Title :
AC Loss and Thermal Stability of HTS Model Coils for a 600 kJ SMES
Author :
Park, Myung-Jin ; Kwak, Sang-Yeop ; Kim, Woo-Seok ; Lee, Seoung-Wook ; Lee, Ji-Kwang ; Han, Jin-Ho ; Choi, Kyeong-Dal ; Jung, Hyun-Kyo ; Seong, Ki-Chul ; Hahn, Song-Yop
Author_Institution :
Electr. Eng. & Sci. Res. Inst., Seoul
fDate :
6/1/2007 12:00:00 AM
Abstract :
A 600 kJ superconducting magnetic energy storage system (SMES) project with high temperature superconductor (HTS) started as a national project in Korea. The HTS model coils were designed and fabricated for a preliminary test prior to the creation of a full scale prototype. Single reinforced BSCCO-2223 wires were used for the model coils and the operating temperature was decided to be 20 K. Even though an SMES is not an AC-powered device, time-varying currents during the charging and discharging periods lead to the generation of time-variation magnetic fields applied to the model coils and the generation of AC loss. In this paper, AC loss and the temperature distribution of model coils are analyzed and discussed.
Keywords :
barium compounds; high-temperature superconductors; losses; magnetic fields; superconducting magnet energy storage; superconducting magnets; thermal stability; AC loss; high temperature superconductor; reinforced BSCCO-2223 wire; superconducting magnetic energy storage system; temperature 20 K; temperature distribution; thermal stability; time-variation magnetic field; AC generators; High temperature superconductors; Magnetic fields; Prototypes; Samarium; Superconducting coils; Superconducting magnetic energy storage; Testing; Thermal stability; Wires; AC loss; HTS SMES; magnet; thermal stability;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.899107
