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Добірка наукової літератури з теми "Électronique de puissance – Fiabilité – Conception assistée par ordinateur"
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Дисертації з теми "Électronique de puissance – Fiabilité – Conception assistée par ordinateur"
Bendali, Mahraz. "Conception multi-niveau multi-physique de systèmes mécatroniques automobiles : prise en compte de la contrainte de fiabilité de convertisseurs de puissance embarqués dans un véhicule hybride/électrique." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112345/document.
Повний текст джерелаThis PhD thesis work is in the context of electric/hybrid vehicle embedded subsystems electrification. In mechatronic design field, the permanent objectives are costs and delays reducing. To achieve this, there is need of design methodologies and appropriate tools to perform a reliable design approach and leave maximum of risks before making the first prototypes. Embedded mechatronic systems mobilize technological brick keys which include the power electronic converter. Their performances are based on the capacity of the design methodologies to consider the environment multi-disciplinary constraints, the adequacy of the technologies, topologies and control laws. This thesis work shows how we can meet these requirements and needs through the development of multi-physics and multi-level design methodology for multi-level converters (interleaved) predisposed to an easy reconfiguration. This methodology, based on optimization under multi-physics constraints allows systematic choice of optimal architecture and component technologies from manufacturer database. It integrates the reliability aspect in the design since the pre-sizing process in the same level as the other constraints (electric, efficiency, thermal, volume, electromagnetic compatibility). In order take advantages of such interleaved converters, the integration of reliability in the design "reliability by design" is completed by the development of fault tolerant control architecture "reliability by control" which increase the availability by reconfiguring hardware or software (control law) of the designed converter
Grandpierron, François. "Design, fabrication and simulation of next generation robust GaN HEMTs for millimeter wave applications." Electronic Thesis or Diss., Université de Lille (2022-....), 2024. http://www.theses.fr/2024ULILN045.
Повний текст джерелаIn recent years, significant progress has been achieved with GaN high electron mobility transistors (HEMTs) in advancing the next generation of 5G networks, radar systems, and satellite communications. However, to further enhance power amplification and high-frequency operation (>30 GHz), innovative architectures have been developed. These designs feature reengineered structures, including sub-150 nm gate lengths, thinner barrier layers, or optimized epitaxial layers. Several research groups have demonstrated impressive results, achieving high power-added efficiency (PAE > 50%) with substantial high output power (POUT > 3 W/mm), across frequency ranges from the Ka-band (30 GHz) to the W-band (94 GHz). Despite these advancements, the reliability of short devices remains a significant challenge due to high electric field, self-heating, and electron trapping effects. This research integrates device fabrication, structural and electrical characterizations, and TCAD simulations to provide cutting-edge insights in this field. One of the most promising technologies, the graded AlGaN channel HEMT has been explored through advanced simulations to better understand its unique properties. Furthermore, an optimized buffer architecture using an AlGaN back barrier and an ultra-thin AlN barrier has enabled state-of-the-art power performance at 40 GHz in fabricated devices. Finally, a novel buffer-free architecture featuring an ultra-thin AlGaN barrier has also been investigated, showing promising results that may rival existing technologies. Short-term reliability tests have been conducted to identify key shortcomings and guide future development
Kuo-Peng, Patrick. "Conception assistée par ordinateur des convertisseurs à résonance série non réversibles." Toulouse, INPT, 1993. http://www.theses.fr/1993INPT086H.
Повний текст джерелаDellier, Stéphane. "Contributions à la conception des circuits micro-ondes : Outil informatique d'assistance à la conception et méthodologie de conception de drivers pour la génération d'impulsions optiques." Limoges, 2005. http://aurore.unilim.fr/theses/nxfile/default/c32d017d-3934-4e7f-9055-802ab9eb7a0e/blobholder:0/2005LIMO0046.pdf.
