FIELD: high-power windmills for using wind energy to generate electricity. SUBSTANCE: unit has cables and guys providing for uniform and distributed transmission of reaction of wind stream from windwheel blades to its rims which raises loading capacity of blades and windwheel, as well as unit power capacity, and reduces mass of blades. Effective air-stream power take-off, constant-frequency ac voltage across supply mains of existing power systems within extended range of wind velocity and windwheel speed variation are ensured by varying angle of inclination of blades for which purpose windwheel rims are turned relative to each other. Series-connected generators are first disconnected in turn from load at minimal speed of windwheel and then parallel-connected to load in turn proportionally to increase in windwheel speed. EFFECT: improved efficiency of wind energy utilization. 3 cl, 5 dwg
