Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Magnetic Field Distribution Analysis of Superconducting Niobium Foil of Linear Type Magnetic Flux Pump using Simulation

시뮬레이션을 이용한 리니어형 자속 플럭스 펌프에서의 초전도 니오븀 박막의 자장분포 해석

  • 이응로 (연세대학교 전기전자공학과) ;
  • 정윤도 (수원대학교 산업기술연구소) ;
  • 배덕권 (국립 충주대학교 전기과) ;
  • 윤용수 (안산공과대학 전기과) ;
  • 고태국 (연세대학교 전기전자공학과)
  • Published : 2009.09.30
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Abstract

We investigated an operating characteristic of linear-type magnetic flux pump (LTMFP) as a current compensator under the various conditions. In order to explain the mechanism of the LTMFP, the magnetic behavior of superconducting Nb foil according to pumping actions should be understood. In this paper, the magnetic field analysis of superconducting Nb foil installed in LTMFP has been performed based on the three-dimensional finite element method (3D FEM). Through the simulation analysis, the normal spot region on the superconducting Nb foil is found to be enhanced swiftly over about 20 Hz. The simulated finding agreed with an analytical estimation based on the phenomenon of magnetic diffusion.

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References

  1. T. Miyazaki, Y. Murakami, T. Hase, M. Shimada, K. Itoh, T. Kiyoshi, T. Takeuchi, K. Inoue, H. Wada, "Development of $Nb_{3}Sn$ Superconductors for a 1 GHz NMR magnet”, IEEE Trans. Appl. Supercond., vol. 9, no. 2, pp. 2505-2508, 1999 https://doi.org/10.1109/77.784991
  2. J.H. Bae, Y.S. Oh, S.J. Lee, T.K. Ko, "The Design Manufacture and Characteristic Experiment of a Superconducting Fluxpump with Superconducting Excitation Coil," IEEE Trans. Appl. Supercond., vol. 7, no. 2, pp. 672-675, 1998 https://doi.org/10.1109/77.614593
  3. Y.D. Chung, I. Muta, T. Hoshino, T. Nakamura, M.H. Sohn, "Design and Performance of Compensator for Decremental Persistent Current in HTS Magnets Using Linear Type Magnetic Flux Pump," Cryogenics, vol. 44, no. 11, pp. 839-844, 2004 https://doi.org/10.1016/j.cryogenics.2004.06.001
  4. Y.D. Chung, S.E. Yang, T.K. Ko, "Operating Analysis of Linear Type Magnetic flux Pump," the Korea Institute of Applied Superconductivity and Cryogenics, vol. 11, no. 2, pp. 20-24, 2009
  5. M . N. Wilson, "Superconducting Magnets," Oxford University Press, pp. 143-145, 1983
  6. I. Muta, H.Tsukiji, T. Itoh, S. Ishli, T. Hoshino and E. Mukai, "Superconducting dynamo and its application to superconducting generator," Cryogenics, vol. 30, pp. 749-752, Sept. 1990
  7. R.P. Huebener, R.T. Kampwirth, R.L. Martin, T.W. Bachee, R.B. Zubeck, "Critical Current Density in Superconducting Niobium Films," Journal of Low Temperature Physics, vol. 19, no. 3, pp. 247-258, 1975 https://doi.org/10.1007/BF00116179