Review on Research of High Voltage DC Transmission Technology Based on Voltage Source Converter

In order to enhance the application of high voltage DC transmission technology based on voltage source converter(VSC-HVDC) in power system and its development,the paper introduces structure and principle of VSC-HVDC and summarizes its basic control mode and technical characteristics.It points out status quo of the exploratory development of the technology,existing problems and research direction in the future.In accordance with characteristics of VSC-HVDC,the technology will be widely developed in wind power,power transmission and distribution.