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公开(公告)号：US20210246871A1
公开(公告)日：2021-08-12
申请号：US16783236
申请日：2020-02-06
发明人： Xu Fu , Bernard P. Landa
IPC分类号： F03D7/02
摘要： A method for controlling pitching of at least one rotor blade of a wind turbine includes receiving, via one or more position localization sensors, position data relating to the at least one rotor blade of the wind turbine. Further, the method includes determining, via a controller, a blade deflection signal of the at least one rotor blade based on the position data. Moreover, the method includes determining, via a computer-implemented model stored in the controller, a pitch command for the at least one rotor blade as a function of the blade deflection signal and an azimuth angle of the at least one rotor blade.
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公开(公告)号：US10069303B2
公开(公告)日：2018-09-04
申请号：US15094162
申请日：2016-04-08
发明人： Tong Zhao , Rong Li , Xu Fu , Bernard P. Landa
摘要： A power generation system is provided. The system includes a bus, at least two converters, an energy-type energy storage unit (ES), a power-type energy storage unit (PS) and a controller. The ES and the PS are coupled in parallel to the bus through corresponding converters of the at least two converters. The controller is configured to control the ES and the PS through the corresponding converters in at least two conditions during a charging mode and a discharging mode: when a power for the ES and PS is below a power threshold, control the power to flow between the ES and the bus; and when the power is above the power threshold, control a part of the power to flow between the ES and the bus and another part of the power to flow between the PS and the bus. And a method for generating power is also provided.
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公开(公告)号：US11703033B2
公开(公告)日：2023-07-18
申请号：US17229199
申请日：2021-04-13
发明人： Bernard P. Landa , Pierino Gianni Bonanni , Xu Fu
CPC分类号： F03D17/00 , F03D7/0204 , F05B2260/80 , F05B2270/329 , F05B2270/821
摘要： A method and associated system are provided for determining a yaw heading (θheading) of a wind turbine, the wind turbine having a tower and a nacelle that includes a machine head and rotor at a top thereof. The method includes configuring a single rover receiver of a global navigation satellite system (GNSS) at a fixed position relative to the nacelle. A GNSS geographic location of a tower top pivot point (TPP) of the wind turbine is determined, as well as an angular offset of the rover receiver (βrover) relative to a centerline axis of the nacelle. Based on the GNSS geo-location of the TPP and a GNSS geo-location of the rover receiver, an angular vector () relative to North of a line between the TPP and the rover receiver is determined. The yaw heading (θheading) is computed from a difference between the angle () and the angular offset (βrover) of the rover receiver.
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公开(公告)号：US12066010B2
公开(公告)日：2024-08-20
申请号：US17712321
申请日：2022-04-04
CPC分类号： F03D7/042 , F03D13/20 , F03D80/50 , G01S19/14 , F05B2270/331
摘要： A system and method are provided for determining deflection of a tower of a wind turbine, the wind turbine including a nacelle with a machine head and a rotor atop of the tower. A fixed location relative to the tower is established, and a total deflection of a geographic location (“geo-location”) of the fixed location is determined. Components of the total deflection are determined that are generated by non-thrust loads acting on the tower. The non-thrust loads deflection components are subtracted from the total deflection to determine a thrust loads deflection component corresponding to deflection of the tower from operational thrust loads on the rotor.
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公开(公告)号：US20220325699A1
公开(公告)日：2022-10-13
申请号：US17229199
申请日：2021-04-13
发明人： Bernard P. Landa , Pierino Gianni Bonanni , Xu Fu
摘要： A method and associated system are provided for determining a yaw heading (θheading) of a wind turbine, the wind turbine having a tower and a nacelle that includes a machine head and rotor at a top thereof. The method includes configuring a single rover receiver of a global navigation satellite system (GNSS) at a fixed position relative to the nacelle. A GNSS geographic location of a tower top pivot point (TPP) of the wind turbine is determined, as well as an angular offset of the rover receiver (βrover) relative to a centerline axis of the nacelle. Based on the GNSS geo-location of the TPP and a GNSS geo-location of the rover receiver, an angular vector () relative to North of a line between the TPP and the rover receiver is determined. The yaw heading (θheading) is computed from a difference between the angle () and the angular offset (βrover) of the rover receiver.
