Study on dependence of AC transport current losses in YBCO-coated conductors on distribution of critical current density and n value

Daisuke Miyagi, Osami Tsukamoto

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We measured AC transport current losses in three kinds of thin-film YBCO-coated conductors made by different processes. The results showed that the loss characteristics were different and that some of the conductors did not follow the Norris strip model which is generally believed to well explain the loss characteristics of YBCO conductors. In the paper, an analytical model in which distribution of critical current density and n value of the conductor are taken into consideration is proposed to describe the AC transport current loss characteristics more generally than the Norris strip and elliptical models. It is shown that the analytical model explains well the measured loss characteristics of the three kinds of conductors.

Original languageEnglish
Pages (from-to)26-38
Number of pages13
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Volume152
Issue number2
DOIs
Publication statusPublished - 2005 Jul 1

Keywords

  • AC transport current losses
  • Attribution of critical current density
  • N value
  • YBCO-coated conductor

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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