Power Flow Optimization Strategy for Regional Grid Transmission Corridors with Embedded HVDC

This paper conducts a detailed simulation analysis on the feasibility, effectiveness and necessity of Embedded HVDC participating in power flow optimization regulation through PSCAD/EMTDC, and establishes an optimization model framework considering the coordinated dispatching of AC and DC power flows and the global optimization calculation of transmission corridors. Then optimization objective functions corresponding to different operating conditions are proposed to release the potential transfer capability of the transmission corridors. Moreover, the effectiveness of this optimization strategy is verified by simulations on an IEEE 39-bus system and a practical large-scale power grid.