US 12,012,935 B2
Controlling noise emissions from individual blades of a wind turbine
Jacob Deleuran Grunnet, Tranbjerg J (DK); and Erik Sloth, Rønde (DK)
Assigned to Vestas Wind Systems A/S, Aarhus N. (DK)
Appl. No. 17/618,555
Filed by Vestas Wind Systems A/S, Aarhus N. (DK)
PCT Filed Jun. 17, 2020, PCT No. PCT/DK2020/050173
§ 371(c)(1), (2) Date Dec. 13, 2021,
PCT Pub. No. WO2020/259770, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. PA 2019 70395 (DK), filed on Jun. 24, 2019.
Prior Publication US 2022/0243700 A1, Aug. 4, 2022
Int. Cl. F03D 7/02 (2006.01); F03D 7/04 (2006.01)
CPC F03D 7/0296 (2013.01) [F03D 7/0224 (2013.01); F03D 7/045 (2013.01); F03D 7/048 (2013.01); F05B 2260/96 (2013.01); F05B 2270/32 (2013.01); F05B 2270/327 (2013.01); F05B 2270/329 (2013.01); F05B 2270/333 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of controlling noise emissions from individual blades of a wind turbine, the method comprising:
defining a wind turbine model describing dynamics of the wind turbine, the wind turbine model including a description of intensity and direction of noise emissions from each individual blade as a function of azimuthal angle; and
applying a model-based control algorithm using the wind turbine model to determine at least one control output, and using the at least one control output to control at least a directionality of the noise emissions from each of the individual blades.
 
13. A controller for controlling noise emissions from individual blades of a wind turbine, the controller being configured to:
define a wind turbine model describing dynamics of the wind turbine, the wind turbine model describing intensity and direction of noise emissions from each individual blade as a function of azimuthal angle; and
apply a model-based control algorithm using the wind turbine model to determine at least one control output, and use the at least one control output to control at least a directionality of the noise emissions from each of the individual blades.