Representation and Application of Fault Diagnosis Knowledge in Power Transmission Grids
Representation and Application of Fault Diagnosis Knowledge in Power Transmission Grids
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发表时间：
2012
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通讯作者：
Gao Zhanjun
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作者：
Gao Zhanjun
为了进一步提高故障诊断的效率和准确性，提出了一种通过知识的综合表示进行故障诊断的方案。通过对网络拓扑结构和各种保护知识的表示，为诊断算法提供了足够的故障诊断知识。这样，故障诊断程序可以利用各种信息对故障元件做出准确的判断，知识的优化可以使故障诊断方法变得简单。在知识的基础上，使用PETRI网进行逻辑推理。仿真结果表明，该方法能够满足实际应用的要求，可作为智能电网自愈过程的接口。
For further improvements on the efficiency and accuracy of the fault diagnosis,this paper proposed a scheme in which fault diagnosis was done through comprehensive representations of knowledge.Sufficient fault diagnosis knowledge was provided to the diagnosis algorithm through the representation of network topology and the various protections knowledge.In this way,the fault diagnosis program can make an accurate judgment on faulty components with all kinds of information,and the optimization of knowledge can make the fault diagnosis method simple.The Petri net was used to do the logical inference on the base of knowledge,which can judge the faulty components accurately even with mal-operations of protective relays and circuit breakers.Simulation results show that the proposed method can meet the requirements of practical applications,and the program can be applied as the interface of the self-healing process in smart grids.