Numerical solution of the transverse resistivity of superconducting cables under AC conditions

Author

Hartmann, R.A. ; Dijkstra, D. ; van Beckum, F.P.H. ; van de Klundert, L.J.M.

Author_Institution

Dept. of Appl. Phys., Twente Univ., Enschede, Netherlands

Volume

25

Issue

2

fYear

1989

fDate

3/1/1989 12:00:00 AM

Firstpage

2131

Lastpage

2134

Abstract

The authors develop a numerical method for calculating the transverse resistivity of superconducting cables. A superconducting cable consists of a twisted bundle of strands with a nonconducting inner region. If such a cable is placed in an external magnetic field, the induced currents will not merely flow in the axial direction, but also around the center, in the plane of the cross section. It is shown that the transverse transport current, which is induced by external fields acting on the cable, can saturate most of the filaments of the superconducting layer. This results in a smaller maximal value of a longitudinal transport current and small coupling losses

Keywords

magnetic field effects; numerical analysis; superconducting cables; AC conditions; coupling losses; external magnetic field; filaments; numerical method; superconducting cables; transverse current; transverse resistivity; Conductivity; Current distribution; Mathematics; Maxwell equations; Numerical models; Physics; Power cables; Superconducting cables; Superconducting epitaxial layers; Superconducting filaments and wires;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.92730

Filename

92730