US 12,345,232 B2
Determining tower top acceleration of a wind turbine
Kristian Kiib, Skødstrup (DK); and Jon Sowman, Brockham (GB)
Assigned to VESTAS WIND SYSTEMS A/S, Aarhus N (DK)
Appl. No. 18/568,186
Filed by VESTAS WIND SYSTEMS A/S, Aarhus N (DK)
PCT Filed Jun. 3, 2022, PCT No. PCT/DK2022/050119
§ 371(c)(1), (2) Date Dec. 7, 2023,
PCT Pub. No. WO2022/258121, PCT Pub. Date Dec. 15, 2022.
Claims priority of application No. PA202170293 (DK), filed on Jun. 8, 2021.
Prior Publication US 2024/0271602 A1, Aug. 15, 2024
Int. Cl. F03D 17/00 (2016.01)
CPC F03D 17/009 (2023.08) [F03D 17/034 (2023.08); F05B 2270/807 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of determining tower top acceleration of a wind turbine, the wind turbine comprising a tower, a nacelle atop the tower, and a plurality of acceleration sensors located in the nacelle, the method comprising:
receiving acceleration data, from the plurality of acceleration sensors, including data indicative of a measured acceleration in a direction along at least one measurement axis of each respective acceleration sensor at a current time step;
determining a predicted tower top acceleration of the tower at the current time step, the predicted tower top acceleration being determined in dependence on a kinematic model of the wind turbine that is based on a position and orientation of each acceleration sensor relative to a point defined as a top of the tower, and the predicted tower top acceleration being determined in dependence on a determined estimation of tower top acceleration at a previous time step;
determining an estimated tower top acceleration of the wind turbine tower at the current time step by updating the predicted tower top acceleration based on the measured acceleration from each of the plurality of acceleration sensors; and
controlling the wind turbine based on the estimated tower top acceleration.