ESTIMATING WIND SPEED
    2.
    发明申请

    公开(公告)号:WO2020120020A1

    公开(公告)日:2020-06-18

    申请号:PCT/EP2019/079844

    申请日:2019-10-31

    Abstract: It is described a method of estimating a value (25) of wind speed a wind turbine (1) is subjected to, the wind turbine having a rotor (3) with rotor blades (5) at least one having an adaptable flow regulating device (7) installed, the method comprising: obtaining values (23) for power output of the wind turbine, rotor speed of the rotor (3), and pitch angle of the rotor blades (5); obtaining state information (13) of the adaptable flow regulating device (7); and estimating the value (25) of the wind speed based on the values (23) for power output, rotor speed, pitch angle and the state information (13) of the adaptable flow regulating device (7).

    DETECTING A WIND TURBINE ROTOR BLADE ADJUSTMENT FAULT

    公开(公告)号:WO2020120016A1

    公开(公告)日:2020-06-18

    申请号:PCT/EP2019/079834

    申请日:2019-10-31

    Inventor: EGEDAL, Per

    Abstract: It is described a method of detecting an adjustment fault (47) related to a wind turbine rotor blade (1) mounted at a wind turbine rotor (4) and comprising an adaptable flow regulating device (11), in particular spoiler and/or flap, the method comprising: estimating a quantity (41) indicative of a change of a driving impact of wind (9) on the wind turbine rotor (4) based on at least two settings (19a, 19b) of the adaptable flow regulating device (11); determining another quantity (43) indicative of a desired change of the driving impact on the wind turbine rotor, in order to change a value (25) of a rotor speed to a reference value (27) of the rotor speed; and indicating an adjustment fault (47) based on a comparison of the quantity (41) with the other quantity (43).

    CONTROLLING OF SEGMENTED ADD-ON MEMBERS OF A WIND TURBINE BLADE

    公开(公告)号:WO2020120009A1

    公开(公告)日:2020-06-18

    申请号:PCT/EP2019/079814

    申请日:2019-10-31

    Abstract: The present invention relates to a wind turbine and to a method and a device (10) for controlling aerodynamic properties of a blade (6) of the wind turbine, the blade (6) comprising a predetermined number of add-on members (17) which are actuated by a corresponding trim actuator to alter the aerodynamic properties of the blade (6), wherein each trim actuator is configured to hold the add-on member (17) in a predetermined first position and a predetermined second position. The control device (10) is configured to determine a first number of add-on members (17) which are to be held at the predetermined first position, and to determine a second number of add-on members (17) which are to be held at the predetermined second position.

    DAMPING OSCILLATIONS OF A WIND TURBINE HAVING AN ELECTROLYZER

    公开(公告)号:WO2022214262A1

    公开(公告)日:2022-10-13

    申请号:PCT/EP2022/055915

    申请日:2022-03-08

    Abstract: It is described a method of controlling a wind turbine (1) for damping at least one oscillation of at least one wind turbine component, the wind turbine having a generator system (2) coupled to an electrolyzer (7) for producing H2 by electrolysis of water, the method comprising: determining, in particular dynamically, a power capability (11a, 11b) of the electrolyzer (7), in particular based on electrolyzer state information (12); determining a primary power reference (13) and/or a damping power term (14) such that a sum power reference (15), being the sum of the primary power reference and the damping power term, satisfies the power capability (11a,11b) of the electrolyzer.

    DAMPING VIBRATIONS IN A WIND TURBINE
    8.
    发明申请

    公开(公告)号:WO2020120017A1

    公开(公告)日:2020-06-18

    申请号:PCT/EP2019/079839

    申请日:2019-10-31

    Abstract: It is proposed a method for damping vibration in a wind turbine (10) including a plurality of aerodynamic devices (30) for influencing the airflow (61) flowing from the leading edge (41) of a rotor blade (20) of the wind turbine (10) to the trailing edge (31) of the rotor blade (20), each aerodynamic device (30) being movable by an actuator between a first protruded configuration and a second retracted configuration. The method comprises the steps of: - measuring vibrations in the wind turbine (10), - if the measured vibrations are greater than a predefined threshold within a predefined frequency band, moving a portion of the aerodynamic devices (30) to the second retracted configuration and continuing to measure vibrations in the wind turbine (10), - if the measured vibrations are still greater than a predefined threshold within a predefined frequency band, reducing the pitch angle interval of the rotor blade (20) and continuing to measure vibrations in the wind turbine (10), - if the measured vibrations are still greater than a predefined threshold within a predefined frequency band, moving all the aerodynamic devices (30) to the second retracted configuration.

    WIND TURBINE CONTROL METHOD AND SYSTEM
    9.
    发明申请

    公开(公告)号:WO2020120015A1

    公开(公告)日:2020-06-18

    申请号:PCT/EP2019/079833

    申请日:2019-10-31

    Abstract: There is described a method of controlling a wind turbine, the wind turbine comprising a plurality of rotor blades, a first controller for controlling an adaptive flow regulating system having a plurality of individually controllable adaptive flow regulating devices arranged on the rotor blades, and a second controller for controlling a pitch regulating system for regulating a pitch angle of each rotor blade, the method comprising (a) determining a diagnostic value indicative of an operational efficiency of the adaptive flow regulating system, (b) determining a first gain value for the first controller and a second gain value for the second controller based on the diagnostic value, (c) applying the first gain value to control signals for the adaptive flow regulating system generated by the first controller, and (d) applying the second gain value to control signals for the pitch regulating system generated by the second controller. Furthermore, a wind turbine controller and a wind turbine comprising such a controller are described.

    WIND TURBINE BLADE FLOW REGULATION
    10.
    发明申请

    公开(公告)号:WO2020120012A1

    公开(公告)日:2020-06-18

    申请号:PCT/EP2019/079822

    申请日:2019-10-31

    Abstract: It is disclosed a wind turbine (10) including: - at least a rotor blade (20) comprising an aerodynamic device (30) for influencing the airflow (61) flowing from the leading edge section (24) of the rotor blade (20) to the trailing edge section (23) of the rotor blade (20), wherein the aerodynamic device (30) is mounted at a surface (28) of the rotor blade (20), - a pressure supply system (52) for providing a pressurized fluid for operating the aerodynamic device (30) between a first protruded configuration and a second retracted configuration, - a control unit (51) for controlling the pressure supply system (52), - a monitor unit (54) for monitoring a pressure and/or a flow rate of the pressurized fluid, and configured for: - receiving a measured pressure and/or flow rate signal in at least one section of the pressure supply system (52), - deriving an operative status of the aerodynamic device (30) based on the measured pressure and/or flow rate signal.

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