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公开(公告)号：US12006914B2
公开(公告)日：2024-06-11
申请号：US17623078
申请日：2020-06-22
IPC分类号： F03D7/02
CPC分类号： F03D7/0224 , F03D7/028 , F05B2270/1033 , F05B2270/32 , F05B2270/327 , F05B2270/331
摘要： There is provided a method of controlling power output of a wind turbine at below-rated wind speed, the method comprising: determining an indication of blade torsion of one or more rotor blades of the wind turbine in dependence on wind speed and/or rotor speed; determining a torsion-corrected blade pitch based on the indication of blade torsion; and using the torsion-corrected blade pitch to control pitch the one or more rotor blades.
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公开(公告)号：US11988194B2
公开(公告)日：2024-05-21
申请号：US17299544
申请日：2019-10-31
发明人： Per Egedal
CPC分类号： F03D7/0224 , F03D7/0232 , F03D7/0244 , F03D7/0276 , F03D17/00 , F05B2240/3052 , F05B2260/80 , F05B2260/84 , F05B2270/101 , F05B2270/327 , F05B2270/335
摘要： A method of detecting an adjustment fault related to a wind turbine rotor blade mounted at a wind turbine rotor and including an adaptable flow regulating device, in particular spoiler and/or flap, the method including: estimating a quantity indicative of a change of a driving impact of wind on the wind turbine rotor based on at least two settings of the adaptable flow regulating device; determining another quantity indicative of a desired change of the driving impact on the wind turbine rotor, in order to change a value of a rotor speed to a reference value of the rotor speed; and indicating an adjustment fault based on a comparison of the quantity with the other quantity, is provided.
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公开(公告)号：US11976633B2
公开(公告)日：2024-05-07
申请号：US17376965
申请日：2021-07-15
CPC分类号： F03D7/043 , F03D7/0224 , F03D7/0272 , F03D7/0276 , F05B2270/327 , F05D2220/329
摘要： A control system for limiting power turbine torque (QPT) of a gas turbine engine includes a controller including a processor and memory configured to control the gas turbine engine, the controller including an engine control module that provides an effector command signal to a gas generator of the gas turbine engine; a power turbine governor module that outputs a preliminary torque request (QPT_req_pre); and a power turbine torque (QPT) optimal limiter module that outputs a maximum torque topper (QPT_max) to limit a power turbine speed overshoot of the gas turbine engine; wherein the controller outputs a minimum value between the preliminary torque request (QPT_req_pre) and the maximum torque topper (QPT_max) to the engine control module.
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公开(公告)号：US11959458B2
公开(公告)日：2024-04-16
申请号：US17311397
申请日：2019-10-31
发明人： Per Egedal , Thomas Esbensen , Gustav Hoegh
CPC分类号： F03D7/0232 , F03D1/0641 , F05B2270/32 , F05B2270/321 , F05B2270/324 , F05B2270/327 , F05B2270/328 , F05B2270/329 , F05B2270/335 , F05B2270/709
摘要： Provided is a method of correcting a measurement value of least one wind characteristic, in particular wind speed and/or wind direction, related to a wind turbine having a rotor with plural rotor blades at least one having an adaptable flow regulating device installed, the method including: measuring a value of the wind characteristic; obtaining state information of the adaptable flow regulating device; and determining a corrected value of the wind characteristic based on the measured value of the wind characteristic and the state information of the adaptable flow regulating device.
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95.发明公开公开(公告)号：US20240093669A1
公开(公告)日：2024-03-21
申请号：US18274913
申请日：2022-01-12
发明人： Carlos Moral Gonzalez , Felipe Palou Larranaga , Juan Jose Pena Martinez , Carlos Pizarro De La Fuente , Jaime Suarez Aizpun , Jesus Bas Quesada
CPC分类号： F03D7/0224 , F03D7/048 , F05B2270/1032 , F05B2270/1033 , F05B2270/32 , F05B2270/327 , F05B2270/329 , F05B2270/708
摘要： A system includes a wind turbine a wind and a first control device for controlling the wind turbine. The first control device is configured to acquire a yaw misalignment of the wind turbine, which yaw misalignment is a difference between the actual yaw angle and a wind direction at the wind turbine; and to determine at least one of a target pitch angle of the blade and a target torque of the generator based on the yaw misalignment to optimize a power output from the wind turbine. Further, a wind farm includes the system and a method of controlling a wind turbine.
