a mechatronics system consisting of an electric model of the electric machine, along with its control strategy and the power converter. This final study allows us to evaluate the impact of the machine temperature rise on the mechatronic system
Aviles, Thomas. "Etude du dépôt par pulvérisation cathodique des matériaux pour la réalisation de cellules photovoltaïques couche mince à base de CIGS ou CZTS." Thesis, Lille 1, 2012. http://www.theses.fr/2012LIL10126.
Full textThin film photovoltaic cells based on CIGS and CZTS materials has been initiated in this work. Environmental and economic issues have been taken into account to define an original strategy. We aim to substitute all the toxic and rare materials by abundant and non-toxic materials. In order to simplify the fabrication process, we also decide to deposit all layers using sputtering technique. The molybdenum back contact has been developed on a soda lime glass (SLG) substrate, with adequate electrical properties and good adhesion to the substrate even after thermal treatments similar to those used during the absorber formation. We have verified the required sodium migration from the SLG substrate to the molybdenum surface. A bibliographic study has been done to evaluate a single-target sputtering method to form CIGS and CZTS films. CZTS thin film deposition from a single target has been studied, with unsatisfactory results. We finally suggest an original multi-target method. Then, a bibliographic study has been done to evaluate the relevance of a sputtered Zn(S,O) buffer layer to replace the CBD-CdS conventional buffer layer. A study of RF-sputtered AZO films has been carried out, but we didn’t obtain the required electrical conductivity. We finally study RF-sputtering of ITO films. We developed amorphous ITO thin films with excellent electrical and optical properties. We suggest using this material as the window layer of solar cells
Moussouni, Fouzia. "Méthodologie et algorithmes adaptés à l’optimisation multi-niveaux et multi-objectif de systèmes complexes." Thesis, Ecole centrale de Lille, 2009. http://www.theses.fr/2009ECLI0016/document.
Full textThe design of an electrical system is a very complex task which needs experts from various fields of competence. In a competitive environment, where technological advance is a key factor, industry seeks to reduce study time and to make solutions reliable by way of a rigorous methodology providing a systemic solution.Then, it is necessary to build models and to develop optimization methods which are suitable with these concerns. Indeed, the optimization of sub-systems without taking into account the interaction does not allow to achieve an optimal system. More complex the system is more the work is difficult and the development time is important because it is difficult for the designer to understand and deal with the system in its complexity. Therefore, it is necessary to integrate the design components in a systemic and holistic approach to take into account, in the same time, the characteristics of a component and its relationship with the system it belongs to.Analytical Target Cascading is a multi-level optimization method for handling complex systems. This hierarchical approach consists on the breaking-down of a complex system into sub-systems, and component where their optimal design is ensured by way of classical optimization algorithms. The optimal solution of the system must be composed of the component's solutions. Then a coordination strategy is needed to ensure consistency of all sub-systems. First, the studied and proposed optimization algorithms are tested and compared on the optimization of electrical components. The second part focuses on the multi-level optimization of complex systems. The optimization of railway traction system is taken as a test case
Dell'Isola, Davide. "Optimization of DC/DC converters for embedded systems including dynamic constraints." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0124.
Full textTo keep up with the new emission standards and improve efficiency and autonomy, the transportation sector has moved towards more electric solutions. Then, compactness, weight and efficiency are primary requirements in modern aircrafts or Electric/Hybrid vehicles. The power electronics units in the on-board electrical networks have to be designed accordingly, as it is essential to achieve very compact designs and energy conversion efficiencies very close to the unity. The wide bandgap semiconductor materials are considered as the future technology in the realization of high efficiency switched-mode power supplies. Such materials are featured by fast switching behaviour and low power losses, which allows reducing the size of the passive elements and the cooling unit of the power converter. Considering these criteria, the objective of this study concerns the development of a procedure for the optimal design of a DC/DC boost converter 350V/3kW. The converter has been designed specifically for a powertrain application. In order to ensure the proper interaction with the load (DC/AC inverter and motor) and the micro-grid on-board, the design must take into account the stability and dynamic behaviour of the converter during a possible variation of the operating point, then its control strategy. To deal with the manifold technical solutions and in order to reach the best trade-off, a Pareto front genetic approach is proposed. The developed routine consent to obtain the most convenient design solutions in terms of efficiency and compactness, which ensure the stability and the compliance with the design specification on both steady state and transients modes
Basma, Hussein. "Energy management strategies for battery electric bus fleet." Thesis, Université Paris sciences et lettres, 2020. http://thesesprivees.mines-paristech.fr/2020/2020UPSLM036_archivage.pdf.
