Résumé
This work presents a new design methodology for magnetic core components used in power electronic. This needs several kinds of modelling such as an electromagnetic modelling, a thermal modelling and the AC resistance modelling of the winding. The model includes the behaviour of the ferromagnetic core based on manufacturer datas.The thermal modelling is studied on an analytical point of view but also as an experimental tool for losses measurement. This tool, which is derived from the research in thermomecanic, allows to compute locally the heat sources in materials from temporal temperature acquiring. A first transposition on a simple solenoid coil shows the interest to add to the thermal modelling a stationnary thermal modelling. A second transposition on an inductor with toroidal ferromagnetic core desmonstrates the possibility to perform a separation of the losses contribution from the ferromagnetic core and the winding. Finally, the representative set of equations are collected together around the procedure of design which is supported on mathematics optimization. In this aim a review of optimisation algorithm is led, and original aspects are presented to express the design in terms of optimisation.