FEM modeling of skin and proximity effects for coreless transformers

Author

Meyer, P. ; Germano, Paolo ; Perriard, Yves

Author_Institution

Integrated Actuators Lab. - LAI, Ecole Polytech. Fed. de Lausanne - EPFL (Switzerland), Neuchatel, Switzerland

fYear

2012

fDate

21-24 Oct. 2012

Firstpage

1

Lastpage

6

Abstract

This paper addresses the evaluation of the high frequency effects for coreless transformers using PCB coils. Especially it is crucial to calculate accurately the resistances of the coils as they are responsible for the Joule losses and therefore have a great influence on the heat generation and the efficiency. First, a numerical model is implemented with a FEM software. The method used to compute the resistance is presented. Measurements are then realized on PCB coils and the results are compared to those of the model.

Keywords

coils; finite element analysis; printed circuits; skin effect; transformers; FEM modeling; FEM software; Joule losses; PCB coils; coreless transformers; finite element method; high frequency effects; proximity effects; skin effects; Coils; Conductors; Electrical resistance measurement; Frequency measurement; Impedance; Inductance; Resistance; AC resistance; Coreless transformer; contactless energy transfer; proximity effect; skin effect;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2012 15th International Conference on

Conference_Location

Sapporo

Print_ISBN

978-1-4673-2327-7

Type

conf

Filename

6401957