Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Fabrication and Test of Persistent Current Switch for HTS Magnet System

  • Hyoungku Kang (Dept. of Electrical & Electronic Eng. Yonsei Univ.) ;
  • Kim, Jung-Ho (Dept. of Electrical & Electronic Eng. Yonsei Univ.) ;
  • Jinho Joo (Dept. of Electrical & Electronic Eng. Yonsei Univ.) ;
  • Yoon, Yong-Soo (Dept. of Electrical & Electronic Eng. Yonsei Univ.) ;
  • Ko, Tae-Kuk (Dept. of Electrical & Electronic Eng. Yonsei Univ.)
  • Published : 2003.05.01
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Abstract

This paper deals with the characteristics of persistent current switch (rCS) system fer applied HTS magnet system. To apply the high-Tc superconductor in superconducting machine such as motror, generator, MAGLEV, MRI, and NMR, the study on high-Tc superconducting persistent current mode must be performed. In this experiment, the PCS system consists otd superconducting magnet, PCS and magnet power supply. The superconducting magnet was fabricated by connecting four double pancake coils (DPCs) in series. The PCS was inductive double pancake coil type and heated up by the SUS 303L tape heater. The optimal length of PCS was calculated and thermal quench state of PCS was simulated by using finite element method(FEM) and compared with experimental results. The optimal energy to normalize the PCS was calculated and introduced. Finally, the persistent current was observed with respect to various ramping up rate and magnitude of charging current.

Keywords

References

  1. IEEE Trans. Applied Superconductivity v.11 no.1 Fabrication of Bi-2223 HTS Magnet with a Superconduting Switch Sang Soo Oh;Hong Soo Ha;Hyun Man Jang;Dong Woo Ha https://doi.org/10.1109/77.920203
  2. IEEE Trans. Superconductivity v.7 no.2 Current Decay Evaluation of Closed HTS Coil Circuits Tsukawa Kiyoshi;Kiyoahi Inoue;Michio Kosuge
  3. Cryogenics v.37 Operation of superconductively jointe Bi-2212 solenidal coil in persistent current mode T.Hase;K.Shibutani;S.Hayashi https://doi.org/10.1016/S0011-2275(97)00005-2
  4. IEEE Trans. on Applied Superconductivity v.12 no.1 Persistent-Mode Operation of a Cryocooler-Cooled HTS Magnet Kei Koyanagi;Shinji Matsumoto;Keiji Fukushima;Tsukasa Kiyoshi https://doi.org/10.1109/TASC.2002.1018446
  5. IEEE Trans. on Applied Superconductivity v.9 no.4 Analysis of the operation Characteristics of a Heater-trigger type high-Tc superconduction power supply Yong Soo Yoon;Ho Min Kim;Sang Jin Lee;Tae Kuk Ko https://doi.org/10.1109/77.819342
  6. IEEE Trans. on Applied Superconductivity v.5 no.2 Optimal Disign of the Superconducting Persistent Current Switch with respect to the Heater Current & the Operating Currents T.K.Ko;Y.S.Oh;S.J.Lee https://doi.org/10.1109/77.402538
  7. IEEE Trans. on Applied Superconductivity Superconducting Bi2Sr2Cu3Ox Closed-loop Coils Carrying Persistent Current at Temperature above77 K Z.Han;P.Vase;Y.Q.Shen;T.Freltoft