NbTi thermally controlled switches for superconducting converters with operation frequency up to 50 Hz. Part 2: Theory and analysis

G.B.J. Mulder, O.A. Shevchenko, M.A. Fedorovsky, H.H.J. ten Kate

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    Abstract

    A review is given of several known thermally controlled switches developed for superconducting converters. It shows their rather low frequency of operation (up to a few Hz) which strongly differs from the industrial frequency. This is not only due to the long recovery times of the switches, but also to the fact that the efficiency drops as the frequency increases. To develop switches suitable for 50 Hz, having reasonable efficiency, a theoretical model of the switch is necessary. Such a model is presented here, and illustrated for 50 Hz switches made from NbTi foil.
    Original languageEnglish
    Pages (from-to)451-454
    Number of pages4
    JournalCryogenics
    Volume32
    Issue numberSuppl. 1
    DOIs
    Publication statusPublished - 1992
    Event14th International Cryogenic Engineering Conference, ICEC 1992 - Kiev, Russian Federation
    Duration: 8 Jun 199212 Jun 1992
    Conference number: 14

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