Numerical simulation of current distribution in cable-in-conduit conductor for ITER TF coil

Hideki Kajitani, Atsushi Ishiyama, Norikiyo Koizumi, Haruyuki Murakami, Hideo Nakajima

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    The critical current of a cable-in-conduit conductor (CICC) for an ITER TF coil was measured using the SULTAN test facility. It was found that a non-uniform current distribution was established due to a non-uniform joint resistance. To evaluate the critical current performance accurately, we used a solder-filled joint. To study the effect of this solder-filled joint on the current distribution, we used a lumped circuit model and a distributed circuit model for the conductor and the joint, respectively, and combined the two to develop a new analysis model. This enabled us to solve the distributed circuit equation using only a few iterations, resulting in considerable reduction of the calculation time. Simulation results showed that, although the current distribution was non-uniform due to the ramping current, it improved at the current sharing temperature. This indicated that the solder-filled joint effectively improved the current distribution.

    Original languageEnglish
    Article number5654549
    Pages (from-to)1964-1968
    Number of pages5
    JournalIEEE Transactions on Applied Superconductivity
    Volume21
    Issue number3 PART 2
    DOIs
    Publication statusPublished - 2011 Jun

    Fingerprint

    current distribution
    Soldering alloys
    cables
    Cables
    coils
    solders
    conductors
    Critical currents
    Networks (circuits)
    Computer simulation
    critical current
    simulation
    Test facilities
    test facilities
    iteration
    Temperature
    temperature

    Keywords

    • CICC
    • Critical current
    • Current distribution
    • Current transfer

    ASJC Scopus subject areas

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

    Cite this

    Numerical simulation of current distribution in cable-in-conduit conductor for ITER TF coil. / Kajitani, Hideki; Ishiyama, Atsushi; Koizumi, Norikiyo; Murakami, Haruyuki; Nakajima, Hideo.

    In: IEEE Transactions on Applied Superconductivity, Vol. 21, No. 3 PART 2, 5654549, 06.2011, p. 1964-1968.

    Research output: Contribution to journalArticle

    Kajitani, Hideki ; Ishiyama, Atsushi ; Koizumi, Norikiyo ; Murakami, Haruyuki ; Nakajima, Hideo. / Numerical simulation of current distribution in cable-in-conduit conductor for ITER TF coil. In: IEEE Transactions on Applied Superconductivity. 2011 ; Vol. 21, No. 3 PART 2. pp. 1964-1968.
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