Open Access
Modèles analytiques simplifiés des composants de puissance passifs et actifs pour la conception optimale de convertisseurs
Julien Brunello,Jeremy Bourdon,Francois Forest,Thierry Meynard,Eric Laboure,Jean-Jacques Huselstein +5 more
TLDR
In this paper, a philosophie mixant analyses physiques, formulations empiriques issues de bases de donnees and caracterisations experimentales is proposed to constrain les modeles des principaux acteurs des etages de puissance that sont les composants actifs and passifs, associes selon les cas a des vecteurs de refroidissements.Abstract:
Le choix d'une architecture de convertisseur puis la conception d'un prototype demonstrateur, pour repondre a une specification donnee, reste un exercice difficile dans une jungle topologique et technologique. Le developpement d'outils d'aide a la conception est donc un passage oblige pour faciliter la tâche des concepteurs mais aussi pour optimiser veritablement les solutions. La puissance sans cesse croissante des plates-formes logicielles et des ordinateurs personnels offre un potentiel largement suffisant pour atteindre des objectifs ambitieux dans cette assistance a la conception. Cela dit, de nombreux problemes restent a resoudre et parmi eux, la synthese de modeles realistes et utilisables dans l'optimisation d'un systeme complet n'est pas le moindre. Cette contribution propose une philosophie mixant analyses physiques, formulations empiriques issues de bases de donnees et caracterisations experimentales pour construire les modeles des principaux acteurs des etages de puissance que sont les composants actifs et passifs, associes selon les cas a des vecteurs de refroidissements.read more
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Dissertation
Conception et réalisation d'un convertisseur multicellulaire DC/DC isolé pour application aéronautique
TL;DR: In this paper, the authors present a model of an HVDC/DC system for a multicellulaire DC/DC, isolee pour l’application proposee.
Proceedings ArticleDOI
Optimization of parallelized power inverters using a direct modelling approach for More Electrical Aircraft
TL;DR: In this article, a new approach to design parallelized power inverters used in more electrical aircraft equipment is presented, which help choosing, among various solutions, which is the optimal (minimizing the global mass) parallelization strategy.
Dissertation
Modélisation de composants d'extraction de la chaleur : application à l'optimisation de système d'électronique de puissance
TL;DR: In this paper, the authors present a set of modeles analytiques for refroidissement of an avion plus electrique, i.e., dissipateurs a ailettes droites en convection forcee, ainsi que les dissipateurs associant dissipateurs and caloducs.
Multi-objective Optimization dedicated to the design of MEA Equipment
TL;DR: A new methodology of constrained optimization answering to the challenges of the new electrical networks powering the future aircrafts is introduced respecting the thermal and EMC issues, while reducing the volume, weight and cost objectives.
References
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Improved analytical modeling of conductive losses in magnetic components
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Journal ArticleDOI
Accurate prediction of high-frequency power-transformer losses and temperature rise
Mika Sippola,Raimo Sepponen +1 more
TL;DR: In this paper, the high-frequency power-transformer design equations for winding and core losses and temperature rise were reviewed from literature and formulated for spreadsheet calculations using material (Steinmetz loss coefficients, ferrite resistivity, copper resistivity), geometry (core area, core length, winding area, winding length), winding (number of primary turns, copper fill factor, primary to secondary area ratio) and excitation (input voltage, switching frequency, duty cycle, current harmonic components) parameters.
Proceedings ArticleDOI
Thermal modeling of aluminum electrolytic capacitors
TL;DR: In this paper, a comprehensive thermal model for screw-terminal aluminum electrolytic capacitors is developed, and the test methodology and data upon which the model is based are discussed.