대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

$2{\times}3$행렬구조를 갖는 초전도 한류기의 퀜치특성 분석

Analysis on the quenching characteristics of a superconducting fault current limiter with 2 by 3 matrixes

  • Cho, Yong-Sun (Department of Electrical Engineering, Chosun University) ;
  • Park, Hyoung-Min (Department of Electrical Engineering, Chosun University) ;
  • Lee, Ju-Hyoung (Department of Electrical Engineering, Chosun University) ;
  • Jung, Byung-Ik (Department of Electrical Engineering, Chosun University) ;
  • Choi, Hyo-Sang (Department of Electrical Engineering, Chosun University)
  • 발행 : 2008.07.16
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초록

In this paper, we investigated the quenching characteristics of a superconducting fault current limiter (SFCL) with connection of $2{\times}3$ matrixes. This SFCL consists of the trigger part to apply magnetic field and the current-limiting part to limit the fault current. When the fault occurs, the magnetic field generated in the reactor connected in parallel was applied to the two superconducting units of the current-limiting part to reduce of inhomogeneous critical current behavior between the superconducting units. The quenching behavior of a superconducting unit in the trigger part was affected by the increase of turn numbers. This is because of the difference of current distribution between the inductance of the reactors and the resistance generated in the superconducting units in trigger part. We confirmed that the voltage differences between two superconducting units of the current-limiting part were decreased. This is because of the improvement of inhomogeneous critical current behavior between the superconducting units according to the increase of external magnetic field.

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