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Статті в журналах з теми "Systèmes à multi-sources"
Broschek, Jörg. "Federalism and Political Change: Canada and Germany in Historical-Institutionalist Perspective." Canadian Journal of Political Science 43, no. 1 (March 2010): 1–24. http://dx.doi.org/10.1017/s0008423909990023.
Повний текст джерелаINGRAND, S., and B. DEDIEU. "Numéro spécial : Quelles innovations pour quels systèmes d'élevage ?" INRAE Productions Animales 27, no. 2 (June 1, 2014): 75–76. http://dx.doi.org/10.20870/productions-animales.2014.27.2.3055.
Повний текст джерелаLandais, Paul, Ana Simonet, Didier Guillon, Christian Jacquelinet, Mohamed Ben Saïd, Claude Mugnier, and Michel Simonet. "SIMS@REIN : un système d’information multi-sources pour l’insuffisance rénale terminale." Comptes Rendus Biologies 325, no. 4 (April 2002): 515–28. http://dx.doi.org/10.1016/s1631-0691(02)01456-7.
Повний текст джерелаBen Saïd, M., C. Mugnier, L. Le Mignot, J. B. Richard, J. P. Jais, and P. Landais. "P10-1 Système d’information multi-sources et suivi épidémiologique des maladies chroniques." Revue d'Épidémiologie et de Santé Publique 52 (September 2004): 123. http://dx.doi.org/10.1016/s0398-7620(04)99331-5.
Повний текст джерелаSEDDIKI, Mohamed Akram, Sid Ahmed SOUIAH, Tarik GHODBANI, Abd El Halim GUERROUDJ, Fatiha ZERGUI, and Mohamed MILOUA. "Apport de l'imagerie ALSAT2 pour la maintenance du cadastre steppique en Algérie." Revue Française de Photogrammétrie et de Télédétection 223 (April 19, 2021): 16–37. http://dx.doi.org/10.52638/rfpt.2021.504.
Повний текст джерелаNZEBOP NDENOKA, Gérard, Emmanuel Simeu, and Rshdee Alhakim. "Efficient controller synthesis of multi-energy systems for autonomous domestic water supply." Revue Africaine de la Recherche en Informatique et Mathématiques Appliquées Volume 24 - 2017 - Special... (July 5, 2017). http://dx.doi.org/10.46298/arima.1458.
Повний текст джерелаFlavia Irene, Santamaria,. "“Un estudio multimodal y dinámico de los conocimientos numéricos de estudiantes de primer grado”." RIDAA Tesis Unicen, September 27, 2021. http://dx.doi.org/10.52278/2850.
Повний текст джерелаДисертації з теми "Systèmes à multi-sources"
Doggaz, Narjes. "L'incertitude et l'imprécision dans les systèmes à multi-sources de connaissances : le système Atomic." Nancy 1, 1992. http://www.theses.fr/1992NAN10179.
Повний текст джерелаPayman, 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.
Повний текст джерелаThis 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
Ibrahim, Elkhatib. "Commande intelligente tolérante aux fautes des systèmes multi-sources d'énergie." Thesis, Lille 1, 2013. http://www.theses.fr/2013LIL10086/document.
Повний текст джерелаThis thesis presents stability analysis for a class of uncertain nonlinear systems and a method for designing robust fuzzy controllers to stabilize the multivariable multi-sources of energy systems subject to parameter uncertainties, sensor faults, actuator faults/unknown inputs and wind disturbance. First, the Takagi–Segno (TS) fuzzy model is adopted for fuzzy modeling of the uncertain nonlinear system. Next, we propose a Fuzzy Dedicated Observers (FDOS) method and a Fuzzy Proportional-Integral Estimation Observer (FPIEO) with a Fuzzy Fault Tolerant Control (FFTC) algorithm for TS systems. FDOS provide residuals for detection and isolation of sensor faults which can affect a TS model and FPIEO estimate the actuator faults which fed to the FDOS to reconfigure the controller. The concept of the Parallel Distributed Compensation (PDC) is employed to design FFTC and observers from the TS fuzzy models. Sufficient conditions are derived for robust stabilization, in the sense of Taylor series stability and Lyapunov method, for the TS fuzzy system with parametric uncertainties, sensor faults, actuator faults/unknown inputs and wind disturbance. The sufficient conditions are formulated in the format of Linear Matrix Inequalities (LMIs) and Linear Matrix Equalities (LMEs). Important issues for the stability analysis and design are remarked. The effectiveness of the proposed controller design methodology is finally demonstrated through a Hybrid Wind-Diesel System (HWDS), Wind Energy System (WES) with Doubly Fed Induction Generators (DFIG) and Photovoltaic (PV) generation system to illustrate the effectiveness of the proposed method
Mouhammad, Al Anfaf Mohamed Mladjao. "Contribution à la modélisation et à l’optimisation de systèmes énergétiques multi-sources et multi-charges." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0127/document.
