Sequence-net Circuit model Extension for Common Information Model

It is necessary to extend the information model of the sequence-net circuit based on the Common Information Model (CIM) for realizing power system analysis and calculation based on the energy management system (EMS). First, based on the analysis of CIM grid description and traditional sequence-net circuit equivalent method, this paper reconstructs the equivalent method of the sequence-net circuit with the conducting equipment in CIM as the basic unit. Furthermore, the information model of the sequence-net circuit is designed by the Unified Modeling Language (UML). According to the relationship between the CIM and the sequence-net circuit, the mapping from the CIM to the sequence-net circuit is established. Finally, a module devoted to the sequence-net circuit was compiled, realizing the auto-generation of the sequence-net circuit from sequence-net information in CIM. The module applied in a platform of distribution power grid analysis based on CIM. Test results verified the correctness of the design, and the module operation efficiency lives up to the application requirement.