3-Dimensional eddy current analysis of a conducting shell of a superconducting generator by using IBIEM

Author

Kim, Woo-Seok ; Hahn, Song-Yop ; Kim, Dong-Hun ; Cha, Gneesoo ; Choi, Kyeong-Dal

Author_Institution

Dept. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

4091

Lastpage

4093

Abstract

To ensure reliable operation of superconducting field windings of a superconducting generator it is necessary to screen the field windings from time-varying magnetic fields. An electrothermal shield is used for this screening in order to protect the superconducting material from quench phenomena. This screening effect is due to the eddy currents in the electrothermal shield. In this paper, these eddy currents in the conducting shell are analyzed numerically by using a 3-dimensional indirect boundary integral equation method (IBIEM)

Keywords

AC generators; boundary integral equations; eddy currents; magnetic shielding; numerical analysis; superconducting machines; 3D indirect boundary integral equation method; IBIEM; conducting shell; eddy currents; electrothermal shield; numerical analysis; quench phenomena; screening effect; superconducting field windings; superconducting generator; time-varying magnetic fields; Damping; Eddy currents; Electrothermal effects; Integral equations; Magnetic analysis; Magnetic fields; Magnetic shielding; Shock absorbers; Superconducting magnets; Superconducting materials;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800765

Filename

800765