Dynamic Thermal Characteristics of HTS Coil for Conduction-Cooled SMES

Author

Kojima, Hiroki ; Chen, Xin ; Hayakawa, Naoki ; Endo, Fumihiro ; Okubo, Hitoshi

Author_Institution

EcoTopia Sci. Inst., Nagoya Univ., Nagoya, Japan

Volume

19

Issue

3

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

2036

Lastpage

2039

Abstract

In this paper, we investigate the thermal runaway characteristics of a BSCCO HTS single pancake coil conduction-cooled with a 4 K-GM cryo-cooler system. We also evaluate the static and dynamic characteristics of the HTS coil by measuring the temporal evolution of the temperature and the voltage for steady current and the typical current patterns of the load fluctuation compensation at different ambient temperatures T₀ in the range of 20-50 K. Moreover, we experimentally discuss the criterion for monitoring the conduction-cooled HTS SMES system during compensating operation for load fluctuations.

Keywords

bismuth compounds; calcium compounds; copper compounds; high-temperature superconductors; strontium compounds; superconducting coils; superconducting magnet energy storage; BiSrCaCuO; HTS coil; conduction-cooled SMES; cryo-cooler system; dynamic thermal characteristics; single pancake coil conduction-cooled; superconducting magnet energy storage; temperature 20 K to 50 K; Conduction-cooling; HTS; SMES; thermal runaway;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2009.2019238

Filename

5153121