Bringing EMS Node-Breaker Model into Offline Planning Tools

Abstract

Power Systems Operations and Planning historically use different models. Online operations model is based upon node-breaker representation of the system whereas offline planning models are based upon bus-branch representation. Power industry is in need of a unified model that would eliminate the modeling differences to the extent possible between these models. The chapter describes development and testing of the tool allowing to use full topology model in traditionally planning tool. The chapter summarizes the challenges in reconciling the difference between operations and planning model, areas where more work is needed, and provides recommendations to help planning entities to gradually transition from traditional bus-branch planning model to node-breaker model. Finally, full topology and bus branch-model are tested against each other and system events.