Improvements of the T-Ω method for 3-D eddy current analysis

Author

Nakata, T. ; Takahashi, N. ; Fujiwara, K. ; Okada, Y.

Author_Institution

Dept. of Electr. Eng., Okayama Univ., Japan

Volume

24

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

94

Lastpage

97

Abstract

An improved T-Ω method that can analyze magnetic fields produced not only by eddy currents but also by magnetizing currents is proposed. The method is applied to the analysis of 3-D eddy-current models with holes. The usefulness of the method is investigated by comparing calculated results with measured results and with results obtained by the A-Φ method. The T-Ω method has the advantage that the CPU time can be considerably reduced when most of the analyzed region is current-free and the eddy current flows two-dimensionally. The method is especially effective when the shape of the winding is simple and the distribution of magnetizing current is known beforehand. It is not effective when most of the analyzed region is current-carrying

Keywords

eddy currents; eddy current analysis; holes; magnetic field analysis; Conductivity; Conductors; Current density; Eddy currents; Equations; Magnetic analysis; Magnetic confinement; Magnetic fields; Magnetic flux; Permeability; Roentgenium; Tellurium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.43864

Filename

43864