대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1997년도 하계학술대회 논문집 A
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- Pages.244-246
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- 1997
초전도 Power Supply의 전류펌핑 과정에서 발생하는 조기 퀜치발생 진단
A study on the Detection of Premature Quench Generated in the Process of Current Pumping in a Superconducting Power Supply
- 김호민 (연세대학교 전기공학과 초전도연구실) ;
- 배준한 (연세대학교 전기공학과 초전도연구실) ;
- 노정섭 (연세대학교 전기공학과 초전도연구실) ;
- 심기덕 (연세대학교 전기공학과 초전도연구실) ;
- 장원갑 (연세대학교 전기공학과 초전도연구실) ;
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고태국
(연세대학교 전기공학과 초전도연구실)
- Kim, Ho-Min (Dept. of E. E. YONSEI UNIV.) ;
- Bae, Joon-Han (Dept. of E. E. YONSEI UNIV.) ;
- Noh, Jeong-Sub (Dept. of E. E. YONSEI UNIV.) ;
- Sim, Ki-Deok (Dept. of E. E. YONSEI UNIV.) ;
- Jang, Won-Kap (Dept. of E. E. YONSEI UNIV.) ;
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Ko, Tae-Kuk
(Dept. of E. E. YONSEI UNIV.)
- 발행 : 1997.07.21
초록
This paper is to analyze the Premature Quench characteristics of a rotating magnet type superconducting fluxpump and consider the method of detecting and protecting this premature quench. Practically, there is contact resistance between the fluxpump and the load, namely the S.C. magnet. The thermal increase due to the contact resistance cause the premature quench before the charging current amounts to the critical current of S.C magnet. Therefore, this paper is devoted to solving the heat equation on contact region using cylindrical coordinates and to calculating the rate of thermal increase during the current is pumped up. Doing so, the predictive value of the maximum pumping current is obtained. It has been verified that the results of simulation are coincident with those of experiment. It must be considered essentially to minimize the contact resistance in designing the S.C fluxpump system in order to protect the premature quench and improve the maximum pumping current.
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