METHOD FOR CONVERSION OF KINETIC WIND ENERGY ON FLYING WIND POWER PLANT Russian patent published in 2022 - IPC F03D9/32 F03D3/06 B64C27/02 B64C39/02 

FIELD: high-altitude wind energy.

SUBSTANCE: propeller with a set of blades and the possibility of their rotation is included in a composition of a flying wind power plant (hereinafter – FWPP), it provides lifting of the flying wind power plant in an installation mode and has a device for turning blades at an attack angle relatively to a wind direction. FWPP has a wind turbine with a vertical shaft of the Darye type. When FWPP approaches a working point, spatial coordinates of which are previously set in a control and stabilization unit (hereinafter – CSU) with a controller, FWPP control operating mode is turned on, and the vertical shaft of the wind turbine is rotated due to wind energy, a switching coupling and an accelerating gearbox are turned on, the lower end of a shaft of an electric machine operating in a generator mode and transmitting electricity through a communication cable is rotated, as well as a charge, discharge current regulator on a battery of a starting table. The second end of the shaft of the electric machine is connected to a propeller shaft through a shaft joint, wherein an angular position of shafts is provided by a weather vane, the control and stabilization unit with the controller, a gyroscope, a set of sensors. The stabilization unit with the controller includes a motor nut and a screw connecting the motor nut to a bearing on the propeller shaft. A load-bearing aerodynamic wing with flaps controlled by servos is installed above the wind turbine. It is fixed on the vertical shaft using a bearing and a retainer rigidly connecting the load-bearing aerodynamic wing to a load-bearing bracket. The position of the load-bearing aerodynamic wing together with the vertical shaft is changed by adjusting its attack angle relatively to the wind direction by the propeller and the control and stabilization unit with the controller, providing the necessary lifting force and the specified position of the working point of the flying wind power plant in the operating mode with a minimum distance to the starting table. In this case, a position of the vertical shaft with the attack angle of the wing is set close to a vertical relatively to the ground surface. CSU also controls, through the charge and discharge current regulator, load current and a rotation speed of the electric machine. When lifting and returning to the starting table of FWPP, CSU sets an angular position of the propeller shaft and its rotation speed. The rotation is carried out by the electric machine in an engine mode, which receives electricity from an energy-intensive battery on the starting table through the charge, discharge current regulator and the communication cable. At the same time, the vertical shaft of the wind turbine itself is disconnected from the electric machine using a switching coupling, and wings of the wind turbine itself are transferred to a weather vane mode. FWPP is based on the starting table, where a coil is provided for winding, unwinding the cable of communication with FWPP. A coil shaft is connected to an auxiliary reversible engine controlled by a unit for control of the tension of the communication cable based on the controller in the area of its exit from the coil. Moreover, the communication cable through the charge, discharge current regulator is connected to the energy-intensive battery, and an output of the latter through an inverter is connected to an external industrial network.

EFFECT: increase in energy efficiency and reliability during the operation of FWPP, provision of a position in space of its vertical shaft in a plane perpendicular to a wind direction and perpendicular to the ground surface.

2 cl, 5 dwg