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公开(公告)号：US11920564B2
公开(公告)日：2024-03-05
申请号：US17299909
申请日：2019-10-31
发明人： Per Egedal , Gustav Hoegh
CPC分类号： F03D7/0232 , F03D1/0633 , F03D7/0224 , F05B2240/3052 , F05B2270/327
摘要： Provided is a wind turbine and to a method and a device for controlling aerodynamic properties of a blade of the wind turbine, the blade including a predetermined number of add-on members which are actuated by a corresponding trim actuator to alter the aerodynamic properties of the blade, wherein each trim actuator is configured to hold the add-on member in a predetermined first position and a predetermined second position. The control device is configured to determine a first number of add-on members which are to be held at the predetermined first position, and to determine a second number of add-on members which are to be held at the predetermined second position.
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97.发明授权公开(公告)号：US11905932B2
公开(公告)日：2024-02-20
申请号：US17928017
申请日：2021-05-21
IPC分类号： F03D7/02
CPC分类号： F03D7/0276 , F05B2260/96 , F05B2270/1011 , F05B2270/327 , F05B2270/404 , F05B2270/708
摘要： A device and a method of controlling blade instabilities of a wind turbine is provided. The method including the following steps: defining at least one preliminary overspeed threshold value; defining a fluttering rotor speed at and above which a predetermined fluttering of at least one of the blades occurs, the fluttering rotor speed is defined as a function of the pitch angle and/or as a function of the wind speed; setting a final overspeed threshold value to be equal to or smaller than a minimum rotor speed of the at least one preliminary overspeed threshold value and the fluttering rotor speed at the actual pitch angle and/or at the actual wind speed; and controlling the rotor speed to not exceed the final overspeed threshold value.
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公开(公告)号：US11885303B2
公开(公告)日：2024-01-30
申请号：US17793602
申请日：2021-01-15
IPC分类号： F03D7/02
CPC分类号： F03D7/0224 , F05B2270/327
摘要： A method of operating a wind turbine generator comprising a plurality of blades, the method comprising iterating the following steps: comparing an indicated rotor speed with a rotor speed target to determine a rotor speed error; generating a modified rotor speed error by applying a control factor to the rotor speed error; controlling the pitch angle of the blades via a pitch control system in accordance with the modified speed error; and altering the control factor in dependence on a size of the indicated rotor speed.
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公开(公告)号：US20240026857A1
公开(公告)日：2024-01-25
申请号：US16972708
申请日：2019-06-04
发明人： Enno VON ASWEGE
CPC分类号： F03D7/0224 , F03D7/048 , F05B2270/101 , F05B2270/327 , F05B2270/328
摘要： Provided are a method for operating a wind turbine, wherein the wind turbine has an aerodynamic rotor with at least one rotor blade which is mounted on a rotor hub of the rotor, wherein a blade angle of the at least one rotor blade can be adjusted about its longitudinal axis with respect to the rotor hub, and a corresponding wind turbine. The method has the following steps: providing current wind properties; providing an actual blade angle of the rotor blade or an average value of all actual blade angles of the rotor blades; determining a steady-state blade angle of the at least one rotor blade which, taking into account known rotor properties, the electrical system and the wind properties, leads to a desired steady operating state of the wind turbine; comparing the steady-state blade angle with the actual blade angle or the average value of all actual blade angles; adapting an operation of the wind turbine if the steady-state blade angle deviates significantly from the actual blade angle or the average value of all actual blade angles.
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公开(公告)号：US11867153B2
公开(公告)日：2024-01-09
申请号：US17460845
申请日：2021-08-30
发明人： Peter Fogh Odgaard , Mengting Yu
IPC分类号： F03D7/02
CPC分类号： F03D7/028 , F05B2260/821 , F05B2270/1033 , F05B2270/327
摘要： A method and device for controlling output power in a primary frequency modulation process of a wind turbine are provided by the present disclosure. The method includes predicting a rotational speed of the wind turbine; determining frequency modulation remaining time based on the predicted rotational speed, the frequency modulation remaining time being time for which the wind turbine is able to continue to output frequency modulation power as the output power used for the primary frequency modulation without affecting a recovery of the wind turbine after the primary frequency modulation; controlling the output power based on the determined frequency modulation remaining time.
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