Research Of The Ontology-based Validation Method For IEC 61968 Semantic Information Model

As the information standardization of power system gradually develops, the utilities are devoted to constructing the enterprise information integration architecture according to IEC 61968 standards based on the enterprise service bus. However, in the implementation process, the consistency of information model and message specification has not been well implemented. The lack of information synchronization between the system vendors and the constitutors of model and message specification, could easily cause the differences among information models, and impede the information sharing and interoperation among the applications of power system. The main reason may technologically refer to the lack of a validation mechanism, which checking the consistency constraints of the information model and message specification on the message bus. In this paper, one efficient validation mechanism has been proposed with the target to solve the problem of semantic inconsistency, meanwhile achieving the semantics of enterprise integration bus standardization. The mechanism also includes the ontology-based validation method for unified information model and message validation based on XML Schema.Using the semantic modeling and logical reasoning capability of the OWL ontology language, the model validation could realize the comparison of metadata. Considering the practical needs, CIM-based and Profile-based validation modes also have been proposed. These two modes not only detect the conflicts between different CIM versions, but also complete the inspections for specific business rules. The message validation establishes the consistency rules of the data model through analyzing the mapping relationship between XML and XML schema.Finally, according to the above methods, a set of model and message validation tool (M2VT) has been developed and deployed on the message bus through Web Service, cooperating to achieve the online validation of consistency between the model and message. The efficiency and practicality usefulness of this tool have been verified through the application testing. As the information model and message exchange is the vital basis of the information integration for the smart distribution network, the breakthroughs of the validation technology will greatly promote the information integration technology.