DocumentCode :
1513945
Title :
Improved analytical modeling of conductive losses in gapped high-frequency inductors
Author :
Wallmeier, Peter
Author_Institution :
ASCOM Energy Syst. GmbH, Soest, Germany
Volume :
37
Issue :
4
fYear :
2001
Firstpage :
1045
Lastpage :
1054
Abstract :
An improved method to predict conductive losses in gapped high-frequency inductors is presented and used for parametrization of an equivalent small-signal circuit model. The method is based on the superposition of power losses resulting from the well-known one-dimensional (1-D) field calculation and losses due to eddy currents caused by the fringing field of air gaps determined from novel analytical two-dimensional field calculations. Losses due to reactive currents in the windings caused by self capacitances are also considered. A greatly improved accuracy compared to 1-D analysis is proved by measurements
Keywords :
air gaps; capacitance; eddy current losses; inductors; magnetic fields; air gap; analytical modeling; conductive losses prediction; eddy current losses; equivalent small-signal circuit model; fringing field; gapped high-frequency inductors; magnetic components; one-dimensional field calculation; power losses superposition; reactive current losses; self capacitances; skin effect; two-dimensional field calculations; Air gaps; Analytical models; Capacitance; Conductors; Geometry; Inductors; Industry Applications Society; Magnetic analysis; Magnetic field measurement; Predictive models;
fLanguage :
English
Journal_Title :
Industry Applications, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-9994
Type :
jour
DOI :
10.1109/28.936395
Filename :
936395
Link To Document :
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