公开(公告)号：US20240401571A1

公开(公告)日：2024-12-05

申请号：US18686367

申请日：2022-08-25

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Goncalo Artur DUARTE PEREIRA ,  Jens VAN SCHELVE ,  Johnny NIELSEN

IPC: F03D17/00

Abstract: The invention provides a method of identifying recurrent free-flow wind disturbances associated with a wind turbine. The method comprises monitoring a signal indicative of a parameter associated with operation of the wind turbine, determining an expected signal of the parameter based on the monitored signal, determining a difference between values of the monitored signal and the determined expected signal, and correlating the determined differences with yaw position of a nacelle of the wind turbine. The method includes determining, based on the correlated differences, unexpected values of the parameter for different yaw positions, and identifying, based on a frequency of occurrence of the determined unexpected values, a recurrent free-flow wind disturbance associated with a yaw position of the nacelle.

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：US20240077058A1

公开(公告)日：2024-03-07

申请号：US17766983

申请日：2020-10-09

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Carlo Alberto RATTI ,  Johnny NIELSEN ,  Jens VAN SCHELVE

IPC: F03D7/02 ,  F03D7/04

CPC classification number: F03D7/026 ,  F03D7/046 ,  F05B2270/3202

Abstract: A method of transitioning a wind turbine from a sleep state is provided in which a wind speed at the wind turbine is measured, and the measured wind speed is compared to a wake-up threshold. If the wind speed exceeds the wake-up threshold, the wind turbine is transitioned to an active state. Before comparing, either the measured wind speed or the wake-up threshold is adjusted based on an outcome of at least one previous transition from the sleep state of the wind turbine.

公开(公告)号：US20210190041A1

公开(公告)日：2021-06-24

申请号：US17132942

申请日：2020-12-23

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Goncalo Artur DUARTE PEREIRA ,  Ines PINTO FRUTUOSO ,  Johnny NIELSEN ,  Jens VAN SCHELVE

IPC: F03D7/04 ,  F03D7/02

Abstract: The present invention relates to a method of operating a wind turbine with an operational parameter where values of the operational parameter are obtained by different sensors and compared to determine the validity of the value. A first value and a second value of the operational parameter are obtained different sensors and validated by comparing the two values. The wind turbine being operated using a validated value as the operational parameter. The two sensors are selected among a trained machine learning model, a reference sensor and a computerized physical model.