The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Analysis of the Operational Characteristic of a High-Tc Superconducting Power Supply for Charging of the Superconducting Magnet

초전도자석 충전용 고온초전도전원장치의 특성해석

  • 윤용수 (안산공과대학 전기과) ;
  • 김호민 (연세대학교 전기전자공학과) ;
  • 안민철 (연세대학교 전기전자공학과) ;
  • 배덕권 (연세대학교 전기전자공학과) ;
  • 고태국 (연세대학교 전기전자공학과)
  • Published : 2002.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents the design and fabrication of a high-Tc superconducting (HTS) power supply for charging of the HTS magnet load, and its characteristics have been analyzed through experiments. HTS power supply consists of two heaters, an electromagnet, a Bi-2223 solenoid and a Bi-2223 pancake magnet load. In this experiment, 331 mH electromagnet and 0.8 A dc heater current were used, and 8.5 sec and 17 sec were used for pumping period. Mechanism of the superconducting switch is used for heater-trigger. In order to measure the pumping-current with respect to the magnet flux changes, hall sensor was installed at the center of the Bi-2223 pancake load. The experimental observations have been compared with the theoretical predictions. In this experiment, the pumping-current has reached about 1.2 A. In computer simulation, the maximum pumping-current of the system has been predicted to be about 2.7 A.

Keywords

References

  1. J. H. Bae, Y. S. Oh, S. J. Lee, and T. K. Ko, 'The Design, Manufacture and Characteristic Experiment of a Superconducting Fluxpump with Superconducting Excitation Coil', IEEE Transaction on Appl. Superconduct, vol.7, no.2, pp.672-675, June, 1998 https://doi.org/10.1109/77.614593
  2. O. K. Mawardi, S. A. Mueler and R. A. Michelotti, 'Brushless superconducting alternator', IEEE Trans. Magn., vol.13, no.1, pp.780-783, January, 1977 https://doi.org/10.1109/TMAG.1977.1059303
  3. G. Mulder, H. ten Kate, H. Krooshoop and L. Klundert, 'Development of a thermally switched superconducting rectifier for 100 kA', IEEE Transaction on magn., vol.27, no.2, pp.2333-2336, March 1991 https://doi.org/10.1109/20.133685
  4. Yong-Soo Yoon, Ho-Min Kim, Sang-Jin Lee and Tae Kuk Ko, 'Analysis of the operational Characteristics of a Heater-trigger type high-Tc superconducting power supply', IEEE Transaction on Appl. Superconduct., vol.9, no.4, pp.4708-4714, December 1999 https://doi.org/10.1109/77.819342
  5. Yong-Soo Yoon, Ho-Min Kim, Sang-Jin Lee and Tae Kuk Ko, 'Design, fabrication and testing of a heater-trigged high-Tc superconducting power supply', IEEE Transaction on Appl. Superconduct., vol.10, no.1, pp.1418-1421, March 2000 https://doi.org/10.1109/77.828505
  6. W. Press, S. Teukolsky, W. Vetterling and B. Flannery, Numerical Recipes C, Cambridge Univ. Press., New York, pp. 762-782, 1992
  7. A. Rose-Innes and E. Rhoderick, Introduction to Superconductivity, Pergamon Press, Oxford, pp. 3-15, 1978
  8. D. O' Kelly, Performance and Control of Electrical Machine, McGraw Hill Book Company, New York, pp. 25-48, 1992
  9. J. Nilsson and S. Riedel, Electric Circuits, Addison-Wesley Publishing Company, New York, pp. 495-546, 1996