AC operating test results for a conduction-cooled HTS coil

Kenji Tasaki, Toru Kuriyama, Shunji Nomura, Yukihiro Sumiyoshi, Hidemi Hayashi, Hironobu Kimura, Masataka Iwakuma, Kazuo Funaki

研究成果: ジャーナルへの寄稿記事

3 引用 (Scopus)

抄録

We fabricated a conduction-cooled HTS coil wound with the conductors composed of four Ag-sheathed Bi2223 tapes, which have no insulator, and a CuNi tape coated with polyimide for reinforcement and insulation. Using the HTS coil we measured AC loss and investigated thermal stability of the conduction-cooled HTS coil. The coil is composed of 12 single-pancake coils and impregnated with epoxy resin. The inner diameter of the coil is φ100 mm, the outer diameter is φ190 mm and the height is 90 mm. The HTS coil carried 800 A at 20 K as designed and generated 2.9 T at the central point of the coil. Sinusoidal currents were supplied to the HTS coil at 20-50 K and AC losses were measured using the electrical method. The AC losses per cycle of the HTS coil increased with increasing the frequency of the current, which indicates the coupling losses would generate between Ag-sheathed Bi2223 tapes in addition to the hysteresis losses. Sinusoidal waveform current of 100 A and 1.32 Hz was continuously supplied to the coil in order to investigate the thermal stability of the coil in AC operations. Although the coil generated an AC loss of 125.6 W, the temperature of the coil became stable approximately 200 sec after starting operation, which indicates that Ag-sheathed Bi2223 coils have high thermal stability in AC operations and are suitable for AC applications.

元の言語英語
ページ(範囲)731-734
ページ数4
ジャーナルIEEE Transactions on Applied Superconductivity
14
発行部数2
DOI
出版物ステータス出版済み - 6 1 2004

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alternating current
coils
conduction
Tapes
Thermodynamic stability
Epoxy Resins
tapes
Polyimides
Epoxy resins
thermal stability
Hysteresis
Insulation
Reinforcement
epoxy resins
reinforcement
polyimides
insulation
waveforms
Temperature
conductors

All Science Journal Classification (ASJC) codes

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

これを引用

Tasaki, K., Kuriyama, T., Nomura, S., Sumiyoshi, Y., Hayashi, H., Kimura, H., ... Funaki, K. (2004). AC operating test results for a conduction-cooled HTS coil. IEEE Transactions on Applied Superconductivity, 14(2), 731-734. https://doi.org/10.1109/TASC.2004.830091

AC operating test results for a conduction-cooled HTS coil. / Tasaki, Kenji; Kuriyama, Toru; Nomura, Shunji; Sumiyoshi, Yukihiro; Hayashi, Hidemi; Kimura, Hironobu; Iwakuma, Masataka; Funaki, Kazuo.

:: IEEE Transactions on Applied Superconductivity, 巻 14, 番号 2, 01.06.2004, p. 731-734.

研究成果: ジャーナルへの寄稿記事

Tasaki, K, Kuriyama, T, Nomura, S, Sumiyoshi, Y, Hayashi, H, Kimura, H, Iwakuma, M & Funaki, K 2004, 'AC operating test results for a conduction-cooled HTS coil', IEEE Transactions on Applied Superconductivity, 巻. 14, 番号 2, pp. 731-734. https://doi.org/10.1109/TASC.2004.830091
Tasaki K, Kuriyama T, Nomura S, Sumiyoshi Y, Hayashi H, Kimura H その他. AC operating test results for a conduction-cooled HTS coil. IEEE Transactions on Applied Superconductivity. 2004 6 1;14(2):731-734. https://doi.org/10.1109/TASC.2004.830091
Tasaki, Kenji ; Kuriyama, Toru ; Nomura, Shunji ; Sumiyoshi, Yukihiro ; Hayashi, Hidemi ; Kimura, Hironobu ; Iwakuma, Masataka ; Funaki, Kazuo. / AC operating test results for a conduction-cooled HTS coil. :: IEEE Transactions on Applied Superconductivity. 2004 ; 巻 14, 番号 2. pp. 731-734.
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