Frequency-Dependent Equivalent Circuit Parameter Calculation of Gapped Multiwinding Inductors
Open access
Date
2022Type
- Conference Paper
ETH Bibliography
yes
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Abstract
Accurate and fast models of the equivalent circuit elements of gapped multiwinding inductors are essential to design galvanically isolated converters such as the Flyback converter and the LLC-converter. This paper derives equivalent circuit parameters of gapped multiwinding inductors from 2D magnetic field models proposed in this paper. It is shown and quantitatively examined that frequency affects resistance and inductance values of magnetically coupled windings by several effects. Especially eddy currents in windings induced by the air gap field play a significant role besides the well known skin- & proximity effect. The proposed model accurately takes into account all these effects in foil- and round wire conductors. The model is verified with FEM simulations and measurements. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000564444Publication status
publishedBook title
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)Pages / Article No.
Publisher
IEEEEvent
Subject
Magnetic components; inductor; transformer; magnetic field; equivalent circuit parameter calculationOrganisational unit
03889 - Biela, Jürgen / Biela, Jürgen
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Is part of: https://doi.org/10.3929/ethz-b-000580484
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