Title :
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
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;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2012 15th International Conference on
Conference_Location :
Sapporo
Print_ISBN :
978-1-4673-2327-7
