Progress in Superconductivity

The Korean Superconductivity Society (한국초전도학회)
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Study of Energy Margin and Operating Current Margin of KSTAR Cable-In-Conduit Conductor

KSTAR 초전도 자석의 운전 안정성에 대한 연구

  • Lee, H.J. (National Fusion Research Center) ;
  • Oh, Y.K. (National Fusion Research Center) ;
  • Kim, W.C. (National Fusion Research Center) ;
  • Park, S.H. (National Fusion Research Center) ;
  • Kim, H.C. (National Fusion Research Center) ;
  • Kim, K. (National Fusion Research Center)
  • Published : 2007.04.30
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Abstract

Since the margins for the minimum quench energy and for the operating current in the superconducting magnet determine the operating regime of the magnet, a thermal stability analysis for the KSTAR superconducting magnet system is performed using 1-D Gandalf code. The result shows that the minimum quench energy is about 500 mJ/cc and the operating current margin is about 70 %. These values are larger than those of the KSTAR design criteria and the KSTAR superconducting magnet system can be operated stably under various experimental environments.

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