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公开(公告)号：US20160308361A1
公开(公告)日：2016-10-20
申请号：US15094162
申请日：2016-04-08
发明人： Tong ZHAO , Rong LI , Xu FU , Bernard P. Landa
CPC分类号： H02J3/381 , H02J1/12 , H02J3/386 , H02J7/0068 , H02J7/345 , H02M3/04 , H02M7/04 , H02M7/44 , Y02E10/763
摘要： A power generation system is provided. The system includes a bus, at least two converters, an energy-type energy storage unit (ES), a power-type energy storage unit (PS) and a controller. The ES and the PS are coupled in parallel to the bus through corresponding converters of the at least two converters. The controller is configured to control the ES and the PS through the corresponding converters in at least two conditions during a charging mode and a discharging mode: when a power for the ES and PS is below a power threshold, control the power to flow between the ES and the bus; and when the power is above the power threshold, control a part of the power to flow between the ES and the bus and another part of the power to flow between the PS and the bus. And a method for generating power is also provided.
摘要翻译： 提供发电系统。 该系统包括总线，至少两个转换器，能量型能量存储单元（ES），功率型能量存储单元（PS）和控制器。 ES和PS通过至少两个转换器的相应转换器与总线并联耦合。 控制器被配置为在充电模式和放电模式期间在至少两个条件下通过相应的转换器来控制ES和PS：当ES和PS的功率低于功率阈值时，控制功率在 ES和公共汽车; 并且当功率高于功率阈值时，控制一部分功率在ES和总线之间流动，另一部分功率在PS和总线之间流动。 还提供了发电的方法。
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公开(公告)号：US20230313779A1
公开(公告)日：2023-10-05
申请号：US17712321
申请日：2022-04-04
CPC分类号： F03D7/042 , F03D80/50 , F03D13/20 , G01S19/14 , F05B2270/331
摘要： A system and method are provided for determining deflection of a tower of a wind turbine, the wind turbine including a nacelle with a machine head and a rotor atop of the tower. A fixed location relative to the tower is established, and a total deflection of a geographic location (“geo-location”) of the fixed location is determined. Components of the total deflection are determined that are generated by non-thrust loads acting on the tower. The non-thrust loads deflection components are subtracted from the total deflection to determine a thrust loads deflection component corresponding to deflection of the tower from operational thrust loads on the rotor.
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公开(公告)号：US11698052B2
公开(公告)日：2023-07-11
申请号：US16783236
申请日：2020-02-06
发明人： Xu Fu , Bernard P. Landa
CPC分类号： F03D7/0224 , F03D7/024 , F03D7/0288 , F03D7/045 , F03D7/047 , F03D7/048 , F03D17/00 , F05B2270/17 , F05B2270/33 , Y02E10/72
摘要： A method for controlling pitching of at least one rotor blade of a wind turbine includes receiving, via one or more position localization sensors, position data relating to the at least one rotor blade of the wind turbine. Further, the method includes determining, via a controller, a blade deflection signal of the at least one rotor blade based on the position data. Moreover, the method includes determining, via a computer-implemented model stored in the controller, a pitch command for the at least one rotor blade as a function of the blade deflection signal and an azimuth angle of the at least one rotor blade.
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公开(公告)号：US11536250B1
公开(公告)日：2022-12-27
申请号：US17403329
申请日：2021-08-16
摘要： A system and method are provided for controlling a wind turbine. Accordingly, a controller of the wind turbine determines a thermal gradient of the tower due to solar heating. The controller also determines a displacement of a reference point of the wind turbine from a nominal position resulting from a thermal expansion of a portion of the tower. The displacement includes a displacement magnitude and a displacement direction. The displacement direction is in a radial direction opposite of a maximal peak of the thermal gradient. Additionally, the controller determines a correction factor corresponding to the displacement and a setpoint for a component of the wind turbine based, at least in part, on the correction factor. Finally, an operating state of the wind turbine is established based, at least in part, on the setpoint.
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10.发明授权公开(公告)号：US11199175B1
公开(公告)日：2021-12-14
申请号：US17092706
申请日：2020-11-09
摘要： A system and method are provided for determining a geographic location of a tower top pivot point (TPP) of a wind turbine tower having a nacelle that includes a machine head and rotor at a top thereof. At least one rover receiver of a global navigation satellite system (GNSS) is configured at a fixed position on the nacelle. A plurality of 360-degree yaw sweeps of the nacelle are conducted and the geo-location signals received by the rover receiver during the yaw sweeps are recorded. With a controller, the geo-location signals are converted into a circular plot and a radius of the plot is determined, the radius being a distance between the rover receiver and the TPP. Based on a GNSS geo-location of the rover receiver and the radius, a geo-location of the TPP is computed.
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