Analysis of discharging characteristics in a Bi-2223/Ag coil for SMES with consideration of cooling capacity of a cryocooler

Kohei Higashikawa, Taketsune Nakamura, Hiroshi Okamoto

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

We investigated discharging characteristics of a Bi-2223/Ag coil by means of thermo-electromagnetic coupled analysis. The objective was to evaluate the thermal behavior of conduction-cooled high temperature superconducting (HTS) coils when they are applied to superconducting magnetic energy storage (SMES) systems for voltage dip compensation. The electromagnetic analysis adopted finite element method (FEM) considering the J - E expressions, which can quantitatively estimate the experimental data obtained from the tape in wide ranges of temperature (20-77 K), external magnetic field (0.02-3 T) and its applied direction (arbitrary). The thermal analysis also employed FEM, and was performed under new boundary condition where heat flow rate into a cryocooler does not exceed its cooling capacity. It was shown that transient temperature rise occurred in the coil during discharging, and such temperature rise was underestimated for generally applied boundary condition, i.e., fixed value of temperature.

元の言語英語
記事番号1642915
ページ(範囲)578-581
ページ数4
ジャーナルIEEE Transactions on Applied Superconductivity
16
発行部数2
DOI
出版物ステータス出版済み - 6 1 2006
外部発表Yes

Fingerprint

magnetic energy storage
Energy storage
coils
Cooling
cooling
finite element method
boundary conditions
electromagnetism
Temperature
temperature
Boundary conditions
Finite element method
heat transmission
tapes
thermal analysis
flow velocity
Tapes
Thermoanalysis
conduction
Flow rate

All Science Journal Classification (ASJC) codes

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

これを引用

Analysis of discharging characteristics in a Bi-2223/Ag coil for SMES with consideration of cooling capacity of a cryocooler. / Higashikawa, Kohei; Nakamura, Taketsune; Okamoto, Hiroshi.

:: IEEE Transactions on Applied Superconductivity, 巻 16, 番号 2, 1642915, 01.06.2006, p. 578-581.

研究成果: ジャーナルへの寄稿記事

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