Transient thermal characteristics of cryocooler-cooled HTS coil for SMES

A. Ishiyama, M. Yanai, T. Morisaki, H. Ueda, S. Akita, S. Kouso, Y. Tatsuta, H. Abe, K. Tasaki

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1879-1882
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume15
Issue number2 PART II
DOIs
Publication statusPublished - Jun 1 2005
Externally publishedYes

Keywords

  • Bi-2223/Ag tape
  • Cryocooler-cooled coil
  • Superconducting magnet energy storage
  • Thermal characteristics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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  • Cite this

    Ishiyama, A., Yanai, M., Morisaki, T., Ueda, H., Akita, S., Kouso, S., Tatsuta, Y., Abe, H., & Tasaki, K. (2005). Transient thermal characteristics of cryocooler-cooled HTS coil for SMES. IEEE Transactions on Applied Superconductivity, 15(2 PART II), 1879-1882. https://doi.org/10.1109/TASC.2005.849321