CIM-based GMD method for power system modeling

GMD is a WYSWYG (What You See is What You Get) method for power system modeling that makes the graph, model and database unified; the traditional GMD is based on the special and private information model and models cannot be exchanged or merged between different sources. With the adoption of standard IEC 61970, GMD should be based on the common information model (CIM) to enable development the "plug-in" applications and the interoperable systems. This method is called CIM-based GMD. This paper presents the basic principle of GMD and compares the traditional GMD with CIM-based GMD at first, then discusses the key technologies of CIM-based GMD. Finally, the paper points out that CIM-based GMD had better use the realtime database with orient-object, relational and hierarchy characteristics, form much more information automatically as possible and validate models with artificial intelligence knowledge to make sure that applications process models correctly.