植物保护系统综合响应时间评价方法的开发

C. Lee, Seungryong Han, Jae Whal Shin, J. Yun
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引用次数: 0

摘要

核电厂的安全分析不仅确定了测量或计算变量的分析限值,而且确定了达到分析限值后完成保护行动所需的分析响应时间。如果满足这两个约束条件,在预期的操作事故和假定的事故中,为保持用于防止不受控制的放射性释放的物理屏障的完整性而选择的安全限值将不会超过。已积极开发设定值确定方法,以确保在工艺条件达到分析极限之前启动保护措施。然而,关于植物保护系统(PPS)的分析响应时间,一种考虑整个设计过程的综合评价方法尚未得到系统的研究。为了保证核电站的安全,本文提出了一种系统的、综合的响应时间评价方法,包括安全分析、系统设计、响应时间分析和响应时间测试。该方法适用于国内先进动力反应堆1400核电站的PPS。本文给出了定量评价结果。应用该方法的评价结果表明,PPS完全满足分析响应时间的要求。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of integrated response time evaluation methodology for the plant protection system
Safety analysis for a nuclear power plant establishes not only an analytical limit in terms of a measured or calculated variable but also an analytical response time required to complete protective action after the analytical limit is reached. If the two constraints are met, the safety limit selected to maintain the integrity of physical barriers used for preventing uncontrolled radioactivity release will not be exceeded during anticipated operational occurrences and postulated accidents. Setpoint determination methodologies have been actively developed to ensure that protective action is initiated before the process conditions reach the analytical limit. However, regarding the analytical response time for the plant protection system (PPS), an integrated evaluation methodology considering the whole design process has not been systematically studied. In order to assure the safety of nuclear power plants, this paper proposes a systematic and integrated response time evaluation methodology that covers safety analyses, system designs, response time analyses, and response time tests. This methodology is applied to the PPS for the advanced power reactor 1400 nuclear power plant in Korea. The quantitative evaluation results are provided herein. The evaluation results using the proposed methodology demonstrate that the PPS completely satisfies the requirement of the analytical response time.
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