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Practical Alarm Suppression Rules and their Implementation for Nuclear Power Plants

원자력발전소의 출력감발모드를 위한 경보축약 규칙

  • Received : 2011.08.26
  • Accepted : 2011.09.23
  • Published : 2011.10.01

Abstract

It is necessary to adopt some logical techniques and methods of alarm processing for a large complex plant such as nuclear power plants in order to present the occurred alarm messages properly and concisely. Among such alarm processing techniques, the alarm suppressing function is a strong tool to avoid alarm flooding during the sudden transients of plant output power such as turbine trips, reactor trips and other incidents. Unless any suppression or representation technologies are used in an alarm message listing system, it cannot provide quick assistance to plant operators or supervisors during plant upsets because too many alarm messages are presented in an alarm list window. This paper presents the key suppression methods and analysis processes developed for implementing a suppressed alarm message listing function of an integrated alarm system called LogACTs which has been applied to a CANDU nuclear power plant. A simulation testing of the suppressing function conducted with the real plant alarm message list data has demonstrated an effective performance of the developed logics with the high suppression rate.

Acknowledgement

Supported by : 충남대학교

References

  1. William S. Brown, John M. O'Hara, and James C. Higgins, Advanced Alarm Systems: Revision of Guidance and Its Technical Basis, NUREG/CR-6684, Nuclear Regulatory Commission, Washington DC, 2000.
  2. E.C. Davey and M.P. Feher, "Development of Improvements to CANDU Computerized Annunciation," IEEE Sixth Conference on Human Factors and Power Plants Orlando, Florida, June, 1997.
  3. L.R. Lupton, et al., "Improving CANDU Annunciation - Current R&D and Future Directions," Proceedings of the IAEA Specialists' Meeting on Advanced Information Methods and Artificial Intelligence in Nuclear Power Plant Control Rooms, Halden (Norway), P133-144, Sept. 1994.
  4. Inn Seok Kim, "Computerized Systems for On-line Management of Failures: a State-of-the-art Discussion of Alarm Systems and Diagnostic Systems applied in the Nuclear Industry," Reliability Engineering and System Safety 44, p279-295, 1994. https://doi.org/10.1016/0951-8320(94)90019-1
  5. Jung-Woon Lee, et al., "Computer-based Alarm Processing and Presentation Methods in Nuclear Power Plants," ICCESSE 2010: International Conference on Computer, Electrical, Systems, Science and Engineering, Tokyo, Japan, May 26-28, 2010.
  6. Jung-Taek Kim, et al., "Development of advanced I&C in nuclear power plants: ADIOS and ASICS", Nuclear Engineering and Design, 207, pp.105-119, 2001. https://doi.org/10.1016/S0029-5493(00)00430-1
  7. J. T. Kim, et al., "Logic Alarm Root Cause Tracking System(LogACTs)," JES/ESK Joint Symposium 2008, Tokyo, Japan, June 15, 2008.
  8. Kenji Mashio, "Dynamic Alarm Prioritization Management Technology of Mistubishi PWR," IAEA Workshop on Dynamic Alarm Priority Management Technology of NPP, Daya Bay, China, Oct 8-12, 2007.
  9. EEMUA Publication No. 191, Edition 2, Alarm Systems: A Guide to Design, Management, and Procurement, Engineering, Equipment and Materials Users Association, 2007.