NbTi foil thermally controlled switches for superconducting converters with operation frequency up to 50 Hz. Part 1: Experiment

O.A. Shevchenko, G.B.J. Mulder, N.V. Markovsky, H.H.J. ten Kate

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Abstract

The increase of the operation frequency of superconducting converters up to 50 Hz opens new ways to improve their parameters. Thermally controlled switches using NbTi foil are able to operate at industrial frequency with reasonable efficiency and dynamic parameters. Such switches have been developed and tested. The paper presents experimental results of static and dynamic behavior of the switches. The rectification mode was tested with different shapes of the applied voltage, with currents from 150 to 450 A, voltages from 10 mV to 2.5 V and recovery times between 1 and 10 ms. The switches presented here have experimentally demonstrated superior dynamic parameters at higher efficiency than the ones reported in literature up to now.
Original languageEnglish
Pages (from-to)447-450
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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