WIND-DRIVEN POWER PLANT Russian patent published in 2024 - IPC F03D7/04 

FIELD: wind power engineering.

SUBSTANCE: wind-driven power plant control method is characterized by the fact that wind speed signals are generated at the wind wheel rotation axis height and the wind wheel blades installation angle setting, determining the frequency deviation of the power system from the setpoint and additionally adjusting the total angle of installation of the wind wheel blades within the limits determined by the wind speed signal and the installed power of the wind power plant until the wind wheel is switched to the fan mode, for example, against the direction of the wind, and the generator in the motor mode. For this, the wind-driven power plant is additionally equipped with blades control unit (15), power system frequency setting sensor (11) and the system frequency setting device (12), the outputs of which are connected through power system frequency controller (13) to adder (14) first input, which second input is connected through blade common angle setter (10) to wind speed sensor (9) output, output of adder (14) is connected to the first input of blade control unit (15), the second input of which, as well as the input of frequency sensor (11) are connected to the power system, and the output is connected to the input of power supply unit (8) of electric motors (6). At the same time setter (10) of common angle of installation of blades is made in form of functional unit with constant signal at output in range of wind speeds 0<U<U_nom of constant speed and with increasing signal at output in range of wind speeds U_nom<U<U_max of constant rotation speed.

EFFECT: considerable expansion of installed capacity of wind-driven power plants for frequency control of the power system.

2 cl, 3 dwg