Copper stabilization of YBCO coated conductor for quench protection

被引：35

作者：

Fu, Y ^{[1
]}

Tsukamoto, O

Furuse, A

机构：

[1] Yokohama Natl Univ, Fac Engn, Yokohama, Kanagawa 2408501, Japan

[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2003年 / 13卷 / 02期

关键词：

high-temperature superconductors; quench protection; stability; superconducting coil;

D O I：

10.1109/TASC.2003.812889

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The required amount of copper stabilizer to protect a YBCO conductor coil from damage caused by a hot spot due to a quench is studied in this paper. YBCO coated conductors which are made by deposition of thin YBCO film on, high resistance metal substrates are highly resistive when they are quenched. Therefore, stabilization and quench protection are more important for YBCO conductors than Bi/Ag sheathed tapes which have low resistance silver matrix. In the work we numerically calculated maximum temperature rise of a YBCO conductor quenched by a local disturbance during the sequence of quench detection and energy dump. In the analysis, necessary amount of copper to keep the maximum temperature of the conductor below a. threshold value is calculated for cases of conduction cooled coils of dry windings. Based on the analysis, optimum conductor design is discussed to protect the coil from a quench reliably.

引用

页码：1780 / 1783

页数：4