Thermal Resistance Modeling for the Optimal Design of EE and E/PLT Core-Based Planar Magnetics

Reda Bakri, Xavier Margueron (), Philippe Le Moigne and Nadir Idir
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Reda Bakri: Univ. Lille, Arts et Metiers Institute of Technology, Centrale Lille, Junia, HESAM Université, ULR 2697, L2EP, F-59000 Lille, France
Xavier Margueron: Univ. Lille, Arts et Metiers Institute of Technology, Centrale Lille, Junia, ULR 2697-L2EP, F-59000 Lille, France
Philippe Le Moigne: Univ. Lille, Arts et Metiers Institute of Technology, Centrale Lille, Junia, ULR 2697-L2EP, F-59000 Lille, France
Nadir Idir: Univ. Lille, Arts et Metiers Institute of Technology, Centrale Lille, Junia, ULR 2697-L2EP, F-59000 Lille, France

Energies, 2024, vol. 17, issue 11, 1-18

Abstract: With the integration of power electronic converters and components, an accurate thermal design becomes essential. Hence, precise thermal models for components are needed for their optimal design. This paper focuses on the development of an analytical model for the design of thermal resistance of planar magnetic cores (PMC). Based on computational fluid dynamic (CFD) simulations, the PMC design thermal resistance variation is studied, according to ambient temperature and level of losses. Then, a polynomial equation is developed to model those variations, and coefficients are deduced for all the sizes of PMC. This analytical model, useful for designers, is finally validated with thermal measurements on a planar transformer prototype.

Keywords: planar magnetics; thermal resistance; modeling; design (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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