Повний текст джерелаThis thesis deals with the various aspects of the microwave circuit design, and especially how to implement efficient EDA tools for microwave circuit design without fixing knowledge through monolithic, so as to be able to innovate unceasingly. The two parts of this manuscript concern : - the realization of a MMIC driver in pHEMT GaAs technology at 40 GHz of an electroabsorption modulator on InP for optical pulses generation. A design methodology of the EAM driver was developed, allowing to directly take into account in the phase of ultra high frequency CAD, the optical component and its characteristics. This methodology was applied within the framework of a collaboration with Alcatel-Opto+ to the realization of a MMIC driver at 40 GHZ, in 0. 15 μm GaAs pHEMT technology of OMMIC. This realization made it possible to validate the relevance of methodology used, and made it possible to show the interest of the driver + MEA on InP function for the generation of very short optical pulses with a strong extinction ratio at 40 GHz. - the development of a design assistance tool for microwave circuits. Within the framework of a research programme in collaboration with the French Space Agency, a design assistant of microwave non-linear circuits was developed. The objective is propose to designers, a capable data-processing tool to effectively guide them during each design step and to facilitate them the implementation of suited methods in order to enable them to spend more time on the design problems and the development of innovating solutions
Benchaib, Khadidja. "Modèle facile d'emploi de transistor bipolaire pour la CAO en électronique de puissance." Toulouse, INPT, 1991. http://www.theses.fr/1991INPT007H.
Повний текст джерелаFezzani, Djamel. "Système expert pour la conception en électronique de puissance." Toulouse, INPT, 1996. http://www.theses.fr/1996INPT008H.
Повний текст джерелаGuena, Arnaud. "Association de méthodes pour la modélisation des conducteurs imprimés multicouches en électronique de puissance." Cachan, Ecole normale supérieure, 2001. http://www.theses.fr/2001DENS0040.
Повний текст джерелаReynouard, Norbert. "Construction d'un outil d'aide à la conception destiné à l'optimisation des chaînes d’émission de sonar actif." Lyon, INSA, 1993. http://www.theses.fr/1993ISAL0070.
Повний текст джерелаIn order to face the new exigences of active SONAR transmission systems and particularly the decrease of the working frequency added to the array size conservation, a C. A. D. Tool has been built. The objectives were to give the designer the tool to study and to optimize every element of the chain (power supply, power generator, transformer, matching units, cable, electroacoustic array) while considering this last as a whole and integrating the array acoustic interaction effects. In that way, SPICE compatible models have been developped, both at the element leve! and at the component level, with the associated methods for the parameter extraction. The models have been validated by experimentation
Delaforge, Timothé. "Dimensionnement optimal des composants passifs en électronique de puissance, utilisation de méthodes discrètes." Electronic Thesis or Diss., Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAT008.
Повний текст джерелаInnovation in its whole definition is a way for industrial groups to preserve and create value over competitors on the market. Mainly technologic, innovation is also of use, a new way of using a product or service to answer market or user requirements. This work is an innovation for component design in power electronic systems, both in tools and user customs.Power electronic is subject to same research goals as any modern system, i.e. cost and time to market reduction, efficiency increase in the global energy save world concern and modularity of solution to answer maximum customer needs. Among the multitude of proposed solutions during the last decade, multi-legs and multi-levels converters, new SiC and GaN semiconductors or new control strategies, the choice is cornelian for the designer. The need of tool to help designers in their choices is clearly identified in industry. To answer this problem, this work proposes the implementation of passive component sizing using discrete optimization methods. The choice of accuracy and industrial constraints is done to get already purchasable solution from optimization results to suppliers.In the first part of the PhD dissertation the main optimization algorithms are introduced with the optimization strategies. G2Elab experience and Schneider electric one lead to privileged discrete optimization using stochastic algorithms and libraries of components and materials. In the second part the models for passive components are developed to match stochastic algorithms requirements. Focus is done on magnetics because their sizing is dominant compare to capacitor. The effort is done on losses computation and magnetic behavior of powder alloy and amorphous materials widely used in Schneider Electric applications. With these low loss density materials, the gain on efficiency is achieved on conductors. Thus a new semi-analytic model is developed to overcome standard models issues and to compete with integral or finite element method in terms of accuracy and overcoming them in terms of calculation speed.In the third part, filter modeling approach is introduced for AC/DC, DC/AC and DC/DC converters. This modeling takes into account all working cases of UPS impacting passive components design. Interleaved and coupled solutions are investigated.Finally some examples of developed applications for Schneider Electric are presented. The sizing of passive component using discrete optimization methods are implemented with success. Measures are achieved on prototypes to validate our approach
Gillet, Pierre. "Modèle "distribué" de transistor bipolaire pour la C. A. O. Des circuits en électronique de puissance." Toulouse, INPT, 1995. http://www.theses.fr/1995INPT003H.
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