US 12,454,938 B2
Devices and methods for mitigating vibrations in wind turbines
Salim El-Naaman, Kongens Lyngby (DK); Christian Kjer Elkjær, Kolding (DK); Maurits Bakkum, Heerhugowaard (NL); Casper Kildegaard, Lunderskov (DK); and Andreas Herrig, Garching (DE)
Assigned to GE Vernova Renovables Espana, S.L., Barcelona (ES)
Filed by General Electric Renovables Espana, S.L., Barcelona (ES)
Filed on Jul. 18, 2023, as Appl. No. 18/354,047.
Claims priority of application No. 22382695 (EP), filed on Jul. 19, 2022.
Prior Publication US 2024/0026855 A1, Jan. 25, 2024
Int. Cl. F03D 1/06 (2006.01); F03D 7/02 (2006.01); F03D 17/00 (2016.01)
CPC F03D 1/06495 (2023.08) [F03D 1/0641 (2013.01); F03D 1/0648 (2023.08); F03D 7/0298 (2023.08); F03D 17/015 (2023.08); F03D 17/028 (2023.08); F05B 2240/301 (2013.01); F05B 2240/311 (2013.01); F05B 2260/96 (2013.01); F05B 2270/334 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An assembly for a wind turbine blade of a wind turbine, comprising:
a vibration mitigating device configured to be arranged around the blade, the vibration mitigating device comprising:
a main body configured to extend chord-wise around and encircle the blade, the main body comprising at least one inflatable body;
a plurality of inflatable air flow modifying elements extending radially outward from the main body;
a pressure source connectable to the at least one inflatable body and the air flow modifying elements to inflate the at least one inflatable body and the airflow modifying elements based on measurements of a sensor system that monitors a condition of the wind turbine or an environmental condition around the wind turbine;
wherein the pressure source is configured to regulate an inflation level of the at least one inflatable body and the air flow modifying elements such that the inflation level is controlled based on variations or changing circumstances detected by the sensor system; and
wherein the at least one inflatable body comprises a longitudinal length in a span-wise direction of the blade, the plurality of inflatable air flow modifying elements configured as inflatable plates extending radially outward from the at least one inflatable body and extending completely along the longitudinal length of the at least one inflatable body.