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公开(公告)号：US12085062B2
公开(公告)日：2024-09-10
申请号：US18451473
申请日：2023-08-17
CPC分类号： F03D80/601 , F03D7/04 , F03D80/70 , F05B2260/201 , F05B2270/3032 , F05B2270/327
摘要： A method is for operating a wind turbine. The wind turbine includes a nacelle including a nacelle component, in particular a rotor bearing, and a nacelle air flow influencing unit. The nacelle air flow influencing unit is configured to influence an air flow entering, flowing through and/or exiting the nacelle. The method includes: determining an operating condition of the nacelle component, determining a cooling demand of the nacelle component dependent on the determined operating condition of the nacelle component, controlling an operation of the nacelle air flow influencing unit dependent on the cooling demand of the nacelle component to adapt the air flow to the cooling demand of the nacelle component.
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公开(公告)号：US20240240613A1
公开(公告)日：2024-07-18
申请号：US18557872
申请日：2022-04-26
发明人： Kristian KIIB , Johnny NIELSEN
IPC分类号： F03D7/04
CPC分类号： F03D7/042 , F05B2260/821 , F05B2270/327
摘要： The invention relates to determining rotor speed of a wind turbine. The invention involves receiving angular velocity sensor data indicative of an angular velocity of the wind turbine rotor hub, provided e.g by a gyroscope and receiving acceleration sensor data indicative of an acceleration of the rotor hub in at least one radial direction relative to an axis of rotation of the rotor hub. The invention involves determining first and second estimated rotational speeds of the rotor hub based on the respective angular velocity sensor data and acceleration sensor data. The invention involves determining a correction value based on a difference between the first and second estimated rotational speeds, and applying the correction value to the first estimated rotational speed to determine the true current rotor speed of the wind turbine.
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公开(公告)号：US20240229773A1
公开(公告)日：2024-07-11
申请号：US18585536
申请日：2024-02-23
申请人： NTN CORPORATION
发明人： Hitoshi SAITO , Takashi HASEBA
CPC分类号： F03D17/00 , F03D7/0264 , F03D80/70 , F05B2240/50 , F05B2260/4031 , F05B2260/80 , F05B2270/327 , F05B2270/807 , Y02E10/72
摘要： A condition monitoring system includes a monitoring terminal, an acceleration sensor, and a data processor. The data processor calculates a diagnostic parameter from data measured by the acceleration sensor, determines a degree of damage to a bearing or a gear included in a wind turbine generator based on the diagnostic parameter, and controls the monitoring terminal to show information indicating a degree of suppression of electric power generated by the wind turbine generator in accordance with the degree of damage to the bearing or the gear.
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公开(公告)号：US11994108B2
公开(公告)日：2024-05-28
申请号：US17258430
申请日：2019-07-03
CPC分类号： F03D7/0296 , F03D1/02 , F03D7/0224 , F03D7/0264 , F03D7/042 , F05B2240/211 , F05B2240/37 , F05B2260/70 , F05B2260/964 , F05B2270/327
摘要： A method of damping oscillations in a multi-rotor wind turbine and a wind turbine are provided. The wind turbine comprises a wind turbine support structure and at least a first nacelle with a first rotor and a second nacelle with a second rotor, at least one of the nacelles being located at a position away from a central longitudinal axis of the wind turbine support structure. The method comprises the steps of receiving and processing motion data, selecting a damping algorithm and generating a pitch control signal. The processing comprises determining at least one prominent oscillation mode of the wind turbine support structure and selecting a corresponding damping algorithm.
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公开(公告)号：US20240060477A1
公开(公告)日：2024-02-22
申请号：US18451473
申请日：2023-08-17
CPC分类号： F03D80/601 , F03D7/04 , F05B2260/201 , F05B2270/3032 , F05B2270/327
摘要： A method is for operating a wind turbine. The wind turbine includes a nacelle including a nacelle component, in particular a rotor bearing, and a nacelle air flow influencing unit. The nacelle air flow influencing unit is configured to influence an air flow entering, flowing through and/or exiting the nacelle. The method includes: determining an operating condition of the nacelle component, determining a cooling demand of the nacelle component dependent on the determined operating condition of the nacelle component, controlling an operation of the nacelle air flow influencing unit dependent on the cooling demand of the nacelle component to adapt the air flow to the cooling demand of the nacelle component.
