Numerical analysis of AC loss and current distribution characteristics of co-axial multi-layer high temperature superconducting cable

Author

Watabe, Akira ; Fukui, Satoshi ; Yamaguchi, Mitsugi ; Sato, Takao ; Takao, Tomoaki ; Tsukamoto, Osami

Author_Institution

Graduate Sch. of Sci. & Technol., Niigata Univ., Japan

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

678

Lastpage

681

Abstract

A numerical model to calculate the inter-layer current distributions and the AC losses in co-axial multi-layer cable conductors was developed. The inter-layer current distributions and the AC losses in 4-layer cables were numerically calculated for various combinations of twist pitches and twist directions of the cables. With the numerical model, the twist pitch combinations to equalize the inter-layer current distribution and to reduce the AC loss were also investigated. The analytical results showed the remarkable dependence of the losses and the current distributions on the twist pitches and the directions of the cables. The optimized cable structures were discussed by the numerical results.

Keywords

coaxial cables; critical current density (superconductivity); current distribution; high-temperature superconductors; losses; superconducting cables; superconducting tapes; 4-layer cables; AC loss; cable structure optimization; coaxial multilayer HTS cable; coaxial multilayer cable conductors; high temperature superconducting cable; interlayer current distribution; numerical analysis; numerical model; twist directions; twist pitches; Coaxial cables; Current distribution; High temperature superconductors; Numerical analysis; Numerical models; Power cables; Superconducting cables; Superconducting epitaxial layers; Superconducting transmission lines; Temperature distribution; AC loss; co-axial multi-layer cable; inter-layer current distribution;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.830028

Filename

1324884