A subarea-level transaction simulation framework supporting parallel pathsand energy tagging

A methodology is proposed to improve transaction modeling for electrical sy stems, and associated expense estimation, by applying a transmission constr aint data reduction technique and a novel transmission model formulation, A linear programming model is described, which represents parallel flows and manages transaction tagging and accounting to improve model optimality and treatment of nonlinear phenomena, The modeling framework is a large-scale approach that provides screening results to initiate detailed small-scale i nvestigations, The methodology also supplements the flow-based transmission modeling philosophy currently under consideration by the North American El ectric Reliability Council (NERC), The proposed method extends the NERC uti lity-level model to a subarea-level network model to improve overall transm ission modeling detail and performance. In addition, the model merges an op timizing technique with the parallel path and energy tagging features into one homogeneous model.