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公开(公告)号：US20240035442A1
公开(公告)日：2024-02-01
申请号：US18254391
申请日：2021-11-12
发明人： Liekele Broersma , Peder Bay Enevoldsen , Alejandro Gomez Gonzalez , Erik Steven Haugen , Bjarne Skovmose Kallesøe
CPC分类号： F03D7/0232 , F03D17/011 , F03D17/028 , F03D13/401 , F05B2240/3052 , F05B2260/83 , F05B2270/32 , F05B2270/321 , F05B2270/327 , F05B2260/02
摘要： A load mitigation arrangement of a non-mounted rotor blade, includes at least one actuatable lift-modification device arranged on a surface of the rotor blade; a monitor configured to estimate the magnitudes of loads acting on the non-mounted rotor blade; a controller configured to actuate the lift-modification device on the basis of the estimated magnitudes to mitigate the loads acting on the non-mounted rotor blade. Further provided is a rotor blade assembly, and a method of performing load mitigation on a non-mounted rotor blade.
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公开(公告)号：US11852120B2
公开(公告)日：2023-12-26
申请号：US17544468
申请日：2021-12-07
发明人： Ulf Schaper , Lukas Wernicke , Kai-Uwe Wegner
IPC分类号： F03D7/02
CPC分类号： F03D7/0276 , F05B2220/706 , F05B2270/32 , F05B2270/327 , F05B2270/328 , F05B2270/808 , F05B2270/8041
摘要： A method of adjusting at least one rotor blade of a wind turbine which includes the steps of receiving a command for adjustment of the rotor blade at an adjustment speed, ascertaining a current moment of inertia of the rotor blade and acceleration of the rotor blade until reaching the adjustment speed, wherein the acceleration until reaching the adjustment speed is limited in dependence on the ascertained moment of inertia. A system and a wind turbine.
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公开(公告)号：US11841004B2
公开(公告)日：2023-12-12
申请号：US17295320
申请日：2019-11-22
发明人： Enno Von Aswege
CPC分类号： F03D7/0276 , F03D7/028 , F03D7/0224 , F03D7/048 , F05B2270/101 , F05B2270/1033 , F05B2270/327 , F05B2270/328 , F05B2270/335 , F05B2270/705
摘要： A controller structure for a wind turbine having an aerodynamic rotor with at least one rotor blade, wherein the controller structure is designed to control a rotation speed of the rotor of the wind turbine, wherein the controller structure is designed as a cascade control arrangement and has an outer control loop and an inner control loop, wherein the inner control loop receives an input signal which comprises a change in the rotation speed, an acceleration of the rotation speed, a function of the change in the rotation speed and/or a function of the acceleration of the rotation speed.
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公开(公告)号：US20230345931A1
公开(公告)日：2023-11-02
申请号：US18309945
申请日：2023-05-01
申请人： Timothy Just
发明人： Timothy Just
CPC分类号： A01M29/10 , H04R1/025 , F03D9/25 , F03D80/00 , F03D7/0224 , H02K7/1838 , H02K11/0094 , A01M29/16 , F05B2270/327 , F05B2220/706 , F05B2260/42 , G06V40/10
摘要： Described herein are various systems and techniques for deterring wildlife from an area proximate a windmill. A flying wildlife emitter may be utilized for such techniques. The flying wildlife emitter may output soundwaves to deter wildlife, such as birds or bats, from entering an area around the windmill. The flying wildlife emitter may include a speaker for producing sounds as well as a controller and sensors for determining conditions around the windmill and for controlling the sound produced by the speaker. An ultraviolet emitter may, additionally or alternatively, be utilized for such techniques. The ultraviolet emitter may be configured to emit ultraviolet light that may attract wildlife away from such areas proximate to the windmill.
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公开(公告)号：US20230243333A1
公开(公告)日：2023-08-03
申请号：US18298897
申请日：2023-04-11
CPC分类号： F03D3/005 , F03D3/02 , F03D3/0409 , F03D3/062 , F03D3/061 , F03D9/25 , F05B2270/502 , F05B2240/372 , F05B2250/232 , F05B2270/327 , F05B2240/133 , F05B2240/131 , F05B2240/374 , F05B2270/602 , F05B2270/335
摘要： A multistage wind turbine or network of wind turbines with improved and optimized wind-directing, wind-shaping, and wind-power conversion features is disclosed. The shapes of these features directly affect the ability of the multistage wind turbine to use the power of moving air, to spin a rotor and create torque on a rotor shaft to generate electrical, thermal and/or other forms of energy. The wind-power-conversion mechanical efficiency described significantly improves upon previous designs by conversion of wind energy into electrical power at a superior price-to-performance ratio compared with existing alternative energy technologies.
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