论文标题
ETMA：一种新的用于事件树分析的软件，并应用于功能保护
ETMA: A New Software for Event Tree Analysis with Application to Power Protection
论文作者
论文摘要
事件树（ET）分析是一种在系统设计阶段进行决策的广泛使用的远期扣除安全分析技术。现有的ET工具通常提供图形用户界面（GUI），以便用户手动绘制由节点和分支组成的系统级别ET图，描述了所有可能的成功和故障场景。但是，这些工具不包括一些重要的ET分析步骤，例如，自动生成和减少完整的系统和图。在本文中，我们提出了一种新事件树建模和分析（ETMA）工具，以促进用户对给定系统进行完整的ET分析。 ETMA的一些关键特征包括：（i）自动构建现实世界系统的完整ET模型； （ii）缺失/减少不必要的节点和分支； （iii）ET路径的分区； （iv）某个事件发生的概率分析。出于说明目的，我们利用我们的ETMA工具来对电网传输线中的保护断层跳闸电路进行ET分析。我们还将ETMA结果与Isograph进行了比较，Isograph是ET分析的众所周知的商业工具。
Event Tree (ET) analysis is a widely used forward deductive safety analysis technique for decision-making at a system design stage. Existing ET tools usually provide Graphical Users Interfaces (GUI) for users to manually draw system-level ET diagrams, which consist of nodes and branches, describing all possible success and failure scenarios. However, these tools do not include some important ET analysis steps, e.g., the automatic generation and reduction of a complete system ET diagram. In this paper, we present a new Event Trees Modeling and Analysis (ETMA) tool to facilitate users to conduct a complete ET analysis of a given system. Some key features of ETMA include: (i) automatic construction of a complete ET model of real-world systems; (ii) deletion/reduction of unnecessary ET nodes and branches; (iii) partitioning of ET paths; and (iv) probabilistic analysis of the occurrence of a certain event. For illustration purposes, we utilize our ETMA tool to conduct the ET analysis of a protective fault trip circuit in power grid transmission lines. We also compared the ETMA results with Isograph, which is a well-known commercial tool for ET analysis.
