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Safety Assessment for the Design of Digital Reactor Protection System of Nuclear Power Plant  

Kong, Myung-Bock (Department of Industrial Engineering, University of Ulsan)
Lee, Sang-Yong (Nuclear Power Division Head Office, SAMCHANG ENTERPRISE CO., LTD.)
Publication Information
IE interfaces / v.23, no.1, 2010 , pp. 68-77 More about this Journal
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
reactor protection system; DSP; 2-out-of-4 G structure with lockout; fault tree; safety assessment;
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Times Cited By KSCI : 1  (Citation Analysis)
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