Basic Research on the Topology of Remote Offshore Wind Farms Sending Through Multiterminal VSC-HVdc

This paper introduces a promising topology of remote offshore wind farms sending through multi-terminal VSC-HVdc link, considering the special offshore construction and operation conditions, and referring to some multi-terminal VSC-HVdc projects already in operation in China. Based on this topology, the control strategy is designed and start-up process is introduced. In the end, three terminals' case including two offshore terminals is simulated in PSCAD/EMTDC platform. Different operation modes are discussed in the simulation, and the simulation results show that this multi-terminal VSC-HVdc system shows good performance in steady and transient states and can be a good choice for the power transmission of remote adjacent wind farms.