着磁されたバルク超電導体の交流磁界印加特性 Trapped Field Characteristic of YBCO Bulk in AC External Magnetic Field

この論文にアクセスする

この論文をさがす

著者

    • 植田 浩史 UEDA Hiroshi
    • 早稲田大学 理工学部 電気・情報生命工学科 Department of Electrical Engineering and Bioscience, Waseda University
    • 森崎 徹 MORISAKI Tohru
    • 早稲田大学大学院 理工学研究科 電気・情報生命専攻 Major in Electrical Engineering and Bioscience, Waseda University
    • 石山 敦士 ISHIYAMA Atsushi
    • 早稲田大学 理工学部 電気・情報生命工学科 Department of Electrical Engineering and Bioscience, Waseda University

抄録

Trapped field characteristics are one of the key factors in the application of high-temperature superconducting bulk, such as magnetic levitation systems, motors, bulk magnets and so on. The immutable trapped field is required in superconducting bulk applications as a quasi-permanent magnet, however, the trapped field is influenced and changed by a time-varying external magnetic field in a realistic operational environment of electrical devices. This means that shielding current distribution within the bulk is changed by the time-varying magnetic field and the transient magnetic flux movement results in temperature rise and finally reduction of the trapped field. In this study, we observed the abrupt reduction of the trapped field for the external AC magnetic field in the range of frequency up to 50 Hz. And we also performed the numerical simulation using a newly developed computer program based on the finite element method (FEM). In the simulation program, the voltage-current (<i>E-J</i>) characteristics, which depend on the irreversibility temperature are taken into account. From these results, it can be considered that the abrupt reduction of the trapped field is caused by the temperature rise due to AC loss.

収録刊行物

  • 電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society

    電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society 124(11), 1357-1364, 2004-11-01

    一般社団法人 電気学会

参考文献:  6件中 1-6件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10013712942
  • NII書誌ID(NCID)
    AN10136334
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854213
  • NDL 記事登録ID
    7138049
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-794
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