The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Estimation of the Magnetic Field and the Critical Current of HTS BSCCO Pancake Windings

고온초전도 BSCCO 팬케이크 권선에 인가되는 자장과 임계전류의 산정

  • 구명환 (순천향대학교 대학원 전기통신시스템공학과) ;
  • 강명훈 (순천향대학교 대학원 전기통신시스템공학과) ;
  • 이희준 (순천향대학교 전기통신시스템공학과) ;
  • 차귀수 (순천향대학교 전기통신시스템공학과)
  • Published : 2008.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

Critical current of the superconducting machines is limited by the magnetic field. When the magnetic field is not uniform, it is difficult to estimate the magnetic field and the critical current. This paper proposed a method for the estimation of the magnetic field and the critical current of the HTS pancake windings which can be used to generate the high field magnet. A parameter which was needed to calculate the critical current of a BSCCO magnet with 10 pancake windings was obtained by the experiment. Test which was carried out by using single pancake winding and magnet consisting of 10 pancake windings shows the proposed method can be an effective method for the estimation of the critical current of pancake windings.

Keywords

References

  1. M. Beckenbach, et aI, 'Manufacture and Test of a 5T Bi-2223 Insert Coil,' IEEE Trans. on Appled Superconductivity, vol. 15, no. 2, pp. 1484-1487, 2005 https://doi.org/10.1109/TASC.2005.849137
  2. H. Lee, J. Bascunan and Y. Iwasa, 'A High-Temperature Superconducting Double-Pancake Insert for an NMR Magnet,' IEEE Trans. on Appled Superconductivity, vol. 13, no. 2, pp. 1546-1549, 2003 https://doi.org/10.1109/TASC.2003.812770
  3. K. Lee, M. Kang, G. Cha, H. Lim and T. Ahn, 'Properties of an HTS Magnet with Pancake Windings Excited by Multiple Power Sources,' IEEE Trans. on Applied Superconductivity, vol. 17, no. 2, 2007, In print
  4. J. Pitel, P. Kovac and I. Husek, 'Calculation of the critical current of Bi(2223)/Ag tapes and coils with reduced anisotropy in Ic(B) characteristic - effect of different proportional representations of the filaments oriented parallel and perpendicularly to the tape surface,' Physica C, 330, pp. 130-140, 2000 https://doi.org/10.1016/S0921-4534(99)00623-1
  5. A. Korpela, el, al., 'Relation between different critical current criteria and quench current in HTS magnets,' Physica C, 372-376, pp. 1360-1363, 2002 https://doi.org/10.1016/S0921-4534(02)01029-8
  6. M. Yamaguchi, et al, 'A Study on Performance Improvements of HTS Coil,' IEEE Trans. on Applied Superconductivity, vol. 13, no. 2, pp. 1848-1851 2003 https://doi.org/10.1109/TASC.2003.812923
  7. S. Ishiguri, et al., 'Study on the optimum design of a high temperature superconducting coil,' Physica C, 426-431 pp. 1390-1396, 2005 https://doi.org/10.1016/j.physc.2005.02.108