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Academic literature on the topic 'Réseaux électriques (Circuits) – Modèles mathématiques'
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Dissertations / Theses on the topic "Réseaux électriques (Circuits) – Modèles mathématiques"
Bergeron, Maxim. "Étude du double pas de calcul pour la simulation numérique des réseaux électriques." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28366/28366.pdf.
Full textEnacheanu, Octavian. "Modélisation fractale des réseaux électriques." Phd thesis, Université Joseph Fourier (Grenoble), 2008. http://tel.archives-ouvertes.fr/tel-00366184.
Full textGagnet, Florian. "Contribution à l'étude d'interconnexions en circuits intégrés : la transition puce retournée et la transition par trou métallisé." Toulouse, INPT, 1998. http://www.theses.fr/1998INPT031H.
Full textNizigiyimana, Richard. "Diagnostic de réseaux électriques et communication par CPL." Thesis, Tours, 2014. http://www.theses.fr/2014TOUR4040/document.
Full textPower line communications (PLC) technologies allow deploying low cost home data network using power cables as transmission lines. They offer nowadays data rate sometimes upper than those of Wifi standard. However, PLC performances strongly depend on the electric and electromagnetic environment of the domestic power grid. The announced data rates are then rarely achieved. The aim of this work is to develop a tool computing the expected PLC performances of a given network. Frequent PLC models are compared and the multipath model has been chosen after than analysis. The developed simulator can compute the transmission parameters (transfer function, channel capacity, coherence bandwidth) between two points of the grid. The influence of the grid topology and the cable type is investigated. When the grid topology is unknown, an algorithm to compute it has been initiated from the pulse propagation times between power outlets
Picot, Fabrice. "Contribution à l'optimisation d'un flot de conception submicronique à base de cellules pré-caractérisées." Montpellier 2, 2002. http://www.theses.fr/2002MON20156.
Full textMahyob, Amin. "Modélisation des machines électriques tournantes défectueuses par la méthode des réseaux de perméances : application à la machine asynchrone." Le Havre, 2009. http://www.theses.fr/2009LEHA0017.
Full textFault diagnosis in electrical machines needs a modelling approach reliable and as close to the reality as possible. It is shown that by proper modelling of the electrical machines it is possible to detect the effect of the different faults on the different machine quantities. This work proposes a robust modular model based on Permeance Network Method (PNM) for the diagnosis of induction machine stator and rotor faults. The proposed model allows taking into account the local magnetic saturation of the magnetic circuit due to heavy fault currents, especially in the case of inter-turn short circuit fault, and remains moderately time consuming. In this model, the magnetic circuit of the machine was represented by a set of permeances (reluctances); their values vary as functions of the magnetic state of the machine. Firstly, the system of algebraic equations describing the developed permeance network is written. Then, this magnetic model is coupled to the electrical and mechanical differential equations describing the induction machine operation in presence of different faults to achieve a final system of algebro-differential equations of first order with variable coefficients whose numerical solution is provided by the iterative Newton-Raphson method. The comparison between the experimental results and simulation results obtained by the proposed model in the presence of inter-turn short circuit fault shows the relevance of the chosen method to identify the signature of this fault in the measurable quantities
Visco, Comandini Filippo. "Some inverse cattering problems on star-shapped graphs : application to fault detection on electrical transmission line networks." Versailles-St Quentin en Yvelines, 2011. http://www.theses.fr/2011VERS0035.
Full textIn this thesis, having in mind applications to the fault-detection/diagnosis of electrical networks, we consider some inverse scattering problems for the Zakharov-Shabat equations and time-independent Schrödinger operators over star-shaped graphs. The first chapter is devoted to describe reflectometry methods applied to electrical networks as an inverse scattering problems on the star-shaped graphs. Modeled by the telegrapher’s equations, reflectometry experiments can be written as inverse scattering problems for Schrödinger operator in the lossless case and for Zakharov-Shabat system for the lossy transmission network. In Chapter 2 we introduce some elements of the inverse scattering theory for 1 d Schrödinger equations and the Zakharov-Shabat system. We recall the basic results for these two systems and we present the state of art of scattering theory on network. The third chapter deals with some inverse scattering for the Schrödinger operators. We prove the identifiability of the geometry of the star-shaped graph: the number of the edges and their length. Next, we study the potential identification problem by inverse scattering. In the last chapter we focus on the inverse scattering problems for lossy transmission star-shaped network. We prove the identifiability of some geometric informations by inverse scattering and we present a result toward the identification of the heterogeneities, showing the identifiability of the loss line factor
Chainon, Sébastien. "Etude et conception d'antennes composées de guides d'ondes en technologie mousse métallisée. Application aux antennes à balayage électronique." Rennes 1, 2002. http://www.theses.fr/2002REN10100.
Full textBlanc, Jean-Yves. "Contribution du parallélisme à la résolution d'un problème de répartition de charge dans les réseaux électriques." Phd thesis, Grenoble INPG, 1991. http://tel.archives-ouvertes.fr/tel-00339495.
Full textFouathia, Ouahab. "Stratégie de maintenance centrée sur la fiabilité dans les réseaux électriques de haute tension." Doctoral thesis, Universite Libre de Bruxelles, 2005. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211003.
Full textCette thèse rentre dans le cadre d’un projet de recherche lancé par ELIA, et dénommé COMPRIMa (Cost-Optimization Models for the Planning of the Renewal, Inspection, and Maintenance of Belgian power system facilities). Ce projet vise à développer une méthodologie qui permet de modéliser une partie du réseau électrique de transport (par les réseaux de Petri stochastiques) et de simuler son comportement dynamique sur un horizon donné (simulation de Monte Carlo). L’évaluation des indices de fiabilité permet de comparer les différents scénarios qui tentent d’améliorer les performances de l’installation. L’approche proposée est basée sur la stratégie RCM (Reliability-Centered Maintenance).
La méthodologie développée dans cette thèse permet une modélisation plus réaliste du réseau qui tient compte, entre autres, des aspects suivants :
- La corrélation quantitative entre le processus de maintenance et le processus de vieillissement des composants (par un modèle d’âge virtuel) ;
- Les dépendances liées à l’aspect multi-composant du système, qui tient compte des modes de défaillance spécifiques des systèmes de protection ;
- L’aspect économique lié à la stratégie de maintenance (inspection, entretien, réparation, remplacement), aux coupures (programmées et forcées) et aux événements à risque (refus disjoncteur, perte d’un client, perte d’un jeu de barres, perte d’une sous-station, etc.).
Doctorat en sciences appliquées
info:eu-repo/semantics/nonPublished
Books on the topic "Réseaux électriques (Circuits) – Modèles mathématiques"
Zhu, Jizhong. Optimization of power system operation. Piscataway, N.J: Wiley-IEEE, 2009.
Find full textJohns, A. T., and S. K. Salman. Digital Protection for Power Systems (Power & Energy Series). Institution of Electrical Engineers, 1997.
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