Abstract: With the increase of wind power permeability, the power grid gradually presents the characteristics of weak power grid. The traditional current controlled doubly fed induction generator (CC-DFIG) group is difficult to operate stably in a weak grid due to the influence of the phase-locked loop. The hybrid controlled doubly fed induction generator (HC-DFIG) group adopts power synchronization on the stator side, which is suitable for operation in a weak grid. In order to further analyze the stability of HC-DFIG, the D-segmentation method was used to obtain the stability range of HC-DFIG controller parameters and the influence of controller parameter changes on DFIG stability under the constraints of multiple stability conditions, as well as the suitable range of power grid short-circuit ratio for HC-DFIG and CC-DFIG control strategies. The alternate switching between the two strategies was designed to improve the stability of DFIG grid connection. Finally, it is verified by simulation and experiment.