Повний текст джерелаGlobal energy demand continues to rise. The fossil fuel prices are unstable and uncertain. The liberalization of the electricity market and environmental awareness of the global leaders are levers for the development of renewable energy. These are growing at a rapid pace in the world. They reached technical maturity that enables them to become an important segment of the energy industry. Their integration in the energy mix poses new challenges compared to traditional energy sources. With an underexploited potential, photovoltaic and wind energy are advantageous economically and environmentally. However, their intermittent decreases their energy efficiency when operated. The use of hybrid systems (multi-sources) combining these renewable energy sources, the national distribution network (historical grid) and conventional storage systems, is generally regarded by all as a future solution, both efficient and reliable. Thereby, it is necessary to rethink the structure of electrical networks and energy markets, and changes in network management methods. In this context, the foreseen intake with this thesis is to contribute to the modeling and optimization of multi- load multi- source systems to power both remote sites “closeness energy” (campus, village) and large sites such as French regions through their interconnection "pooling ". Different scenarios of management and different configurations of the systems are modeled, tested and compared to analyze the effectiveness and robustness of each case. A complete technical and economic analysis is performed in order to study the feasibility of each system. To demonstrate the validation of these models, studies were performed on a French university campus, a Micro-grid in Mali and three French regions. These latter have been applied to an original interconnection model based on Petri nets for decision support in terms of network configuration and control of energy flows exchanged between interconnected producers/consumers territories without storage
Bargain, Mike. "Développement d'une méthodologie de traitement et de fusion d'informations multi-sources et multi-outils." Université de Marne-la-Vallée, 1997. http://www.theses.fr/1997MARN0015.
Повний текст джерелаCourdouan, Elie. "Développement d'un module BMS multi-sources harvesting." Electronic Thesis or Diss., Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0633.
Повний текст джерелаWith the development of mobile applications, such as telecoms, IoT and home automation, embedded systems have shown an exponential growth over the past years. The main characteristic of these newly build systems is to combine high processing capabilities and extended operational autonomy. Unfortunately, these parameters are fundamentally opposed and hardware designer facing this issue by limiting processing capability to ensure enough autonomy. To solve this autonomy problem, newly architectures choose to implement an energy harvesting stage with one or more sources. As part of this industrial thesis, the study has been carried out on the design of an optimized energy harvesting module using one or more sources. Two directions were found to increase the quantity of harvested energy: - Interfacing multiple harvester from complementary source in an industrialized architecture - Optimization of produced energy from each source by using next-generation algorithms of Maximum Power Point Tracking. These algorithms are optimized thanks to technical advances made in the field of Deep Learning and the availability of more efficient low power microcontroller. The final goal of this study is to deploy a low cost wide area network of sensors with enhanced or infinite autonomy
Mboup, Alioune Badara. "Commande d'un système de production d'énergie électrique multi-sources : application aux sites isolés." Le Havre, 2011. http://www.theses.fr/2011LEHA0022.
Повний текст джерелаThis thesis concerning integration and control of renewable energy sources in systems of power generation and energy storage. The hybrid system studied consists of a wind generator, a diesel generator, photovoltaic panels and lead acid batteries for supplying continuous loads. All these sources are interfaced with the power electronics in aims to maintain the DC bus voltage to a reference value for supplying correctly the load demand. In this study we have done the model of the multisource system by using a hybrid nonlinear state space representation that uses discrete and continuous variables. Discrete variables are the contacts used to connect power converters on the DC bus. Continuous variables represent voltage and current to satisfy the load. We then developed a hierarchical control strategy which is used to regulate the voltage of the DC bus, to adjust the power rate extracted from the sources and to connect or disconnect the converter associated with sources according to criteria of energy availability. The control laws of power converters and the energy transfer management methods are developed from a study of the technological characteristics of different components of the system on one hand and information of the duty cycle value on the other. The duty cycle is a correlation measure between the source and the load. Its variations depend on the power extracted of the source. We showed that it was a priority decision variable in optimization energy of multi-source systems and operations can reduce the necessary instrumentation to control the installation. Following the methodological work, we are realized the power electronic converters and the acquiring system (and measuring). We are also validated our approach with experimental results that show the effectiveness of the strategy proposed for the energy management and the control of power converters
Fauvel, Clément. "Approche modulaire de l'optimisation des flux de puissance multi-sources et multi-clients, à visée temps réel." Thesis, Nantes, Ecole des Mines, 2015. http://www.theses.fr/2015EMNA0181/document.
