Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Conceptual Design and 3-D electromagnetic analysis of 1MVA HTS Transformer

1MVA 고온 초전도 변압기 개념설계 및 3차원 전자장 해석

  • Park, Chan-Bae (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Kim, Woo-Seok (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Hahn, Song-Yap (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Choi, Kyeong-Dal (Graduate School of Energy, Korea Polytechnic University) ;
  • Joo, Hyeong-Gil (Graduate School of Energy, Korea Polytechnic University) ;
  • Hong, Gye-Won (Graduate School of Energy, Korea Polytechnic University)
  • 박찬배 (서울대학교 전기컴퓨터 공학부) ;
  • 김우석 (서울대학교 전기컴퓨터 공학부) ;
  • 한송엽 (서울대학교 전기컴퓨터 공학부) ;
  • 최경달 (한국산업기술대학교 에너지 대학원) ;
  • 주형길 (한국산업기술대학교 에너지 대학원) ;
  • 홍계원 (한국산업기술대학교 에너지 대학원)
  • Published : 2002.07.10
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Abstract

This paper presents conceptual design and 3-D electromagnetic analysis of 1MVA transformer with BSCCO-2223 High Tc Superconducting (HTS) tapes. The rated voltages of each sides of the transformer are 22.9 kV and 6.6 kV, and double pancake windings were adopted. High voltage and Low voltage sides were composed of several double pancake windings. Four HTS tapes were wound in parallel for the windings of low voltage side and were transposed in order to distribute the currents equally in each conductor. The transformer core was designed as a shell type core made of laminated silicon steel plates and the core is separated with the windings by a cryostat with Fiberglass Reinforced Plastics(FRP). A sub-cooling system using $LN_2$ were designed to maintain the coolant temperature of 65K. Finally perpendicular components of magnetic field applied to tapes were calculated 0.24T in the rated operation using 3-D analysis. A real 1MVA HTS transformer will be manufactured in near future based on the design parameters presented in this paper.

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