Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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AC Loss Effects on the Design of HTS Windings for 1 MVA Power Transformer

  • Kim, Jong-Tae (Korea Polytechnic University, Electrical Engineering and Science Research Institute, Seoul National University) ;
  • Kim, Woo-Seok (Korea Polytechnic University, Electrical Engineering and Science Research Institute, Seoul National University) ;
  • Kim, Sung-Hoon (Korea Polytechnic University, Electrical Engineering and Science Research Institute, Seoul National University) ;
  • Choi, Kyeong-Dal (Korea Polytechnic University, Electrical Engineering and Science Research Institute, Seoul National University) ;
  • Hong, Gye-Won (Korea Polytechnic University, Electrical Engineering and Science Research Institute, Seoul National University) ;
  • Joo, Hyeong-Gil (Korea Polytechnic University, Electrical Engineering and Science Research Institute, Seoul National University) ;
  • Hahn, Song-Yop (Korea Polytechnic University, Electrical Engineering and Science Research Institute, Seoul National University)
  • Published : 2004.11.01
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Abstract

AC loss is one of the important parameters in HTS (High Temperature Superconducting) AC devices. Among the HTS AC power devices, the transformer is an essential part in electrical power system. But, AC loss is one of the most serious problems of the HTS transformer, especially with pancake windings, because high alternating magnetic field is applied perpendicularly to the surface of BSCCO wire in HTS windings of that, comparing with the other HTS AC power devices. For the reason above the calculation of AC loss generated in the HTS windings should be carried out in advance when designing the HTS transformer. In the paper we performed study for optimization of winding design to minimize the magnetization loss of HTS winding such as the spaces between pancake windings and operating temperature of HTS wire. The calculation of the AC loss was accomplished by 2-demensional Finite Element Method.

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References

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