Full textInitiatives to decrease emissions from the transport sector are increasing worldwide by seeking alternative technologies to replace oil-based mobility. Battery Electric Buses (BEB) present a promising solution thanks to their high energy efficiency, low greenhouse gas emissions and the absence of local pollutant emissions. However, this technology still faces many challenges, especially its high total cost of ownership (TCO) and other operational factors such as the limited bus driving range, the high energy refueling time, and the required charging technologies and strategies. In this context, this thesis presents a systematic methodology that aims at developing solutions to help overcoming these challenges by providing optimal battery sizing and charging strategy for BEB. First, a comprehensive multi-physical bus energy model is developed to evaluate its energy needs considering all the energy systems encountered within. The energy consumption of the bus is then evaluated at a variety of operating conditions. Then, a techno-economic model of an entire bus line is developed in order to assess the impact of different battery sizing and charging strategies on the costs and operation of BEB. A TCO model is introduced considering the BEB unit costs, battery purchase and replacement costs, energy and power costs, infrastructure, and maintenance costs. A case study in Paris city is presented and the analysis reveals the resulting tradeoff between the TCO and BEB schedule disruptions and delays as function of different battery sizes and charging strategies. A methodology to minimize the TCO of BEB deployment is presented providing the optimal battery sizing and charging strategy for BEB, while respecting the BEB operation constraints. The methodology is a 2-step optimization algorithm that utilizes both Dynamic programming and Genetic Algorithm optimization routines. The results show that the proposed methodology could reduce the BEB TCO between 15-25% compared to the currently adopted approaches to deploy BEB
Zhang, Shuangfeng. "Wide Bandgap Semiconductor Components Integration in a PCB Substrate for the Development of a High Density Power Electronics Converter." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS398/document.
Full textThe emerging wide bandgap (WBG) semiconductor devices have been developed for power conversion applications instead of silicon devices due to higher switching frequencies (from few 100 kHz to several MHz) and lower on-state losses resulting in a better efficiency. In order to take full advantage of the WBG components, PCB technology is attractive for high power density integration thanks to its flexibility and low cost. However, due to poor thermal conductivity of the commonly used material Flame Retardant-4 (FR4), efficient thermal solutions are becoming a challenging issue in integrated power boards based on PCB substrates. So it is of the first importance to seek technological means in order to improve the thermal performances. In this thesis, three main thermal management solutions for PCB structures have been investigated including thermal vias, thick copper thickness on the PCB substrate as well as thermoelectric cooling (TEC) devices. Our studies are based on the electro-thermal modeling and 3D finite element (FE) methods. Firstly, optimization of the thermal via parameters (via diameter, via plating thickness, via-cluster surface, via pattern, pitch distance between vias etc.) has been realized to improve their cooing performances. We presented and evaluated thermal performances of the PCB structures by analyzing the thermal resistance of the PCB substrate with different thermal vias. Secondly, it is found that thermal performances of the PCB structures can be enhanced by using thick copper thickness on top of the PCB substrate, which increases the lateral heat flux along the copper layer. Influences of the copper thickness (35 µm to 500 µm) has been discussed. This solution is easy to realize and can be combined with other cooling solutions. Thirdly, thermoelectric cooler like Peltier device is a solid-state cooling technology that can meet the local cooling requirements. Influences of Peltier parameters (Thermoelectric material properties, number of Peltier elements, distance between the heating source and the Peltier devices etc.) have been identified. All these analyses demonstrate the potential application of Peltier devices placed beside the heating source for PCB structures, which is a benefit for developing the embedding technology in such structures
Ridremont, Thomas. "Design of robust networks : application to the design of wind farm cabling networks." Thesis, Paris, CNAM, 2019. http://www.theses.fr/2019CNAM1228/document.
Full textNowadays, the design of networks has become a decisive problematic which appears in many fields such as transport or energy. In particular, it has become necessary and important to optimize the way in which networks used to produce, collect or transport energy are designed. We focus in this thesis on electricity produced through wind farms. The production of energy by wind turbines appears more than ever like a good alternative to the electrical production of thermal or nuclear power plants.We focus in this thesis on the design of the cabling network which allows to collect and route the energy from the wind turbines to a sub-station, linking the wind farm to the electrical network. In this problem, we know the location of each wind turbine of the farm and the one of the sub-station. We also know the location of possible inter-connection nodes which allow to connect different cables between them. Each wind turbine produces a known quantity of energy and with each cable are associated a cost and a capacity (the maximum amount of energy that can be routed through this cable). The optimizationproblem that we consider is to select a set of cables of minimum cost such that the energy produced from the wind turbines can be routed to the sub-station in the network induced by this set of cables, without exceeding the capacity of each cable. We focus on cabling networks resilient to breakdowns
Bracikowski, Nicolas. "Modélisation multi-physique par modèles à constantes localisées ; application à une machine synchrone à aimants permanents en vue de son dimensionnement." Phd thesis, Ecole Centrale de Lille, 2012. http://tel.archives-ouvertes.fr/tel-00905641.
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