Modeling and simulation of VSC-HVDC with current deadbeat control

In this paper, a double-loop control scheme is proposed for the VSC-HVDC transmission system connecting two AC grids. A conventional PI controller is used in the outer loop and a current deadbeat controller is presented in the inner loop in order to achieve fast dynamic response, high tracking accuracy and robustness. Cases of two-terminal VSC-HVDC system are developed in MATLAB/SimPowerSystems to verify the validity of the proposed control strategy. Simulation results show that the proposed control scheme provides a high performance control solution to the VSC-HVDC system.