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公开(公告)号：US20250059949A1
公开(公告)日：2025-02-20
申请号：US18720215
申请日：2022-12-14
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jesper Sandberg THOMSEN , Anders Druedahl THURLOW , Alexander Duncan GILES , Yi HAN
IPC: F03D7/02
Abstract: A method for controlling a wind turbine to decrease blade deflection during tower passage is disclosed. A blade flap moment of the wind turbine blades is measured. A blade flap moment of the wind turbine blades and a rotor tilt moment in a situation where the pitch offset has not been added are estimated, based on the measured blade flap moment. In the case that the estimated blade flap moment exceeds a first activation threshold value and the estimated rotor tilt moment exceeds a second activation threshold value, individual pitch angle adjustment of the wind turbine blades is initiated by adding a pitch offset, at azimuth angles within an azimuth adjustment region corresponding to tower passage of the wind turbine blades.
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公开(公告)号：US20250003382A1
公开(公告)日：2025-01-02
申请号：US18705625
申请日：2022-10-28
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Alexander Duncan GILES , Jesper Sandberg THOMSEN
IPC: F03D7/02
Abstract: The invention relates to adjusting pitch of rotor blades of a wind turbine. An acceleration signal is received from a wind turbine acceleration sensor and is indicative of side-to-side motion of the wind turbine tower. A first component in a fixed coordinate frame of the wind turbine is determined based on the received acceleration signal. The first component is indicative of a whirling mode of the wind turbine caused by edgewise vibrations of the rotor blades. A second component is generated based on the first component and is orthogonal to the first component. A control action is applied to obtain first and second control components for mitigating the whirling mode. An inverse m-blade coordinate transformation is applied to the first and second control components to obtain pitch reference offset values in a rotor coordinate frame of the wind turbine, which are used to adjust pitch of the rotor blades.
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公开(公告)号：US20220220936A1
公开(公告)日：2022-07-14
申请号：US17615060
申请日：2020-05-26
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jesper Sandberg THOMSEN , Morten Bro , Ian COUCHMAN
IPC: F03D7/02
Abstract: The present invention relates to a rotor control system for actuating pitch of pitch adjustable rotor blades of a wind turbine in order to reduce edgewise blade vibrations. The system comprises a pitch actuation unit being arranged to receive an edgewise load signal and apply m-blade coordinate transformations, such as the Coleman transformations, to the edgewise load signal. Based on a selected signal component at either a backward whirling frequency or a forward whirling frequency, a modified modification signal is obtained.
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公开(公告)号：US20190055923A1
公开(公告)日：2019-02-21
申请号：US16079772
申请日：2017-02-24
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Fabio CAPONETTI , Jesper Sandberg THOMSEN , Jacob Deleuran GRUNNET , Poul Brandt CHRISTENSEN
Abstract: A method for damping an oscillation of a tower of a wind turbine is disclosed, wherein a pitch angle of each of the one or more rotor blades is individually adjustable, the method comprising damping the oscillation of the tower by pitching each rotor blade individually according to tower damping pitch control signals, wherein each tower damping pitch control signal comprises a first periodic component, where a first frequency of the first periodic component corresponds to a frequency difference between a tower frequency of the oscillation of the tower and a rotor frequency of a rotation of the rotor, and where a second periodic component has been reduced or removed. A second frequency of the second periodic component corresponds to a frequency sum of the tower frequency and the rotor frequency.
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公开(公告)号：US20210006068A1
公开(公告)日：2021-01-07
申请号：US16956923
申请日：2018-11-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj GUPTA , Ravi KUMAR , Janakiraman SIVASANKARAN , Thomas Schmidt GRAU , Martin Ansbjerg KJÆR , Kouroush NAYEBI , John NIELSEN , Jesper Sandberg THOMSEN
Abstract: A method for operating a renewable energy power plant comprising a plurality of renewable energy generators. The method comprises: identifying a predetermined condition of the renewable energy power plant, of the grid, or of the connection between the renewable energy power plant and the grid, the predetermined condition indicating a weak grid interconnection between the renewable energy power plant and the grid; and controlling each renewable energy generator in an adaptive active power mode in response to recovery of the grid from a voltage deviation. The adaptive active power mode comprises: determining a thermal capacity of a chopper resistor of the renewable energy generator; calculating, based upon the determined thermal capacity, a limit level of rate of change of active power output that may be implemented by the renewable energy generator; and operating the renewable energy generator to output active power at the calculated rate of change limit level.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20180355848A1
公开(公告)日：2018-12-13
申请号：US15780733
申请日：2016-11-25
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Mu WEI , Martin Ansbjerg KJÆR , Kouroush NAYEBI , Jesper Sandberg THOMSEN , Eik HERBSLEB
IPC: F03D7/02 , F03D7/04 , G05B19/042 , H02J3/38
CPC classification number: F03D7/0284 , F03D7/026 , F03D7/0272 , F03D7/048 , F05B2220/706 , F05B2270/1033 , F05B2270/309 , F05B2270/327 , F05B2270/335 , G05B19/042 , G05B2219/2619 , H02J3/386 , Y02E10/723 , Y02E10/763
Abstract: A method and associated control arrangement are disclosed for controlling a power output of a wind power plant (WPP) according to a predetermined power ramp rate limit, the WPP comprising a plurality of wind turbine generators (WTGs). The method comprises receiving a first signal indicating that a first WTG is in a ready state to begin producing power. The method further comprises, upon determining that, responsive to the received first signal, beginning power production of the first WTG at a predetermined default power ramp rate would cause the power output of the WPP to exceed the power ramp rate limit, controlling power production of the first WTG using at least one of: a first delay, a power ramp rate reference less than the default power ramp rate, and a power reference less than a nominal power output of the first WTG.
