Multi-site network model management

Exchange of detailed network model data with neighboring utilities is a necessity for effective use of network applications such as state estimator and contingency analysis. Although a detailed node/breaker model is necessary to support these applications, no standard has existed for exchange of such data. Consequently different organizations have developed different methods of exchanging the necessary data. The work of the CIM XML interoperabitity testing has helped to establish a method for exchange of node/breaker models. The standard continues to be refined, but is already being effectively used in the industry. In recent years the introduction of ISOs and RTOs has required the construction of large scale, detailed network models from data received from member organizations. Construction and maintenance of these large models has been challenging in part because network models received from member organizations are usually not completely synchronized. In an effort to improve synchronization it is 7 often necessary to also send data from the ISO/RTO to the member organizations. Although use of the CIM XML format for exchange of data has been beneficial, significant challenges are still being addressed. Different organizations use different methods to uniquely identify the network equipment and other data objects in their network models. Globally unique identifiers are not generally agreed upon or available. While moving to the use of globally unique identifiers, it is necessary to find interim solutions to the problem of unique identification. change the data. Protocols are also necessary for data consumers such as the ISO/RTO and other member organizations to report data issues to the data owner. These issues around the exchange and coordination of network model data across multiple sites will be explored along with long term and interim approaches. In the ISO/RTO environment, data ownership must also be managed, so that only the owner of the data is allowed to change the data. Protocols are also necessary for data consumers such as the ISO/RTO and other member organizations to report data issues to the data owner. These issues around the exchange and coordination of network model data across multiple sites will be explored along with long term and interim approaches.