Failure analysis of relay protection in digital substation based on fault tree
Failure analysis of relay protection in digital substation based on fault tree
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DOI：
10.1109/ciced.2012.6508655
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Qu Zhangjun;Wang Yini
中科院分区：
文献类型：
--
作者：
Qu Zhangjun;Wang Yini
本文建立了数字化变电站继电保护的故障树模型，故障树分析侧重于描述系统故障的各种可能原因和组合，局限于故障传播的动态描述和分析，同时引入着色模糊Petri网对系统的结构特征和行为进行动态描述和分析，对系统进行分类，简化系统故障树模型。从而减少了故障树的大小，使各因素的分布关系更加清晰。采用FCPN模型推理算法技术对数字化变电站保护系统进行故障分析，得到各组成因素的置信度值，帮助确定主要因素。
Fault tree is modeled for relay protection in digital substation in this paper, fault tree analysis is focused on the description of a variety of possible causes and combinations of system failure, which limits to dynamic description and analysis of fault propagation, at the same time, coloring fuzzy Petri nets is introduced to dynamically describe and analyze the system's structural characteristics and behavior, to classify, simplify the system fault tree model, thereby reducing the size of the fault tree, making the factors spread relationship clearer. FCPN model inference algorithm technology is also used for digital substation protection system failure analysis, confidence value of the component factors is obtained to help determine the main factors.