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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：US10995554B2
公开(公告)日：2021-05-04
申请号：US16477643
申请日：2018-01-12
发明人： Zhiguo Ren , Xu Fu , Stewart Blake Brazil , Chengbao Wang
摘要： An auto-adjustable directional drilling apparatus comprises: a drive-shaft housing; a drill collar coupled to the drive-shaft housing; a drive shaft passing through the drive-shaft housing and the drill collar; an active stabilizer fixed to the drive-shaft housing and movably coupled to the drill collar; a sliding assembly comprising a base support fixed to the drill collar and a sliding base coupled to the drive-shaft housing, wherein the base support defines a slide way and the sliding base is slidably disposed in the slide way; and an actuating module coupled to the sliding base to drive the sliding base to slide along the slide way. An auto-adjustable directional drilling method is also disclosed.
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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：US20230077025A1
公开(公告)日：2023-03-09
申请号：US17793746
申请日：2020-01-24
摘要： A system and method are provided for controlling a wind turbine. Accordingly, a component of the wind turbine is monitored by at least one sensor of a sensor system. An output is received from the sensor system which indicates a fault with the sensor. A fault accommodation response is generated by a fault module. The fault accommodation response includes an accommodation signal which replaces the output signal of the faulty sensor.
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公开(公告)号：US10954812B2
公开(公告)日：2021-03-23
申请号：US14905641
申请日：2015-12-11
申请人： General Electric Company , William Forrester Seely , Xu Fu , Mustafa Tekin Dokucu , Ronghui Zhou
IPC分类号： F01D21/14 , F04D27/02 , F04D29/66 , F01D25/06 , G01H1/00 , F01D21/04 , F02C9/00 , F01D21/00 , G01H13/00 , G05B13/04
摘要： A flutter control system for a turbine includes a processor. The processor is configured to detect blade flutter of a turbine. The blade flutter indicates that blades of the turbine are in a deflected position different from a nominal operating position. The processor is configured to control operational parameters of the turbine that reduce or eliminate the blade flutter to improve the reliability and efficiency of the turbine.
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公开(公告)号：US10809315B2
公开(公告)日：2020-10-20
申请号：US15708455
申请日：2017-09-19
发明人： Ronghui Zhou , Pekka Tapani Sipila , Dan Tho Lu , Xu Fu
摘要： A calibration apparatus is configured to calibrate a magnetostrictive sensor. The magnetostrictive sensor is configured to measure an object and comprises a sensing element positioned adjacent to the object. The calibration apparatus comprises an estimation device and a calibrator. The estimation device is configured to estimate at least one of a gap between the sensing element and the object and a temperature of the object to obtain at least one of an estimated gap and an estimated temperature, based on geometric information, an excitation signal and an output signal of the magnetostrictive sensor, and geometric information of the object. The calibrator is configured to reduce an effect on the output signal of the magnetostrictive sensor imposed by variations in the at least one of the gap and the temperature, based on the at least one of the estimated gap and the estimated temperature, to obtain a calibrated output signal.
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公开(公告)号：US10072635B2
公开(公告)日：2018-09-11
申请号：US14528101
申请日：2014-10-30
CPC分类号： F03D17/00 , F05B2270/334 , F05B2270/80 , F05B2270/807 , G01L3/02 , G01M15/14 , G01P3/00
摘要： A wind turbine including a plurality of blades, a micro inertial measurement unit installed on each blade and configured to sense a plurality of detection parameter signals at corresponding installation positions, and a monitoring system configured to monitor an operating state of the blades. The monitoring system includes a signal processing unit configured to obtain a processing parameter signal through calculation based on the detection parameter signals, a signal analyzing unit configured to analyze each analysis parameter signal, selected from the plurality of detection parameter signals and the processing parameter signal, to obtain a fault estimation signal, used to estimate whether a corresponding blade works in a fault state, and a fault evaluating unit configured to evaluate, based on a plurality of fault estimation signals, whether a corresponding blade fails or a probability that the corresponding blade fails.
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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：US11268494B2
公开(公告)日：2022-03-08
申请号：US16334622
申请日：2016-09-19
发明人： Zhuohui Tan , Bo Qu , Xiongzhe Huang , Xu Fu , Shuang Gu , Fernando Javier D'Amato
摘要： A wind turbine is provided. The wind turbine includes a mechanical system, an electrical system and a controller. The controller is for determining an electrical capability limit of the electrical system according at least in part to one or more operating conditions of the wind turbine and one or more environment conditions of a site of the wind turbine, comparing the electrical capability limit of the electrical system and a mechanical capability limit of the mechanical system, and controlling the electrical system to operate at the smaller one of the electrical capability limit and the mechanical capability limit. A method for controlling a wind turbine comprising a mechanical system and an electrical system is also provided.
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