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核电厂地震风险评价应该采用合适的数据处理方法和分析技巧。自主开发地震量化软件,采用蒙特卡洛抽样方法,对地震发生频率及设备失效条件概率进行模拟,并结合地震事故序列对电厂地震风险水平进行评价。该方法弥补了传统概率安全评价(PSA)建模软件在处理地震风险评价方面的不足。与国外同类型软件相比,在不确定性方法的处理上更合理,功能上更完善。
Earthquake risk assessment of NPPs should adopt appropriate data processing methods and analytical techniques. The seismic quantitative software was developed independently. The Monte Carlo sampling method was used to simulate the frequency of occurrence of earthquakes and the probabilities of equipment failure conditions. The seismic risk level of power plants was evaluated with the sequence of earthquake accidents. This method makes up for the shortcomings of traditional probabilistic safety assessment (PSA) modeling software in dealing with seismic risk assessment. Compared with the same type of software in foreign countries, the method of uncertainty is more reasonable and the function is more perfect.