High-frequency power transformer model for circuit simulation

Author

Dallago, Enrico ; Sassone, Gabriele ; Venchi, Giuseppe

Author_Institution

Dept. of Electr. Eng., Pavia Univ., Italy

Volume

12

Issue

4

fYear

1997

fDate

7/1/1997 12:00:00 AM

Firstpage

664

Lastpage

670

Abstract

A model for the circuit simulation of transformers used in high-frequency power processing is proposed. Many important transformer effects are combined in a single formulation. An Atherton-Jiles model with improved minor-loop handling ability is employed to simulate the hysteresis effect in the magnetic core. Eddy currents and skin and proximity effects are simulated by dynamically approximating the field and flux distributions in the entire structure. Leakage fluxes, capacitive couplings and the influence of temperature on electric and magnetic materials are also included. The parameters needed for simulation are magnetic material characteristics, available in data sheets, core geometry and winding geometry. The model was implemented (built) in the source code of SPICE3

Keywords

SPICE; circuit analysis computing; eddy currents; high-frequency transformers; magnetic fields; magnetic flux; power engineering computing; power transformers; skin effect; software packages; transformer cores; Atherton-Jiles model; SPICE3 software; capacitive couplings; circuit simulation; computer simulation; eddy currents; high-frequency power transformer model; hysteresis effect; leakage flux distribution; magnetic core; magnetic field distribution; magnetic flux distribution; magnetic material characteristics; minor-loop handling ability; proximity effect; skin effect; temperature effects; Circuit simulation; Couplings; Eddy currents; Geometry; Magnetic cores; Magnetic hysteresis; Magnetic materials; Power transformers; Proximity effect; Skin;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.602561

Filename

602561