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    REINFORCEMENT OF WIND TURBINE STRUCTURES
    2.
    发明申请
    REINFORCEMENT OF WIND TURBINE STRUCTURES 审中-公开

    公开(公告)号：WO2022042808A1

    公开(公告)日：2022-03-03

    申请号：PCT/DK2021/050255

    申请日：2021-08-04

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： SKAFTE, Anders

    IPC: E04H12/00 ,  F03D80/00 ,  F03D1/06 ,  F03D13/20

    Abstract: An aspect of the invention relates to a method of reinforcing a tubular wind turbine structure using a radially adjustable ring stiffener. The ring stiffener comprises a pair of adjacent ring segments coupled together by a coupling means configured to permit radial adjustment of the ring stiffener by varying an intersegmental separation between adjacent ends of those ring segments. The method comprises: positioning the ring stiffener at a reinforcement position within the tubular wind turbine structure; and adjusting the intersegmental separation between the pair of adjacent ring segments to increase the radius of the ring stiffener; and thereby to engage an inner surface of the tubular wind turbine structure with a radial force that holds the ring stiffener at the reinforcement position by means of friction between the ring stiffener and the tubular wind turbine structure.

    DETERMINING SUNLIGHT EFFECT ON WIND TURBINE TOWER INCLINATION USING TOWER TOP ACCELEROMETERS
    3.
    发明申请
    DETERMINING SUNLIGHT EFFECT ON WIND TURBINE TOWER INCLINATION USING TOWER TOP ACCELEROMETERS 审中-公开

    公开(公告)号：WO2022008014A1

    公开(公告)日：2022-01-13

    申请号：PCT/DK2021/050187

    申请日：2021-06-11

    Applicant: VESTAS WIND SYSTEMS A/S

    Inventor： SKAFTE, Anders

    IPC: F03D13/20 ,  F03D17/00

    Abstract: Systems, methods, and computer program products for determining an inclination of a wind turbine tower (12) based on acceleration measurements by an accelerometer (50) operatively coupled to a nacelle (14) of the wind turbine (10). Acceleration data is collected from the accelerometer (50), which is configured to sense acceleration along an accelerometer axis (x, y, z) while the nacelle (14) is in each of a plurality of yaw positions. The nacelle (14) is rotated in steps to each yaw position and stopped for a period of time. While the nacelle (14) is stopped, acceleration data is collected, and a static level of acceleration determined along the accelerometer axis (x, y, z) due to gravity (28). Once acceleration data has been collected at each of the positions, the minimum and maximum acceleration levels are identified. The inclination of the tower (12) is then determined based on the minimum and maximum acceleration levels.

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