US 11,754,050 B2
Modular tower damper system
Søren Bøgelund Madsen, Aarhus N (DK); and Tue Hald, Hadsten (DK)
Assigned to Vestas Wind Systems A/S, Aarhus N (DK)
Appl. No. 17/312,657
Filed by Vestas Wind Systems A/S, Aarhus N. (DK)
PCT Filed Dec. 11, 2019, PCT No. PCT/DK2019/050383
§ 371(c)(1), (2) Date Jun. 10, 2021,
PCT Pub. No. WO2020/125886, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. PA 2018 70846 (DK), filed on Dec. 20, 2018.
Prior Publication US 2022/0049682 A1, Feb. 17, 2022
Int. Cl. F03D 80/80 (2016.01); F03D 13/20 (2016.01); F03D 7/02 (2006.01); F16F 7/10 (2006.01)
CPC F03D 13/20 (2016.05) [F03D 7/0296 (2013.01); F03D 80/88 (2016.05); F16F 7/1034 (2013.01); F05B 2240/912 (2013.01); F05B 2260/964 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wind turbine tower comprising:
a tower section forming an upper part of the wind turbine tower;
a damper module including at least one liquid damper that includes a container comprising an interior volume containing an amount of liquid; and
a frame structure including an interface arrangement that cooperates with a damper module suspension arrangement to secure the damper module to the tower section, the frame structure further including a liquid damper fastening arrangement for securing the at least one liquid damper to the frame structure,
wherein the amount of liquid in the interior volume of the container sets a natural frequency of the liquid damper, and
wherein the container is fixed a radial distance from an inner tower section wall and wherein the container remains at that radial distance when the wind turbine tower oscillates.