METHOD OF CONVERTING ENERGY OF AIR FLOW INTO ROTARY MOTION OF WIND-DRIVEN POWER PLANT Russian patent published in 2019 - IPC F03D5/00 

FIELD: electricity.

SUBSTANCE: invention relates to the field of non-conventional energy. Method of converting energy of air flow into rotary motion of wind-driven power plant, consisting in the fact that the main axis of wind-driven power plant is installed perpendicular to direction of air flow and at some distance from main axis wings are placed, which axes are parallel to the main axis, around which each wing under action of air flow rotates on circular orbit and oscillates about its own axis. When receiving at the output of the main wind axis sensor of the wind-driven power plant signals not exceeding the nominal value, the extreme controller of the main axis on the base of the controller controls the attack angles α of control wing relative to vector of total air flow in all points of circular orbit, except for zones of change of wing shape, acting through its flap servo drive to control wing position, simultaneously controller stores commands, supplied to flap control servomotor in all points of circular orbit at each turn of wind-driven power plant and calculates rotation lag in circular orbits of other wings relative to control one, and then transmits said data as control commands directly to flap servos of other wings, when receiving at signal output a signal exceeding said nominal value, its output signal is switched to the input of the main axis revolutions stabilization regulator also on the basis of the controller which controls the attack angles α of control wing relative to vector of total air flow in all points of circular orbit, with the exception of the wing shape changing zones, acting through its flap servo drive to the control wing position, simultaneously the controller memorises commands supplied to the control flap servo drive, in all points of circular orbit at each turn of wind-driven power plant and calculates rotation lag in circular orbits of other wings relative to control wing, and then these data is transmitted as control commands directly to servos of flaps of other wings.

EFFECT: invention is aimed at stability of wind turbine operation at low wind speeds.

3 cl, 7 dwg