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    IMBALANCE ESTIMATION FOR THE WIND ROTOR OF A WIND TURBINE
    2.
    发明公开
    IMBALANCE ESTIMATION FOR THE WIND ROTOR OF A WIND TURBINE 审中-公开

    公开(公告)号：US20230340942A1

    公开(公告)日：2023-10-26

    申请号：US18027770

    申请日：2021-09-10

    申请人： Siemens Gamesa Renewable Energy A/S

    发明人： Kirk Pierce

    IPC分类号： F03D13/35

    CPC分类号： F03D13/35 ,  F05B2260/966 ,  F05B2270/334 ,  F05B2270/404 ,  F05B2260/78

    摘要： A method for compensating an imbalance of a wind rotor of a wind turbine includes applying at least one test-offset to a parameter characterizing a state of the wind rotor, wherein the imbalance depends on the parameter; measuring for the at least one test-offset an acceleration of the wind turbine, wherein the acceleration depends on the imbalance; and determining a compensation-offset based on the measured acceleration, wherein the imbalance is at least partially compensated, when the compensation-offset is applied to the parameter. Furthermore, a corresponding wind turbine includes a control unit configured to carry out the above method.

    Method and system for controlling a wind turbine to reduce nacelle vibration
    3.
    发明授权
    Method and system for controlling a wind turbine to reduce nacelle vibration 有权

    公开(公告)号：US11754043B2

    公开(公告)日：2023-09-12

    申请号：US17056395

    申请日：2019-05-08

    申请人： VESTAS WIND SYSTEMS A/S

    发明人： Keld Hammerum ,  Jesper Sandberg Thomsen

    IPC分类号： F03D7/02 ,  F03D7/04

    CPC分类号： F03D7/0296 ,  F03D7/0224 ,  F03D7/042 ,  F05B2240/21 ,  F05B2270/328 ,  F05B2270/334 ,  F05B2270/404

    摘要： Controlling a wind turbine by obtaining a movement signal indicative of a vibrational movement of a wind turbine tower is described. An actuator signal is determined based on the movement signal, the actuator signal being determined to produce a desired force to counteract the vibrational movement of the tower. A pitch reference offset signal for each one of a plurality of pitch-adjustable rotor blades is determined based on the actuator signal. An integration is then applied to the pitch reference offset signals to determine modified pitch reference offset signals based on the integrated pitch reference offset signals. A pitch signal for each of the blades is determined based on the modified pitch reference offset signals, the pitch signals being arranged to adjust the blades to provide the force that counteracts the vibrational movement of the tower.

    Wind turbine control method and system
    4.
    发明授权
    Wind turbine control method and system 有权

    公开(公告)号：US11719226B2

    公开(公告)日：2023-08-08

    申请号：US17299616

    申请日：2019-10-31

    申请人： Siemens Gamesa Renewable Energy A/S

    发明人： Per Egedal ,  Gustav Hoegh

    IPC分类号： F03D7/04 ,  F03D7/02 ,  F03D17/00

    CPC分类号： F03D7/046 ,  F03D7/028 ,  F03D7/0224 ,  F03D17/00 ,  F05B2260/80 ,  F05B2270/1033 ,  F05B2270/328 ,  F05B2270/335 ,  F05B2270/404

    摘要： A method of controlling a wind turbine including 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 includes (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, is provided.