Повний текст джерелаThe energy systems describe a class of systems whose from structural and functional characteristics raise the problem of the energy distribution to satisfy the services in real time. The solution of this multi-objectives problem, namely energetic, is the energy management strategy, whose design is still an open problem. The solutions studied in this thesis are incorporated in the framework of an industrial partnership and particularly in those systemic design approaches. The first contribution is a methodology of modular and generic design of the energy management strategy, for the multi- clients and multi-sources systems. It defines two types of functional elements: the clients and the sources, interacting through a node, which is the carrier of thestrategy. The second contribution deals with thegeneric formulation of the strategy and itssimplification by means of decomposition in accordance with two problems: the hybridization of sources and the competition of clients, which a real ready known in the literature. The third contribution is partial to the selection of innovative or existing algorithms, which are compatible with a real-time target to execute the strategy. Finally, the energy strategy of a refrigerated truck with a hybrid energy architecture is designed by the proposed modular approach, and the algorithm feasibility is validated by the simulation
Bellache, Kosseila. "Caractérisation Multi-physique des éléments de stockage électrochimique et électrostatique dédiés aux systèmes Multi sources : Approche systémique pour la gestion dynamique d'énergie électrique." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMLH21.
Повний текст джерелаThis thesis work is a continuation of the research activities of the GREAH laboratory on the issues of the management of electrical energy and improving the energy quality of production systems for renewable energy. Indeed, the coupling of several different nature sources entails the problems of dimension, quality of energy and the lifetime of the interconnected elements. The scientific approach is based on the characterization of the evolution of the resistances and capacitances of the batteries/supercapacitors cells according to the electrical and thermal constraints, followed by the modeling of accelerated cells aging. In this thesis, we propose improvements to the dynamic response of an electric propulsion fluvial boat by using the hybrid system of lithium-batteries and supercapacitors. We also propose an electrothermal approach for the multi-physical characterization and modeling of the batteries and supercapacitors aging, using combined constraints of the temperature and frequency of the DC current ripples. The experimental data has been collected to establish models of batteries and supercapacitors dedicated to multi-source systems including renewable energy sources (wind and tidal turbines). The results of the developed models shown high accuracy compared with experimental results. These models illustrated a good description of the aging phenomenon of batteries/ supercapacitors due to charging/discharging operations with a fluctuating continuous current combined with a variable temperature
Sall, Ousmane. "Contribution à la modélisation de données multi-sources de type DATAWEB basé sur XML." Littoral, 2010. http://www.theses.fr/2010DUNK0284.
Повний текст джерелаEnvironmental data in the Senegal River Valley have been collected for many years from the activities of the various experts and organisms involved therein. These spatio-temporal data display certain specific semantic and structural features depending on the owners. Various systems have been used for the collection and storage of the data, thus, conferring them a structural dimension of heterogeneity, to which a semantic dimension related to them description has been attached, with a proper vocabulary controlled within every organism or expert. In this context, we perform an integration in three phases. First, a structural integration phase, based on the use of XML documents warehouses (called dataweb), allows us to create a warehouse for each agency involved in the project. A second step is to make the integration of these XML documents warehouses by associating a knowledge-base to each warehouse thus constituting semantic dataweb. That is done by an automatic building of OWL ontology starting from XML dataweb and by re-use of the Agricultural Ontology Service. A third mediation phase permits to query in a uniform manner the different semantic dataweb via a web application
Книги з теми "Systèmes à multi-sources"
ABDELKAFI, Achraf. Amélioration de la qualité énergétique d'un réseau électrique: Coordination des systèmes multi-sources renouvelables connectés au réseau ou autonomes. Éditions universitaires européennes, 2021.
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