NDLI: High-Frequency Multi-Winding Magnetic Components: From Numerical Simulation to Equivalent Circuits With Frequency-Independent RL Parameters

Content Provider	IEEE Xplore Digital Library
Author	De Greve, Z. Deblecker, O. Lobry, J. Keradec, J.-P.
Copyright Year	1965
Abstract	In this paper, mathematically rigorous RL circuits of high-frequency multi-winding transformers are identified using an original three-step numerical procedure. They are composed of frequency-independent coefficients and can therefore be introduced in classical circuit simulators. First, the finite-element method in 3-D magnetodynamics, together with homogenization techniques which reduce the overall computational burden, are employed to extract frequency-dependent impedances and voltage gains. Then, the identified equivalent circuit is modified by removing the static resistances from the impedances, so as to obtain frequency-independent voltage gains, or coupling coefficients. An algorithm which is valid for any number of windings is proposed to that end. Finally, the frequency-dependent impedances are identified to Foster networks with constant elements using an optimization algorithm. An experimental validation with an impedance analyzer is proposed.
Sponsorship	IEEE Magnetics Society
Starting Page	141
Ending Page	144
Page Count	4
File Size	631948
File Format	PDF
ISSN	00189464
Volume Number	50
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Numerical models Integrated circuit modeling Magnetic cores Windings Magnetic circuits Computational modeling Couplings transformers DC-DC power converters equivalent circuits finite-element methods (FEMs)
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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