Functional validation of a real VSC HVDC control system in black start operation

Abstract

Voltage Source Converter (VSC) is a promising technology in High Voltage Direct Current (HVDC) transmission also due to its so called black start up capability. Black start capability consists in the ability of the HVDC system to restore back the power to an Alternating Current (AC) grid which experienced a black out without particular constraints on short-circuit power that should be ensured. Restoration process with VSC-HVDC presents some differences and new challenges with respect to traditional restoration strategies which have to be carefully investigated. In light of this need, the paper deals with a functional validation of a real VSC-HVDC control system in black start operating using a real time (RT) simulator and replicas of the INELFE HVDC control system.