AC loss evaluation of MgB 2 superconducting windings located in a stator core slot with a finite-element method

Kazuhiro Kajikawa, Ryota Osaka, Taketsune Nakamura, Michinaka Sugano, Tsuyoshi Wakuda

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

AC losses in stator windings of fully superconducting motors with an MgB 2 wire are numerically evaluated by means of a finite-element method using edge elements for a self-magnetic field. The physical properties of the MgB 2 wire for numerical calculations are obtained from the corresponding experiments with an existing wire. It is assumed that the voltage-current characteristics of the MgB 2 wire are given by Bean's critical-state model, in which the critical current density is independent of the local magnetic field. The influences of core slot size and turn number of windings on the AC losses are discussed quantitatively toward the optimum design of the stator winding with the MgB2 wire.

Original languageEnglish
Pages (from-to)987-991
Number of pages5
JournalJournal of Superconductivity and Novel Magnetism
Volume24
Issue number1-2
DOIs
Publication statusPublished - Jan 1 2011

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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