A wind engine has at least a central rotor (1) which has several groups of frameworks evenly distributed around it (2), each of the frameworks is provided with at least one set of power generation parts (3); the profile frame for the power generation parts is provided with a reversing and return booster (3g) for controlling the reversing speed, and each group of the frameworks is provided with a driver (8) and an opening adjustment positioner (7), and the brake releases or limits the reversing of the power generation parts by making or breaking the control circuit of the power distributor (21). The wind engine enables the power generation system to operate continuously and stably to generate power within the set varying range of different wind speed parameters and can improve power generation efficiency.