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 journalArticle

44 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

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Superconducting wire
alternating current
critical temperature
finite element method
wire
Wire
Magnetic fields
Finite element method
evaluation
Induced currents
Maxwell equations
magnetic fields
Transport properties
Electromagnetic fields
Numerical models
Current density
Electric fields
Temperature
Geometry
Maxwell equation

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Numerical evaluation of AC losses in HTS wires with 2D FEM formulated by self magnetic field. / Kajikawa, Kazuhiro; Hayashi, Toshihiro; Yoshida, Ryoji; Iwakuma, Masataka; Funaki, Kazuo.

In: IEEE Transactions on Applied Superconductivity, Vol. 13, No. 2 III, 01.06.2003, p. 3630-3633.

Research output: Contribution to journalArticle

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