公开(公告)号：US20220074386A1

公开(公告)日：2022-03-10

申请号：US17417082

申请日：2019-12-03

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Johnny NIELSEN ,  Jens VAN SCHELVE ,  Goncalo Lucas MARCOS ,  Dan HILTON ,  Kristian KIIB

IPC: F03D7/02

Abstract: A method of correcting a pitch angle deviation of a blade of a wind turbine is provided. First blade load measurements measured when the wind turbine was operating in a first operational mode are provided, and used to determine calibration parameters. Second blade load measurements measured when the wind turbine was operating in a second operational mode are provided, and the calibration parameters applied to determine calibrated blade load measurements. A pitch angle deviation of at least one blade of the turbine is estimated based on an identified difference between the calibrated blade load measurements, and a pitch angle is adjusted to correct for the pitch angle deviation.

公开(公告)号：US20220154693A1

公开(公告)日：2022-05-19

申请号：US17529073

申请日：2021-11-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Goncalo Lucas MARCOS ,  Lars GLAVIND ,  Johnny NIELSEN

IPC: F03D7/04 ,  F03D7/02 ,  G01P13/02

Abstract: Systems and methods for estimating a direction of wind incident on a wind turbine, the wind turbine comprising a tower; a rotor-nacelle-assembly (RNA) carried by the tower; a deflection sensor configured to sense a position of the RNA or a deflection of the tower; and a wind direction sensor. One approach includes: obtaining deflection training data from the deflection sensor; obtaining wind direction training data from the wind direction sensor; training a machine learning model on the basis of the deflection training data and the wind direction training data in order to obtain a trained machine learning model; obtaining further deflection data from the deflection sensor; inputting the further deflection data into the trained machine learning model; and operating the machine learning model to output a wind direction estimate on the basis of the further deflection data.

公开(公告)号：US20240376865A1

公开(公告)日：2024-11-14

申请号：US18681767

申请日：2022-08-04

Applicant: Vestas Wind Systems A/S

Inventor： Ines PINTO FRUTUOSO ,  Goncalo Lucas MARCOS ,  Goncalo Artur Duarte PEREIRA ,  Johnny NIELSEN

IPC: F03D17/00

Abstract: A method of calibrating a reference of a wind turbine. The method comprises monitoring performance of the wind turbine over a calibration period to generate performance data, wherein the calibration period comprises a series of sub-periods. The reference is calibrated by: setting the reference on the basis of the performance data; and, for each sub-period: determining a sub-period value on the basis of the performance data generated during that sub-period, comparing the sub-period value with the reference, and updating the reference with the sub-period value if the comparison shows that a performance of the wind turbine indicated by the sub-period value is better than a performance of the wind turbine indicated by the reference. The comparison and updating steps enable the reference to more accurately reflect more recent performance of the wind turbine. The method can also be reliably used in freezing temperatures.