核电站仪控系统故障风险分析方法

Fault Risk Analysis Method of Instrument and Control System in Nuclear Power Plant

为满足核电站仪控系统故障定位快速准确、风险分析可靠全面的需求,提出了一种基于风险自动分析模型的仪控系统故障风险分析方法。首先,将传统的系统内嵌式自诊断分析、基于故障模式与影响分析(FMEA)、逻辑信号自动化分析技术相融合构建了风险自动分析模型;然后基于风险自动分析模型开发了故障风险自动化分析融合平台;最后通过实例分析验证所提方法的有效性。实践表明该方法可有效提高故障精准定位效率,减少故障风险分析时间,降低人因失误风险。

In order to meet the requirements of rapid accurate fault location and comprehensive reliable risk analysis of instrument and control system in nuclear power plant,a fault risk analysis method of instrument and control system based on automatic analysis model is proposed.Firstly,the traditional system embedded self-diagnostic analysis,FMEA and automatic analysis of logic signals are integrated to build an automatic risk analysis model.Then,an automatic analysis fusion platform for fault risk is developed based on the automatic risk analysis model.Finally,the effectiveness of the proposed method is verified by example analysis.Practice shows that this method can effectively improve the efficiency of accurate fault location,reduce the fault risk analysis time,and reduce the risk of human error.