Recent developments in optimal power flow

Summary form only given. The optimal power flow has been a key part of power system control since the early 1970s. Initial implementations of OPF were oriented to the solution of the economic dispatch with transmission constraints. Other implementations included modeling of the power system network including real power and reactive power constraints, and the modeling of reserve constraints. Later implementations included the modeling of security constraints and the introduction of preventive, corrective, and preventive corrective modes of operation. Recent developments include the use of OPF to calculate locational marginal prices for the new electricity markets, and the auctioning of financial transmission rights with both obligations, and options. Other recent implementations include the use of OPF techniques to manage congestion across the seams of neighboring RTOs. This panel session includes a discussion of these recent developments.