基于模糊有色Petri网的故障诊断方法  

Fault diagnosis method based on fuzzy-colored Petri net

作　　者：张丹[1] 佘维[1,2] 叶阳东[1,2] 

机构地区：[1]郑州大学信息工程学院,河南郑州450052 [2]北京交通大学轨道交通控制与安全国家重点实验室,北京100044

出　　处：《计算机工程与设计》2013年第11期3996-4001,共6页Computer Engineering and Design

基　　金：国家863高技术研究发展计划基金项目(2011AA110501);国家自然科学基金项目(61170223);国家重点实验室开放课题基金项目(RCS2009K003);河南省重点科技攻关计划基金项目(122102210004);湖南省科技攻关计划基金项目(2012FJ3092);河南省高校人文社会科学研究基金项目(2013-GH-384)

摘　　要：针对普通Petri网在诊断电网故障元件中存在的模型复杂、处理不确定性信号能力差的问题,提出了一种基于模糊有色Petri网的故障诊断方法。该方法将接收到的各类保护信号、断路器状态、信号的置信度以及可能的故障元件等因素都包含在托肯的复合颜色当中,通过一系列变迁触发规则,得到复合色为故障元件、置信度的托肯,从而诊断出故障元件及发生的置信度。仿真结果表明,该方法不仅模型简单、不受网络拓扑影响,而且解决了信号的不确定性问题。Aiming at the problems of model complexity and poor ability of dealing with uncertain information when the fault diagnosis of power system is analyzed using Petri net, a fault diagnosis method based on fuzzy-colored Petri net is presented. With this method, token＇ color contains protecting informations, state of circuit breakers, probability of signals and faulty components. Through a series of translation trigger rules, tokens about faulty component probability are gotten, which diagnoses the faulty component and its probability. The example of substation fault diagnosis shows that, this method has better adaptability and high accuracy, which is not be affected by the topology net, and the problem of uncertainty is solved.

关 键 词：故障诊断 模糊有色Petri网 不确定性 通用性 PETRI网 

分 类 号：TP306[自动化与计算机技术—计算机系统结构]