<\/p>\n
Conception optimale d\u2019inductances planar bas\u00e9es sur des technologies PCB (Printed-Circuit Board) et des mat\u00e9riaux magn\u00e9tiques h\u00e9t\u00e9rog\u00e8nes<\/span><\/strong><\/p>\n Mercredi 08 juillet 2026 \u00e0 10h30 Mots-cl\u00e9s<\/span><\/strong> Composants magn\u00e9tiques, Pertes Cuivre HF, Enroulements PCB, Conception optimale, Electronique de Puissance<\/p>\n R\u00e9sum\u00e9<\/span><\/strong><\/p>\n Les composants magn\u00e9tiques haute fr\u00e9quence (HF), tels que les inductances, sont essentiels au bon fonctionnement des convertisseurs statiques. Avec l\u2019\u00e9mergence des composants semi-conducteur \u00e0 grand-gap, notamment le SiC et le GaN, les composants magn\u00e9tiques apparaissent d\u00e9sormais comme un verrou technologique \u00e0 lever pour am\u00e9liorer les performances de ces convertisseurs, en particulier en termes de densit\u00e9 de puissance et de rendement. Cette th\u00e8se porte sur la conception d\u2019inductances planar optimis\u00e9es pour des applications DC\/DC HF \u00e0 fort courant, potentiellement soumises \u00e0 une ondulation importante. Deux solutions technologiques sont \u00e9tudi\u00e9es afin de r\u00e9duire les pertes cuivre. La premi\u00e8re consiste \u00e0 utiliser des mat\u00e9riaux \u00e0 faible perm\u00e9abilit\u00e9 en remplacement de l\u2019entrefer. La seconde repose sur des enroulements hybrides, permettant de s\u00e9parer les composantes continues et haute fr\u00e9quence du courant afin de limiter les pertes. Par ailleurs, des mod\u00e8les et une m\u00e9thodologie de conception d\u00e9di\u00e9s \u00e0 ces inductances sont d\u00e9velopp\u00e9s. Les mod\u00e8les de pertes cuivre S2DM et M2DM sont d\u2019abord propos\u00e9s, puis am\u00e9lior\u00e9s \u00e0 l\u2019aide d\u2019une approche semi-analytique. Ils sont ensuite int\u00e9gr\u00e9s dans une m\u00e9thode de conception bas\u00e9e sur des contraintes, permettant de r\u00e9duire le nombre de solutions \u00e0 \u00e9valuer. Cette approche s\u2019appuie sur des mod\u00e8les analytiques \u00e9lectromagn\u00e9tiques, de pertes et thermiques. La d\u00e9marche d\u00e9bute par une phase de pr\u00e9dimensionnement, suivie d\u2019une \u00e9tape de s\u00e9lection des solutions potentielles. Cette m\u00e9thodologie permet une exploration efficace de l\u2019espace de conception, r\u00e9duit le temps global de dimensionnement et garantit des inductances compactes, respectant l\u2019ensemble des contraintes tout en minimisant les pertes.<\/p>\n Summary<\/span><\/strong><\/p>\n High-frequency (HF) magnetic components, such as inductors, are essential for the proper functioning of static converters. With the emergence of wide-bandgap semiconductor components, particularly SiC and GaN, magnetic components now appear as a key technology for improving the performance of these converters, especially in terms of power density and efficiency. This thesis focuses on the design of optimized HF planar inductors for high-current in DC\/DC converters with significant current ripple. Two technological solutions are investigated to reduce copper losses. The first involves using low-permeability materials to replace the airgap. The second relies on hybrid windings, allowing the separation of the DC and HF current components to limit copper losses. Furthermore, models and a design methodology dedicated to these inductors are developed. The S2DM and M2DM copper loss models are first proposed and then improved using a semi-analytical approach. These models are then integrated into a constraint-based design method, reducing the number of required solutions. This approach relies on analytical electromagnetic, loss, and thermal models. The process begins with a preliminary sizing phase, followed by a potential solution selection stage. This methodology enables efficient exploration of the design space, reduces overall sizing time and ensures compact inductors that meet all constraints while minimizing losses.<\/p>\n<\/div>\n <\/p>\n","protected":false},"excerpt":{"rendered":" Conception optimale d\u2019inductances planar bas\u00e9es sur des technologies PCB (Printed-Circuit Board) et des mat\u00e9riaux magn\u00e9tiques h\u00e9t\u00e9rog\u00e8nes Mercredi 08 juillet 2026 \u00e0 10h30 B\u00e2timent ESPRIT Cit\u00e9 scientifique 59651 Villeneuve d’Ascq cedex FRANCE, Atrium Mots-cl\u00e9s Composants magn\u00e9tiques, Pertes Cuivre HF, Enroulements PCB, Conception optimale, Electronique de Puissance R\u00e9sum\u00e9 Les composants magn\u00e9tiques haute fr\u00e9quence (HF), tels que […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,34,3],"tags":[],"class_list":["post-9179","post","type-post","status-publish","format-standard","hentry","category-ep","category-omn","category-southese"],"_links":{"self":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/9179","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/comments?post=9179"}],"version-history":[{"count":1,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/9179\/revisions"}],"predecessor-version":[{"id":9180,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/9179\/revisions\/9180"}],"wp:attachment":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/media?parent=9179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/categories?post=9179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/tags?post=9179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nB\u00e2timent ESPRIT Cit\u00e9 scientifique 59651 Villeneuve d’Ascq cedex FRANCE, Atrium<\/p>\n