核电站停堆保护系统安全性仿真研究

Safety Simulation on Reactor Protection System of Nuclear Power Stations

核电站的安全可靠是其运行的第一要素,故障树分析是核电站概率安全评价的重要方法。引用蒙特卡罗方法对故障树进行定理分析建模,给出了故障树仿真程序框图,编写了仿真程序,做成了可靠性评估软件。通过实例指出各底事件对整个系统的重要度,对核电站的设计、维修和改造具有指导意义。

Safety and reliability are always the first essential factors for operation of nuclear power stations.Fault tree analysis is an important way for the probabilistic safety assessment.Theoretical analysis and modeling on the fault tree were performed using Monte Carlo method,during which simulation flow charts and problems respectively presented and written,while reliability assessment software worked out.Based on actual practices,the importance degree of each bottom event on the whole system is described,which may serve as a reference for future design,maintenance and retrofit of nuclear power stations.