Voltage source converter station for flexible high voltage direct current (VSC-HVDC) is the ideal power transmission mode for wind generation. The inside loop made use of input output feedback linearization method to make the nonlinear coupled converter mathematical model be linearization and decoupled based on the conventional double closed-loop control structure for VSC-HVDC system in this paper. It converted the complex nonlinear system into a linear system control problem. A case of two-terminal VSC-HVDC system for grid connection of wind farms is developed in Matlab/Simulink. The simulation results show the effectiveness and feasibility of the proposed control methods.