Title :
New modeling strategy for the fringing energy in magnetic components with air gap
Author :
Escribano, L.M. ; Prieto, R. ; Oliver, J.A. ; Cobos, J.A. ; Uceda, J.
Author_Institution :
Div. de Ingenieria Electronica, Univ. Politecnica de Madrid, Spain
Abstract :
This work presents a new modeling strategy to account for the energy stored in the volume around the air gap in gapped magnetic components. The approach is based on the Schwarz-Christoffel transformation, which has been extended to axisymmetrical magnetic components. The results have been validated by means of comparisons with analytical expressions (no fringing flux consideration), 2D FEA based models and actual measurements. It is shown that the accuracy of the proposed method is very high when the assumptions of the model are fulfilled
Keywords :
air gaps; energy storage; finite element analysis; inductance; magnetic devices; 2D FEA based models; Schwarz-Christoffel transformation; air gap; fringing energy; gapped magnetic components; inductance calculation; magnetic components; modeling strategy; Air gaps; Equations; Inductance; Inductors; Leg; Magnetic analysis; Magnetic cores; Magnetic flux; Permeability; Shape;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-7404-5
DOI :
10.1109/APEC.2002.989240
