适用于Living PSA的故障树求解方法

Fault Tree Analysis Strategy for Living PSA

Living PSA是当前核电厂的安全分析与评价中最热点的问题之一。Living PSA实现中最为根本而又关键的问题是“速度”问题。在现有PSA方法的基础上,根据Living PSA的特性,设计了一种适用于Living PSA的故障树求解方法,即独立模块排序求解法,并通过例子详细地说明了该方法实现过程。这个方法除了能快速地求解故障树以外,当故障树结构或故障树中部件可靠性模型或数据发生变化时能实时地求解故障树。

One of the most concerned issues in probabilistic safety assessment (PSA) of nuclear power plants is how to make the procedure be quick and convenient, e.g. with the so-called living PSA technique. A new programming strategy, i.e., the independent module ordering technique, has been presented to analyze rapidly fault trees deriving from complicated nuclear power systems, which is also useful for real time analysis of reliability model modification of the fault trees.