Analysis of DAS and ATWS Mitigation System in Nuclear Power Plant

Abstract:

As the backup systems of RPS (reactor protection system), Diverse Actuation System and ATWS( Anticipated transients without scram) mitigation system are diversely designed from RPS system so as to offer protection for the normal operation of nuclear power plant. Both of the systems bear the function of mitigating the anticipated transients without scram events. Being isolated from RPS system, the design of DAS and ATWS system meeting the requirement of diversity and influences of CCFs (common cause failure) are effectively prevented. This article mainly analyzed the structure and function of the two systems and the similarities and differences between them.

• Periodical: Applied Mechanics and Materials (Volumes 397-400)
• Pages: 1383-1386
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.397-400.1383
• Online since: September 2013
• Authors: Wan Ye Yao, Jin Bai
• Keywords: ATWS, Carbon-Coated Filament (CCF), Defense in Depth, Distribution Automation System (DAS)

References

[1] US NRC. DI&C-ISG-04 Interim staff guidance on highly-integrated control rooms-human factors issues(HICR-HF)[S]. (2007).

[2] Yu Jinbo: HEILONGJIANG SCIENCE AND TECHNOLOGY INFORMATION. Vol. 33 (2008), P. 53-54 (In Chinese).

[3] ANSI/IEEE std 603-1980, IEEE standard criteria for safety systems for Nuclear power Generating Stations.

[4] 900MW Pressurized water reactor nuclear power plant system and devices, Atomic Energy Press China (2005).

[5] Application of digital computers to nuclear reactor instrumentation and control. IEC 643(1979).

[6] Zhou Haixiang. Harbin Engineering University. Vol. 41 (2007),P. 41 (In Chinese).

[7] Yang Ye. Automation Instruments . Vol 2, (2012),P. 36-40 (In Chinese).