A DC drop optimization method for multiple DC-fed receiving grids based on the effect of DC blocking on AC system

Aiming at multiple DC(Direct current) feeds into the recipient grid, based on the impact of DC blocking on the AC(alternating current) system, a new DC landing point optimization selection method was studied. The impact of power transfer on the voltage stability of the AC system after DC blocking was considered, as well as the impact on the utilization efficiency of the AC channel. Two factors were considered, and an evaluation method for the new DC landing point scheme was constructed, which was applied in the actual power grid planning scheme.