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논문 기본 정보

자료유형
학술저널
저자정보
Kim, S.K. (Changwon National University) Go, B.S. (Changwon National University) Dinh, M.C. (Changwon National University) Kim, J.H. (Daejeon University) Park, M. (Changwon National University) Yu, I.K. (Changwon National University)
저널정보
한국초전도저온학회 한국초전도·저온공학회논문지 한국초전도·저온공학회논문지 제17권 제1호
발행연도
2015.1
수록면
32 - 35 (4page)

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Many kinds of high temperature superconducting (HTS) devices are being developed due to its several advantages. In particular, the advantages of HTS devices are maximized under the DC condition. A line commutated converter (LCC) type high voltage direct current (HVDC) transmission system requires large capacity of DC reactors to protect the converters from faults. However, conventional DC reactor made of copper causes a lot of electrical losses. Thus, it is being attempted to apply the HTS DC reactor to an HVDC transmission system. The authors have developed a 8 mH class HTS DC reactor and a model-sized LCC type HVDC system. The HTS DC reactor was operated to analyze its operational characteristics in connection with the HVDC system. The voltage at both ends of the HTS DC reactor was measured to investigate the stability of the reactor. The voltages and currents at the AC and DC side of the system were measured to confirm the influence of the HTS DC reactor on the system. Two 5 mH copper DC reactors were connected to the HVDC system and investigated to compare the operational characteristics. In this paper, the operational characteristics of the HVDC system with the HTS DC reactor according to firing angle are described. The voltage and current characteristics of the system according to the types of DC reactors and harmonic characteristics are analyzed. Through the results, the applicability of an HTS DC reactor in an HVDC system is confirmed.

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