A simulator study of recovery of HVDC links following AC system faults

This paper presents the simulator study of a two-terminal HVDC system. The various AC system faults to which the study system is subjected are a) remote-three-phase ground fault, b)single-phase-ground fault and c)threephase-ground faults. These faults are applied both at the rectifiey and inverter ends. The results of the simulator study are presented to demonstrate the controller performance in the recovery of HVDC link following AC system faults.