Based on a onsite wind turbine’s output activepower vs. generator speed curve, the shortage of conventional power control strategies of doublyfed wind turbine generation system are analyzed. Considering the generator speed restriction and activepower fasttrack control requirement, the power decoupling control strategy in the rotorside converter and variable pitch control strategy are improved, that is, an output mechanical torque of wind turbine and the generator speed of DFIG are used in the rotorside active power control loop in order to achieve an accurate optimal speed control, as well as a direct activepower control method is also adopted in the variable pitch control strategy. Finally, the overall operational performances of DFIG wind turbine generation system using the proposed control strategies are simulated, and also compared with the conventional control strategies. The results show that the improved control strategy is more valid and correct.