3-D field distribution effect on HTS synchronous motor

고온초전도 동기모터의 3차원 자장 분포 영향

  • Baik, S.K. (KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE) ;
  • Sohn, M.H. (KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE) ;
  • Lee, E.Y. (KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE) ;
  • Kwon, W.S. (KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE) ;
  • Jo, Y.S. (KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE) ;
  • Kwon, Y.K. (KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE)
  • 백승규 (한국전기연구원 초전도응용연구그룹) ;
  • 손명환 (한국전기연구원 초전도응용연구그룹) ;
  • 이언용 (한국전기연구원 초전도응용연구그룹) ;
  • 권운식 (한국전기연구원 초전도응용연구그룹) ;
  • 조영식 (한국전기연구원 초전도응용연구그룹) ;
  • 권영길 (한국전기연구원 초전도응용연구그룹)
  • Published : 2003.07.21

Abstract

A superconducting synchronous motor has different electromagnetic structure from the conventional machine. With the help of superconductor having much higher operating current density than normal conductor, superconducting motor can eliminate most of iron core filled inside of the conventional machine. This air-cored structure could be analysed and designed theoretically based on 2-dimensional(2-D) magnetic field distribution assuming that the windings are extended infinitely toward the axial direction. However, the actual structure of superconducting motor has the end regions interconnecting the straight parts of the same cross-section with the 2-D model. Therefore, this actual 3-D model has smaller field distribution than the 2-D model. In this paper, we consider the effect of the end regions on the output of a HTS model motor and suggest more accurate design approach through comparison of 2-D and 3-D magnetic field analysis results.

Keywords