Numerical evaluation of AC losses in HTS wires with 2D FEM formulated by self magnetic field

Kazuhiro Kajikawa, Toshihiro Hayashi, Ryoji Yoshida, Masataka Iwakuma, Kazuo Funaki

Research output: Contribution to journalConference article

48 Citations (Scopus)

Abstract

The ac losses of high critical-temperature superconducting (HTS) wires are numerically calculated by means of a finite element method (FEM), which is formulated with a self magnetic field due to an induced current as unknown. The numerical model is straight HTS wires carrying an alternating transport current in an external ac magnetic field perpendicular to the wire axis. In this situation, the electromagnetic field around the wires is given by two-dimensional (2D) Maxwell's equations. It is also assumed that the transport property is represented by either the critical state model or the power-law model, in which the electric field is proportional to the power of the current density. The obtained losses are compared with conventional theoretical curves in several simple geometries.

Original languageEnglish
Pages (from-to)3630-3633
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume13
Issue number2 III
DOIs
Publication statusPublished - Jun 1 2003
Event2002 Applied Superconductivity Conference - Houston, TX, United States
Duration: Aug 4 2002Aug 9 2002

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All Science Journal Classification (ASJC) codes

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

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