The present application relates to the technical field of
electric power engineering, and discloses a
wind power heterogeneous DC networking sending-out topology and a control method and device thereof, comprising: a DC sending-out
system is configured for each period of wind farm, wherein the sending end of each period of DC sending-out
system is respectively connected to a sending end AC
bus, the receiving end of each period of DC sending-out
system is respectively connected to a receiving end AC
bus, and weak
electrical connection is realized between each sending end AC
bus through an AC
tie line; the first period of DC sending-out system adopts a flexible
DC converter topology, and other periods of sending-out system can adopt a contained
diode DC sending-out topology. The first period of system provides a power back sending channel and a
wind power sending-out channel under a near-zero power
scenario for subsequent periods of heterogeneous DC topology. The present application meets the demand of
offshore wind power development in pieces, promotes the
engineering landing of
diode DC lightweight and efficient sending-out technology, solves the operation problems of
black start, no wind / weak wind and the like, and reduces the construction cost of
wind power DC sending-out system.