Over-current characteristics of YBCO superconducting cable

X. Wang, Hiroshi Ueda, A. Ishiyama, M. Yagi, S. Mukoyama, N. Kashima, S. Nagaya, Y. Shiohara

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

To achieve large current capacity and high mechanical flexibility, YBa2Cu3O7 (YBCO) superconducting cables consist of a number of YBCO coated conductors that are assembled and wound spirally on a Cu former. In practical applications, superconducting cables are vulnerable to short-circuit fault currents that are 10-30 times greater than the operating current. Therefore, in order to ensure the stability of YBCO superconducting cables in such a situation and to protect them from the fault currents, it is important to investigate the redistribution of the transport current and electromagnetic coupling between the conductor layer, shield layer, and Cu former. In this study, we carried out experiments on a 10-m-long YBCO model cable, which was manufactured by Furukawa Electric. An over-current with a peak of 31.8 kArms and a duration of 2.02 s was applied to the model cable. We performed numerical simulations using a novel computer program developed using the 3D finite element method to elucidate the electromagnetic and thermal behavior of the YBCO model cable in the presence of an over-current.

Original languageEnglish
Pages (from-to)1717-1721
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume469
Issue number15-20
DOIs
Publication statusPublished - Oct 15 2009
Externally publishedYes

Fingerprint

Superconducting cables
cables
Cables
Electric fault currents
Electromagnetic coupling
Short circuit currents
Computer program listings
conductors
Finite element method
Computer simulation
electromagnetic coupling
short circuits
barium copper yttrium oxide
Experiments
flexibility
finite element method
electromagnetism
computer programs

Keywords

  • FEM
  • Over-current
  • YBCO coated conductor
  • YBCO superconducting cable

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Electronic, Optical and Magnetic Materials

Cite this

Wang, X., Ueda, H., Ishiyama, A., Yagi, M., Mukoyama, S., Kashima, N., ... Shiohara, Y. (2009). Over-current characteristics of YBCO superconducting cable. Physica C: Superconductivity and its Applications, 469(15-20), 1717-1721. https://doi.org/10.1016/j.physc.2009.05.034

Over-current characteristics of YBCO superconducting cable. / Wang, X.; Ueda, Hiroshi; Ishiyama, A.; Yagi, M.; Mukoyama, S.; Kashima, N.; Nagaya, S.; Shiohara, Y.

In: Physica C: Superconductivity and its Applications, Vol. 469, No. 15-20, 15.10.2009, p. 1717-1721.

Research output: Contribution to journalArticle

Wang, X, Ueda, H, Ishiyama, A, Yagi, M, Mukoyama, S, Kashima, N, Nagaya, S & Shiohara, Y 2009, 'Over-current characteristics of YBCO superconducting cable', Physica C: Superconductivity and its Applications, vol. 469, no. 15-20, pp. 1717-1721. https://doi.org/10.1016/j.physc.2009.05.034
Wang, X. ; Ueda, Hiroshi ; Ishiyama, A. ; Yagi, M. ; Mukoyama, S. ; Kashima, N. ; Nagaya, S. ; Shiohara, Y. / Over-current characteristics of YBCO superconducting cable. In: Physica C: Superconductivity and its Applications. 2009 ; Vol. 469, No. 15-20. pp. 1717-1721.
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