一种基于FPN的电力系统故障诊断方法  

A Fault Diagnosis Method of Power System Using FPN

作　　者：张燕[1,2] 佘维[3] 李平[3,4] 

机构地区：[1]长沙医学院计算机系,长沙410000 [2]湖南大学,长沙410000 [3]郑州大学信息工程学院,郑州450052 [4]信息工程大学电子技术学院,郑州450004

出　　处：《计算机测量与控制》2012年第9期2341-2344,共4页Computer Measurement &Control

基　　金：湖南省科技计划项目(2011SK3116);湖南省教育厅科学研究课题(10C0445;09C1257)

摘　　要：针对变电站故障推理过程中存在的不确定性问题,文章提出一种变电站故障诊断方法,将业务规则模糊化,并映射到模糊Petri网,利用Petri网本身所具有的异步性、并发性、并行性等特点,结合实例,对变电站故障信号的分析过程进行建模;通过将特定业务规则模糊化,使其可以对变电站设备故障中不具备完整现象描述的情况进行处理,适用于变电站设备单纯故障和带有关联告警信号的组合故障的诊断过程,可以有效降低系统对故障漏报和误报的概率。For the ＂uncertainty＂ problems existing in fault reasoning process for substation, this paper presents a substation＇s fault rea- soning mechanism. It fuzzes the business rules and makes them mapped into Fuzzy Petri nets, because Fuzzy Petri nets are a promising tool for modeling the analysis process of substation fault signals that are characterized as being asynchronous, concurrent, parallel and so on. This paper will show the reasoning process with concrete examples of substation＇s faults. Through fuzzing the specific business rules, this mechanism can handle the case having not complete phenomenon description of substation＇s equipment faults, and apply to diagnosis process of pure fault and combined fault with associated alarm signals. What is more, it can reduce the probability of fault＇s missing alarm and false alarm effectively.

关 键 词：不确定性 模糊PETRI网 模糊规则 单纯故障 组合故障 

分 类 号：TM76[电气工程—电力系统及自动化]