Equivalent Conductor Layer for Fast 3-D Finite Element Simulations of Inductive Power Transfer Coils

In this article, a method to replace conductors, in one or multiple layers, by an equivalent layer with homogeneous current distribution is proposed to allow complex 3-D finite element simulations. This equivalent layer needs a coarser mesh, then the simulations are accelerated. The electromagnetic...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2020-06, Vol.35 (6), p.6221-6230
Main Authors: Delgado, Alberto, Salinas, Guillermo, Oliver, Jesus A., Cobos, Jose A., Rodriguez-Moreno, Jorge
Format: Article
Language:English
Subjects:
Anisotropic model
Coils
Computer simulation
Conductors
Current distribution
Electromagnetic properties
Empirical equations
Equivalence
Finite element analysis
Finite element method
finite element modeling
inductive power transfer
magnetic components
Magnetic resonance imaging
Mathematical analysis
Mathematical model
Power transfer
Simulation
Three-dimensional displays
Windings
wireless power transfer
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Description
Summary:In this article, a method to replace conductors, in one or multiple layers, by an equivalent layer with homogeneous current distribution is proposed to allow complex 3-D finite element simulations. This equivalent layer needs a coarser mesh, then the simulations are accelerated. The electromagnetic properties of this equivalent layer will be defined to match skin and proximity losses of actual round and Litz-wire conductors. Analytical and empirical equations to obtain these parameters will be provided and the method is validated in several inductive power transfer coils with three dimensional geometries.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2019.2949438