HVDC converter control for fast power recovery after AC system fault

This paper describes an elementary control system that enhances AC system stabilization by HVDC. This control system focuses on HVDC power recovery after the AC system fault. The control function has been developed through digital simulation. Finally, a prototype controller with this control function has been evaluated by simulator tests. The digital simulation results and the simulator test results were consistent and the control function was verified to be applicable to an actual HVDC project.