Standardization of input and output data of SCADA/EMS topology processor according to the common information model (CIM).

Abstract

Introduction. The topology processor is one of the main components of the SCADA/EMS operating core. The evolution of SCADA/EMS requires data standardization for information exchange between the topology processor and application tasks, as the functions of the topology processor are defined by the requirements of industry regulatory and technical documents. Goal. The outlines for the CIM standardization of the topology processor input and output data that ensure interoperability of software components. Materials and methods. This study is based on an   analysis of the functional architecture of SCADA/EMS, standards in the field of electric power grid management, and the Common Information Model (CIM) methodology. Results and discussion. Topology analysis tasks are considered: models offline building, model updating after switching operations, switching state recognition, topological interlocks, topological tracing, and post-failure power supply restoration. CIM classes are proposed for input and output data exchange between topology processor and applied components. It is shown that CIM provides a necessary "bridge" between the power engineering language and mathematics (graph theory). Conclusion. CIM standardization of input and output data for the topology processor allows the latter to be developed separately from application modules and delivered ready-to-use for the variety of control systems. This approach can be spread on the other SCADA/EMS software components to ensure their seamless imbedding into integrated control systems.