Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Design of an HTS Transformer with OLTC

OLTC를 고려한 고온 초전도 변압기의 설계

  • 최지훈 (한국산업기술대 에너지대학원) ;
  • 이승욱 (기초전력연구원) ;
  • 박명진 (기초전력연구원) ;
  • 주형길 (한국산업기술대 메카트로닉스공학과) ;
  • 한진호 (한국산업기술대 에너지대학원) ;
  • 한송엽 (기초전력연구원) ;
  • 최경달 (한국산업기술대 에너지대학원)
  • Published : 2007.03.31
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Abstract

HTS transformers which have been developed until now had only fundamental structures. Among the auxiliary functions of conventional transformers, voltage regulating is the most important one. For the voltage regulation, conventional transformers are equipped with on load tap changers (OLTCS). In this paper, we describe the possibility of the HTS transformer with OLTC. For the case study, we designed a single phase 33 MVA HTS transformer with OLTC. It is one of three individual HTS transformers which composes a 3 phase, 100 MVA transformer. It is expected to substitute for a 3 phase, 60 MVA conventional transformer in Korea. The parameters of an HTS transformer are varied due to the gap length between primary and secondary windings. The length was decided for the transformer to have the impedance of 12 %. Its size was limited to the one of the conventional transformer. The characteristics of the HTS transformer were analyzed in both case of having OLTC and not.

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References

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