Abstract：In order to build the dynamic simulation model of a double-fed wind power system, the mathematical model of DFIG was built through abc-dq coordinate transformations. The grid-side converter is adapted by using vector control oriented by grid voltage. The rotor-side converter is achieved by stator flux directional vector control technology. Meanwhile, hysteretic current control technology is introduced. When the wind speed changes or the voltage drops, the simulation model is analyzed by PSCAD. The results show that the vector control can improve the ability of low voltage ride through the system, and that the control system is effective and the simulation is right.

Keyword：double-fed wind power system;PSCAD;vector control;dynamic simulation model;hysteresis control;