Performance Analysis of 6-Pulse HVDC-VSC using Deadbeat Controller in d-q Reference Frame under AC Fault Conditions

This paper proposes the implementation of deadbeat controller in synchronous reference frame for the control of HVDC-VSC. The performance of 6 pulse HVDC-VSC is analyzed and behavior of the quantities of HVDC-VSC system under AC faults is studied. The advantages of this controller over the conventional PI controller are fast tracking ability, precise, robust and fast dynamic response to the grid transient disturbances. The simulation test results are verified using MATLAB/SIMULINK platform under AC faults.