Abstract: DC distribution networks offer advantages such as low line loss and high reliability, facilitating the integration of distributed power sources, energy storage, and DC loads. This paper proposes a novel multiplex converter topology for integrating distributed wind power into medium voltage DC distribution networks. By deriving and analyzing the system voltage/current harmonic characteristics through mathematical relationships, detailed control strategies for system power control, submodule voltage control, and active filter control are designed, and the submodule capacitance value is theoretically determined. A wind power connected to a medium voltage DC distribution network system model was built on the PSCAD/EMTDC simulation platform to simulate and verify the proposed control strategy. Simulation results show that this multiple converter can effectively improve the harmonic characteristics of the AC side of the system while reducing costs and occupying less space, resulting in high power quality on the AC side. This is significant for the consumption of distributed energy and improving the stability of the distribution network.