Over-current characteristics of YBCO superconducting cable

X. Wang, H. Ueda, Atsushi 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 - 2009 Oct 15

    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

    Over-current characteristics of YBCO superconducting cable. / Wang, X.; Ueda, H.; Ishiyama, Atsushi; 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, H. ; Ishiyama, Atsushi ; 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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