Delivery of the Nan'ao multi-terminal VSC-HVDC system

This paper provides an overview of the development and technology challenges of the world's first multi-terminal VSC-HVDC link that was successfully commissioned on 25th of December 2013. The link consists of three converter stations at three different geographic locations, connected by a combination of subsea DC cable, land DC cable and overhead DC line. A selection of the physical test results are provided including staged short-circuits.