A Case Study of SIL Analysis for Single Station Controller in Nuclear Power Plant Based on IEC 61508

IEC 61508에 기반한 원자력 발전소용 안전 등급 제어기의 SIL 분석에 대한 사례연구

  • Received : 2016.08.24
  • Accepted : 2016.09.16
  • Published : 2016.09.25

Abstract

Purpose: It is not easy to suggest a quantitative data related to safety analysis. The objective of this paper is to propose a method of Safety Integrity Level (SIL) analysis and to suggest a SIL analysis result for single station controller in nuclear power plant based on IEC 61508. Methods: The Failure Modes and Effects Diagnostic Analysis (FMEDA) and average probability of failure on demand (PFD) are used for SIL assessment. Results: A SIL of single station controller is evaluated 4 by a reliability analysis results and PFD. Conclusion: A SIL analysis method and result for single station controller based on IEC 61508 are proposed in this paper. It can applicable for a manufacturer data in safety-related system.

Keywords

References

  1. Song, T. Y. and Yung, B. Y. (2015). "A Study on the Strategy Assessment in Nuclear Power Plants". The Korea Society for Energy Engineering, pp. 140.
  2. Yu, G. J. and Chae, S. G. (1987). "Probabilistic Safety Analysis Method". Nuclear Engineering and Technology, Vol. 19, No. 2, pp. 137-148.
  3. Jeong, I. S., Kim, W. S. and Lee, C. W. (1999). "Nuclear Power Plant Lifetime and Periodic Safety Management". The Korean Society of Mechanical Engineers, Vol. 2, No. 2, pp. 43-48.
  4. IEC 61508 (2010). "Functional Safety of Electrical/Electronic/Programmable Electronic Safety-related System - Part 6: Guidelines on the application of IEC 61508-2 and IEC 61508-3".
  5. Kim, S. K. and Kim, Y. S. (2012). "A Study on FMEDA Process for SIL Certification : A Case Study of a Flame Scanner". IE interfaces, Vol. 25, No. 4, pp. 422-430. https://doi.org/10.7232/IEIF.2012.25.4.422
  6. Kim, B. C. and Kim, Y. J. (2012). "Case Study on the Assessment of SIL Using FMEDA". IE Interfaces, Vol. 25, No. 4, pp. 376-381. https://doi.org/10.7232/IEIF.2012.25.4.376
  7. Seo, S. K. (2012). "On Reliability Performance of Safety Instrumented Systems with Common Cause Failures in IEC 61508 Standard". IE interfaces, Vol. 25, No. 4, pp. 405-415. https://doi.org/10.7232/IEIF.2012.25.4.405