Title :
Skin and proximity effects for coreless transformers
Author :
Meyer, Pascal ; Perriard, Yves
Author_Institution :
Integrated Actuators Lab. - LAI, Ecole Polytech. Fed. de Lausanne - EPFL, Neuchatel, Switzerland
Abstract :
This paper addresses the evaluation of the high frequency effects for coreless transformers using PCB coils. First, analytical equations allow to compute the current density distribution over the cross-section of PCB conductors. The theoretical values of resistance and internal self inductance can then be estimated with energy considerations. Examples of computed results are shown in order to verify the accuracy of the model. Finally, measurements are realized on PCB coils and the results are compared to those of the analytical model.
Keywords :
current density; power transformers; proximity effect (superconductivity); skin effect; PCB coils; coreless transformers; current density distribution; proximity effect; skin effect; Coils; Conductors; Electrical resistance measurement; Inductance; Mathematical model; Resistance; Skin effect; Coreless transformer; contactless; energy transfer; proximity effect; skin effect;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-1044-5
DOI :
10.1109/ICEMS.2011.6073351
