Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
권호 표지
DOI QR코드

DOI QR Code

Fault Current Limitation by a Superconducting Coil with a Reversely Magnetized Core for a Fault Current Controller

  • Ahn, Min Cheol (Department of Electrical Engineering, Kunsan National University) ;
  • Ko, Tae Kuk (School of Electrical and Electronic Engineering, Yonsei University)
  • Received : 2012.11.13
  • Accepted : 2012.11.23
  • Published : 2012.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents an experimental and numerical study on current limiting characteristics of a fault current controller (FCC). The FCC consists of an AC/DC power converter, a superconducting coil, and a control unit. Even though some previous researches proved that the FCC could adjust the fault current level, the current limiting characteristics by the superconducting coil should be investigated for design of the coil. In this paper, four kinds of model coils were tested; 1) air core, 2) iron core without any bias, 3) reversely magnetized core (RMC) using permanent magnets, and 4) RMC using an electromagnet. Based on a comparative study, it is confirmed that a RMC by an electromagnet (EM) could increase the effective inductance of the coil. In this paper, a numerical code to simulate the HTS coil with RMC was developed. This code can be applied to design the HTS coil with active reversely magnetized bias coil.

Keywords

References

  1. The smart grid: an introduction, Litos strategic communication for US department of energy, 2008.
  2. M. C. Ahn and T. K. Ko, "Proof-of-concept of a Smart Fault Controller with a Superconducting coil for the Smart Grid," IEEE Trans. Appl. Supercond., vol. 21, no. 3, pp. 2201-2204, June 2011. https://doi.org/10.1109/TASC.2010.2091386
  3. J. Y. Jang, W. S. Lee, J. Lee, Y. J. Hwang, H. C. Jo, M. C. Ahn, K. Hur, and T. K. Ko, "Performance Evaluation on Fault Current Controller System for the Applications of Smart Grid," Superconductivity and Cryogenics, vol. 14, no. 2, pp. 12-15, 2012. https://doi.org/10.9714/psac.2012.14.2.012
  4. M. C. Ahn, J. Y. Jang, and T. K. Ko, "Characteristics of an HTS Coil with a Reversely Magnetized Core for the Smart Fault Current Controller," IEEE Trans. Appl. Supercond., vol. 22, no. 3, pp. 5601905, June 2012. https://doi.org/10.1109/TASC.2011.2176294
  5. K. M. Salim, T. Hoshino, M. Nishikawa, I. Muta, and T. Nakamura, "Preliminary Experiments on Saturated DC Reactor Type Fault Current Limiter," IEEE Trans. Appl. Supercond., vol. 12, no. 1, pp. 872-875, March 2002. https://doi.org/10.1109/TASC.2002.1018539

Cited by

  1. Preliminary investigation of Ic homogeneity along the longitudinal direction of YBCO coated conductor tape under tensile loading vol.15, pp.2, 2013, https://doi.org/10.9714/psac.2013.15.2.024