Research on substation knowledge semantic exchange model based on ontology

IEC 61850 adopts object-oriented modeling techniques to model business functions of the substation, and defines substation configuration description object model by Substation Configuration description Language (SCL). SCL which is based on XML Schema cannot description the knowledge semantic and achieve substation knowledge exchanging of substation automation system. in this article, knowledge semantic of substation was analyzed and modeled based on ontology technology, including the relationships and constrains of substation knowledge semantic. By extending the label definition of SCL, the semantic exchange model is proposed and description ability of SCL is improved.