Modeling the current distribution in HTS tapes with transport current and applied magnetic field

Takashi Yazawa, Jan-Jaap Rabbers, Oleg A. Chevtchenko, Bennie ten Haken, Herman H.J. ten Kate, Hideaki Maeda

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Abstract

A numerical model is developed for the current distribution in a high temperature superconducting (HTS) tape, (Bi,Pb)2Sr2 Ca2Cu3Ox-Ag, subjected to a combination of a transport current and an applied magnetic field. This analysis is based on a two-dimensional formulation of Maxwell's equations in terms of an integral equation for the current density J. The finite thickness of the conductor and an arbitrary voltage-current relation (e.g. n-power relation, magnetic field dependency) for the conductor are included in the model. Another important feature is that the model also covers an applied magnetic field in arbitrary directions and a rotating field perpendicular to the conductor, which is of great interest for analyzing the AC loss of HTS (transformer) coils or three-phase electric power cables. A comparison is made with transport current loss measurements on an HTS tape with an AC applied field
Original languageEnglish
Pages (from-to)797-800
Number of pages4
JournalIEEE transactions on applied superconductivity
Volume9
Issue number2
DOIs
Publication statusPublished - 1999

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