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    METHOD OF CALIBRATING A REFERENCE OF A WIND TURBINE
    1.
    发明申请
    METHOD OF CALIBRATING A REFERENCE OF A WIND TURBINE 审中-公开

    公开(公告)号：WO2023011696A1

    公开(公告)日：2023-02-09

    申请号：PCT/DK2022/050163

    申请日：2022-08-04

    Applicant: VESTAS WIND SYSTEMS A/S

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

    IPC: F03D17/00 ,  F03D80/40

    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.

    CORRECTING PITCH ANGLE
    2.
    发明申请
    CORRECTING PITCH ANGLE 审中-公开

    公开(公告)号：WO2020125885A1

    公开(公告)日：2020-06-25

    申请号：PCT/DK2019/050377

    申请日：2019-12-03

    Applicant: VESTAS WIND SYSTEMS A/S

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

    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.

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