Magnetic field analysis of coupling transformers for electric vehicle using 3-D finite element method

Author

Kawase, Yoshihiro ; Mori, Takuya ; Ota, Tomohiro

Author_Institution

Dept. of Electron. & Comput. Eng., Gifu Univ., Japan

Volume

34

Issue

5

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

3186

Lastpage

3189

Abstract

The 3-D analysis is useful for the optimum design of high frequency coupling transformers which have complex structures. It is difficult to predict the current distributions taking into account eddy currents in sheet coils. In this paper, the current density vector analysis and the magnetic field analysis taking into account eddy currents in the spiral sheet coils are coupled. The exciting current characteristics and copper loss are calculated by our method. It is shown that the load characteristics can be accurately calculated by comparison with measurements. The copper loss distributions taking into account eddy currents in the coils are also shown quantitatively

Keywords

current distribution; eddy currents; electric vehicles; finite element analysis; losses; magnetic fields; transformers; 3-D finite element method; copper loss; coupling transformers; current density vector analysis; current distributions prediction; eddy currents; electric vehicle; exciting current characteristics; high frequency coupling transformers; magnetic field analysis; optimum design; sheet coils; Coils; Copper; Couplings; Current distribution; Eddy currents; Frequency; Magnetic analysis; Magnetic field measurement; Magnetic fields; Transformers;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.717747

Filename

717747