Title :
Excitation Tests of Prototype HTS Coil With Bi2212 Cables for Development of High Energy Density SMES
Author :
Tosaka, T. ; Koyanagi, K. ; Ohsemochi, K. ; Takahashi, M. ; Ishii, Y. ; Ono, M. ; Ogata, H. ; Nakamoto, K. ; Takigami, H. ; Nomura, S. ; Kidoguchi, K. ; Onoda, H. ; Hirano, N. ; Nagaya, S.
Author_Institution :
TOSHIBA Corp., Yokohama
fDate :
6/1/2007 12:00:00 AM
Abstract :
Development of the SMES using high temperature superconducting (HTS) coil has progressed as a Japanese national project since FY 2004. The objective of the project is to obtain around twice the normal energy density via an HTS-LTS "hybrid" coil system compared to an LTS coil system. The HTS coil is composed of sixteen double-pancake coils and the double-pancake coil is wound with a Bi2212 Rutherford-type cable. The HTS coil is operated at 4.2 K in liquid helium bath with the LTS coil, and operated at maximum field of 8.9 T. Before we made a hybrid coil system, we verified the design issues using HTS experimental coils. In this paper mechanical compression tests, DC operation tests and thermal runaway tests using the experimental coils are discussed.
Keywords :
bismuth compounds; calcium compounds; compressive testing; high-temperature superconductors; strontium compounds; superconducting cables; superconducting coils; superconducting device testing; superconducting magnet energy storage; Bi2212 cables; Bi2Sr2CaCu2O8 - Interface; DC operation tests; HTS-LTS hybrid coil system; Japanese national project; Rutherford-type cable; SMES; double-pancake coils; excitation tests; high-temperature superconducting coil; magnetic flux density 8.9 T; mechanical compression tests; temperature 4.2 K; thermal runaway tests; Compressive stress; High temperature superconductors; Plastic insulation; Prototypes; Research and development; Samarium; Superconducting cables; Superconducting coils; Superconducting magnetic energy storage; Testing; Bi2212; HTS; Rutherford cable; SMES; high energy density; hybrid; thermal runaway;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.899871
