IE interfaces (산업공학)

Korean Institute of Industrial Engineers (대한산업공학회)
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Safety Assessment for the Design of Digital Reactor Protection System of Nuclear Power Plant

원자력 발전소 디지털 원자로 보호시스템의 설계에 대한 안전성 평가

  • Kong, Myung-Bock (Department of Industrial Engineering, University of Ulsan) ;
  • Lee, Sang-Yong (Nuclear Power Division Head Office, SAMCHANG ENTERPRISE CO., LTD.)
  • 공명복 (울산대학교 산업경영공학부) ;
  • 이상용 (삼창기업(주) 원자력사업본부)
  • Received : 2009.09.04
  • Accepted : 2010.01.21
  • Published : 2010.03.01
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Abstract

Digital reactor protection system which consists of many identical modules, is fault- tolerant to provide high safety. The modules themselves including DSP(digital signal processing) card are also fault-tolerant in nature. This paper assesses the safety for being-designed digital reactor protection system of 2-out-of-4 G structure with lockout. Some interesting design alternatives are compared. Fault tree analysis for assessing system safety is performed by Relex software. The selected reactor protection system fully satisfies EPRIURD stipulation of mean failure time of 50 years.

Keywords

References

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