Analysis on influence of temporal and spatial profiles of disturbance on stability of pool-cooled superconductor [in LHD]

Author

Fujiwara, T. ; Ohnishi, T. ; Noto, K. ; Sugita, K. ; Yamamoto, J.

Author_Institution

Fac. of Eng., Iwate Univ., Morioka, Japan

Volume

4

Issue

2

fYear

1994

fDate

6/1/1994 12:00:00 AM

Firstpage

56

Lastpage

60

Abstract

An influence of temporal and spatial profiles of thermal disturbance on the transient stability of superconductors is analyzed. We consider two types of pool-cooled superconductors: one conductor has the cross-sectional pattern where the stabilizer is located outside the superconducting cable; the other conductor has the stabilizer inside the superconducting cable. The computational result shows the former type of conductor is more affected by variations of the transport current and the temporal and spatial profiles of the disturbance than the latter. As a result, we recommend that the superconducting cable be located near the coolant in high current monolithic superconductor.<>

Keywords

fusion reactor theory and design; superconducting cables; superconducting magnets; LHD; high current monolithic superconductor; large helical device; metal stabilizer; pool-cooled superconductors; spatial profiles; superconducting cable; superconducting coils; temporal profiles; transient stability; transport current; Conductors; Copper; Niobium compounds; Space heating; Stability analysis; Superconducting cables; Superconductivity; Thermal conductivity; Thermal stability; Titanium compounds;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.291691

Filename

291691