Title :
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
fDate :
6/1/2009 12:00:00 AM
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;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2009.2019238
