Low AC Loss in a 3 kA HTS Cable of the Dutch Project

Publication: Research - peer-reviewConference article – Annual report year: 2012

  • Author: Chevtchenko, Oleg, Netherlands

    Technical University of Delft, Netherlands

  • Author: Zuijderduin, Roy, Netherlands

    Technical University of Delft, Netherlands

  • Author: Smit, Johan, Netherlands

    Technical University of Delft, Netherlands

  • Author: Willén, Dag, Denmark

    NKT Cables Group, Denmark

  • Author: Lentge, Heidi, Denmark

    NKT Cables Group, Denmark

  • Author: Thidemann, Carsten, Denmark

    NKT Cables Group, Denmark

  • Author: Traeholt, Chresten

    Electric Components, Department of Electrical Engineering, Technical University of Denmark, Denmark

  • Author: Melnik, Irina, Netherlands

    Alliander, Netherlands

  • Author: Geschiere, Alex, Netherlands

    Alliander, Netherlands

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Requirements for a 6km long high temperature superconducting (HTS) AC power cable of the Amsterdam project are: a cable has to fit in an annulus of 160mm, with two cooling stations at the cable ends only. Existing solutions for HTS cables would lead to excessively high coolant pressure drop in the cable, potentially affecting public acceptance of the project. A way out would be to substantially reduce AC losses from 1 down to about 0.1W/m per phase at rated current of 3 kArms, frequency of 50Hz and temperature of 77K. In this paper we discuss a strategy towards this ambitious goal, a concept design of the single phase cable 3 kA conductor made of YBCO tapes and present corresponding experimental and simulation data supporting the developed approach leading directly to this goal. HTS cable model was made that show a drastically reduced AC loss. The low loss was achieved by using appropriate pitch angles for two-layer cable conductor of relatively large diameter, by minimizing the gaps between the HTS tapes, and by using narrow HTS tapes that conform well to the roundness of the underlying former. AC loss of 0.12W/m at 3 kArms was measured at a frequency of 60Hz and at a temperature of 77K.
Original languageEnglish
JournalPhysics Procedia
Publication date2012
Volume36
Pages1285-1289
ISSN1875-3892
DOIs
StatePublished

Conference

ConferenceEuropean Conference on Applied Superconductivity
CountryNetherlands
CityHauge
Period18/09/1123/09/11
CitationsWeb of Science® Times Cited: 0

Keywords

  • Long HTS AC power cable, Dutch project, 3 kA class YBCO cable conductor, Single phase model, Very low AC losses at 60Hz and 77K, Concept, Experiment, Simulation
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