CIM Compliant Power System Model Exchange for Indian Power Grid Control Centers

CIM is widely adopted by many power utilities since it offers interoperability through standard information models. This paper discusses the CIM based modeling aspects for representing a regional power system network of Indian power grid in CIM format. Two control center applications, namely network model exchange and state estimation are considered. The CIM based modeling approach addresses three significant problems faced by utilities such as 1) seamless exchange of network models, 2) representation of boundary elements which are typically modeled in the networks of both the neighboring control areas, and 3) exchange of state variables obtained from state estimation application. The model authority sets (MAS) are defined for handling of boundary elements that occur at the regional network boundaries, wherein the globally unique reference IDs are allotted for unique identification of power system resources. The MAS approach supports easy merging of multiple regional CIM network models into a national CIM network model. The CIM profiles for network model exchange and state estimation applications are defined. Consequently, CIM/RDF/XML message payloads for the applications are generated for western region 400 kV network of Indian power grid.