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基于CEP的电力系统故障诊断方法

发布时间:2018-04-16 23:04  文章来源:笔耕文化传播

  本文选题:电力系统 + 故障诊断 ; 参考:《南京大学》2014年硕士论文


【摘要】:随着电力系统规模的扩大和互联程度的提高,当电力系统发生故障时,故障的传播范围将更大,其造成的危害也更大。尤其发生复杂故障时,电力系统的信息系统将接收到大量的故障数据,给故障诊断造成了极大的困难。故加强电力系统故障诊断的研究,以指导调度人员应对故障,对电力系统的安全稳定具有较强的现实意义。本文引入复杂事件处理技术来解决现有电力系统故障信息处理中存在的数据过剩而信息不足的问题。从电力系统间隔层故障数据、变电主站故障信息和调度中心诊断结论的本质区分出发,根据现有电力系统故障信息的处理层次特点,提出了基于复杂事件处理技术的电力系统故障诊断信息处理的分层处理模型。在此基础上,采用复杂事件处理技术中主流的事件处理语言PAPIDE-EPL建立了电力系统故障诊断的事件抽象层次及各层事件之间的聚合规则。基于复杂事件处理技术的电力系统故障诊断方法符合故障信息处理的本质,其从数据层、信息层和知识层3个层面逐步处理故障数据,降低了故障事件模式匹配规则的难度,加强了匹配规则的适应性,改善了故障诊断过程的黑箱性。针对局部电力系统的算例,文本采用复杂事件处理平台StreamInsight建立了电力系统故障诊断系统。算例测试结果表明本文提出的基于复杂事件处理技术的电力系统故障诊断模型合理,故障诊断诊断方法有效,具有较好的应用前景。
[Abstract]:With the expansion of power system scale and the improvement of interconnection degree, when the power system fails, the range of fault propagation will be larger, and the harm caused by it will also be greater.Especially when complex faults occur, the power system information system will receive a large number of fault data, causing great difficulties in fault diagnosis.Therefore, it is of great practical significance to strengthen the research of power system fault diagnosis to guide the dispatcher to deal with the fault and to ensure the safety and stability of the power system.In this paper, complex event processing technology is introduced to solve the problem of data surplus and insufficient information in existing power system fault information processing.Based on the essential distinction between the fault data of power system interval layer, the fault information of substation main station and the diagnosis conclusion of dispatching center, according to the characteristics of the existing power system fault information processing hierarchy,A hierarchical processing model for fault diagnosis information processing in power system based on complex event processing technology is proposed.On the basis of this, the abstract event hierarchy of power system fault diagnosis and the aggregation rules among the events in the power system fault diagnosis are established by using the event processing language PAPIDE-EPL, which is the mainstream of complex event processing technology.The fault diagnosis method of power system based on complex event processing technology accords with the essence of fault information processing. It processes fault data step by step from three levels: data layer, information layer and knowledge layer, which reduces the difficulty of fault event pattern matching rule.The adaptability of matching rules is enhanced and the black box of fault diagnosis process is improved.In this paper, the fault diagnosis system of local power system is established by using complex event processing platform StreamInsight.The test results show that the proposed fault diagnosis model based on complex event processing technology is reasonable, and the fault diagnosis method is effective and has a good application prospect.
【学位授予单位】:南京大学
【学位级别】:硕士
【学位授予年份】:2014
【分类号】:TM73

【参考文献】

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