TY - JOUR
T1 - Transient thermal characteristics of cryocooler-cooled HTS coil for SMES
AU - Ishiyama, A.
AU - Yanai, M.
AU - Morisaki, T.
AU - Ueda, H.
AU - Akita, S.
AU - Kouso, S.
AU - Tatsuta, Y.
AU - Abe, H.
AU - Tasaki, K.
N1 - Funding Information:
Manuscript received October 4, 2004. This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) under the Research and Development of Superconducting Magnetic Energy Storage System project sponsored by the Agency of Natural Resources and Energy, Ministry of Economy, Trade and Industry (METI).
PY - 2005/6
Y1 - 2005/6
N2 - Thermal behavior of high-temperature super-conducting (HTS) coil is exceedingly different from that of low-temperature superconducting (LTS) coil. Therefore for the sake of the application of HTS coil to practical use, establishment of a new stability criterion for coil design becomes indispensable. In this study, a small-sized cryocooler-cooled HTS coil wound with Bi-2223/Ag tape was constructed and tested to evaluate the electromagnetic and thermal characteristics in the cryocooler-cooled HTS coil. We carried out experiments subjected to pulse current operation supposing SMES for power system stabilization. The simulation by a newly developed computer program based on the finite element method (FEM) agreed well with experimental results. In the computer program, short-sample data concerning the E-J characteristics, which depend on the orientation of applied magnetic field to the wide face of Bi-2223Ag tape, was adopted. By using the computer program, we also evaluate the thermal behavior of HTS coil graded according to the magnetic field distribution.
AB - Thermal behavior of high-temperature super-conducting (HTS) coil is exceedingly different from that of low-temperature superconducting (LTS) coil. Therefore for the sake of the application of HTS coil to practical use, establishment of a new stability criterion for coil design becomes indispensable. In this study, a small-sized cryocooler-cooled HTS coil wound with Bi-2223/Ag tape was constructed and tested to evaluate the electromagnetic and thermal characteristics in the cryocooler-cooled HTS coil. We carried out experiments subjected to pulse current operation supposing SMES for power system stabilization. The simulation by a newly developed computer program based on the finite element method (FEM) agreed well with experimental results. In the computer program, short-sample data concerning the E-J characteristics, which depend on the orientation of applied magnetic field to the wide face of Bi-2223Ag tape, was adopted. By using the computer program, we also evaluate the thermal behavior of HTS coil graded according to the magnetic field distribution.
KW - Bi-2223/Ag tape
KW - Cryocooler-cooled coil
KW - Superconducting magnet energy storage
KW - Thermal characteristics
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U2 - 10.1109/TASC.2005.849321
DO - 10.1109/TASC.2005.849321
M3 - Article
AN - SCOPUS:22044450227
VL - 15
SP - 1879
EP - 1882
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2 PART II
ER -