DCOPF-Based LMP Simulation: Algorithm, Comparison With ACOPF, and Sensitivity

摘要: The locational marginal pricing (LMP) methodology has become the dominant approach in power markets. Moreover, dc optimal flow (DCOPF) model been applied industry to calculate prices (LMPs), especially market simulation and planning owing its robustness speed. In this paper, first, an iterative DCOPF-based algorithm is presented with fictitious nodal demand (FND) LMP. three features: employed address nonlinear loss; FND proposed eliminate large mismatch at reference bus if not applied; offset of system loss energy balance equation proved be necessary because net injection multiplied by delivery factors creates doubled loss. Second, compared ACOPF for accuracy LMP results various load levels using PJM 5-bus system. It clearly shown that a good estimate calculated from outperforms lossless DCOPF algorithm. Third, analyze sensitivity respect load. infinite or step change also discussed.