Knowledge base modeling method for intelligent substation operation and maintenance system based on semantic network

Abstract

The invention discloses a knowledge base modeling method for an intelligent substation operation and maintenance system based on a semantic network. The method includes the steps that, a theoretical basis for modeling substation operation and maintenance system based on the semantic network is established; the concepts and ideas of ontology and the semantic network are used for reference, according to the requirement of an SCL in the IEC61850-6 standard for a object model, basic structures and logical frames among each first device, a corresponding secondary device and a corresponding communication device are analyzed, and a model foundation of semantic-network-based substation operation and maintenance expert system modeling is built; through the combination of the IEC61850-6 standard and the characteristics of the semantic network, a reasonable operation and maintenance system knowledge base model is designed in the three aspects of intelligent substation device configuration, IED configuration and communication configuration; finally, based on a CLIPS platform, the related model is verified. The method has the advantages that the use of the semantic network makes the structure of the knowledge base more systematic, the logicality and consistency of different concepts of the knowledge base are improved. and the purpose of improving the expansibility of the systematic knowledge base and the rule reuse rate of a rule base is achieved.

Description

technical field [0001] The invention relates to a knowledge base modeling method of a semantic web-based intelligent substation operation and maintenance system. Background technique [0002] With the advancement of the State Grid Corporation's smart grid strategy, by the end of 2015, about 5,182 smart substations had been put into operation. The secondary systems of the smart substation are all encapsulated in the configuration description file (Substation Configuration Description, SCD), which brings great difficulties to the operation and maintenance of the substation. As early as 2011 and 2012, some scholars proposed to use the expert system method to assist the operation and maintenance of smart substations, guide and help operators to quickly make accurate judgments on accidents and abnormalities, thereby improving the operation management level and reliability of substations . Different from traditional substations, the system architecture of smart substations has u...

AI Technical Summary

Problems solved by technology

[0004] In reality, the equipment information of smart substations also has the problem of a large number of equipment and complex correlations, and has high requirements for the scalability of the model

If the method of directly modeling various types of equipment is used, it will inevitably lead to confusion in the knowledge structure of the knowledge base and unclear similarities between similar equipment types; each rule in the rule base is only for a specific type of equipment, which is not universal and too complicated.

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