Analysis of a Series-Parallel-Connected Type DC Power Flow Controller in Multiterminal Grids

In multiterminal or meshed dc grids, power flow of each line cannot be fully controlled via converter stations. The dc power flow controller (DCPFC) is, therefore, used to solve such problem. This article presents a series-parallel-connected type DCPFC for multiterminal or meshed dc grids. The topology consists of three functional blocks based on power electronics circuits: Parallel tapping block,...