Ontology Matching Approach to the Harmonization of CIM and IEC 61850 Standards

The harmonization of CIM (IEC 61968/61970) and IEC 61850 standards is a major issue in the interoperability between smart grid devices, systems and applications. This paper describes how Ontology Matching methods, mainly developed for the Semantic Web, can be employed to solve the problems or mismatches that appear in this harmonization. The paper also includes a description of the ESODAT software tool, which processes OWL alignments to translate configuration files from one of the standards (CIM or IEC 61850) to the other one. The tests carried out with this tool proved its ability to solve mismatches that appear in the state of the art. Besides, the solution proposed in this work is based on open source resources and does not require any modification of the original standards.