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公开(公告)号：US20180010577A1
公开(公告)日：2018-01-11
申请号：US15547199
申请日：2016-01-27
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Fabio CAPONETTI , Jesper Sandberg THOMSEN , Jacob Deleuran GRUNNET
CPC classification number: F03D7/028 , F03D7/0224 , F03D7/0272 , F03D7/0276 , F03D7/046 , F03D9/25 , F05B2270/101 , F05B2270/1032 , F05B2270/1033 , F05B2270/20 , F05B2270/327 , Y02E10/723
Abstract: The invention relates to a method for controlling a wind turbine in partial and full load. In order to avoid disadvantages of switching between partial and full load controllers, the wind turbine control system is configured so that both the partial and full load controller provides control action during partial and full load. For that purpose, the partial and full load controllers are configured with variable gains, wherein gain scheduling is performed so that the gain of partial load controller is larger than the gain of the full load controller during partial load and vice verso so that the gain of the full load controller is larger than the gain of the partial load controller during full load.
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公开(公告)号：US20170152836A1
公开(公告)日：2017-06-01
申请号：US15321817
申请日：2015-06-22
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Martin Ansbjerg KJÆR , Jesper Sandberg THOMSEN
IPC: F03D7/02 , G05B19/402 , F03D17/00 , F03D7/04 , F03D1/06
CPC classification number: F03D7/0224 , F03D1/0675 , F03D7/028 , F03D7/047 , F03D17/00 , F05B2220/706 , F05B2270/1033 , F05B2270/309 , F05B2270/32 , F05B2270/335 , F05B2270/504 , F05B2270/703 , G05B19/402 , G05B2219/2619 , Y02E10/721 , Y02E10/723 , Y02E10/725
Abstract: The present invention relates to control of the power output of wind turbine generator that operates in derated mode to generate a produced power output level lower than an available power level. A pitch system 48 sets the blade pitch of a rotor to a pitch value based on the received power reference signal 40. A power system 43 controls the produced power output power level of the wind turbine to the requested power output level. Moreover, the blade pitch of the rotor is further controlled by a pitch feedback control loop 47 that modifies the pitch value based on a difference between the produced power output level 46 and the requested power output level 40.
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公开(公告)号：US20160230741A1
公开(公告)日：2016-08-11
申请号：US15022876
申请日：2014-09-16
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Per BRATH , Martin Ansbjerg KJÆR , Jesper Sandberg THOMSEN
CPC classification number: F03D7/0224 , F03D1/0666 , F03D7/043 , F03D7/048 , F03D17/00 , Y02E10/721 , Y02E10/723
Abstract: The invention relates to a method of controlling a wind turbine, the wind turbine comprising wind turbine blades attached to a rotor hub and a control system for pitching the blades relative to the hub. The method comprises providing wake sectors assigned to different wind directions and providing a normal pitch schedule to control an output parameter of the wind turbine (e.g. power, rotational speed), comprising pitch reference values as a function of the wind speed and at least one of the parameters of thrust coefficient C, and axial induction factor a. Further, is provided a modified pitch schedule to control a modified output parameter of the wind turbine, comprising pitch reference values in dependence of the wind speed and at least one modified parameter of the thrust coefficient and/or the axial induction factor. Upon receiving indications of a wind speed and a wind direction at the wind turbine is determined a pitch reference value for the wind turbine blades according to the normal pitch schedule if the wind direction falls outside the wake sector and otherwise according to the modified pitch schedule. The wind turbine is then controlled according to the pitch reference value. The invention further relates to a method of controlling the wind turbines in a wind park, wherein each wind turbine in the park is controlled locally according to the above mentioned control method.
Abstract translation: 本发明涉及一种控制风力涡轮机的方法，所述风力涡轮机包括附接到转子毂的风力涡轮机叶片和用于相对于所述毂倾斜叶片的控制系统。 该方法包括提供分配给不同风向的尾流扇区，并且提供正常俯仰调度以控制风力涡轮机的输出参数（例如功率，转速），包括作为风速的函数的俯仰参考值和至少一个 推力系数C的参数和轴向感应系数a。 此外，提供了一种修改的桨距计划，用于控制风力涡轮机的改进的输出参数，包括根据风速和推力系数和/或轴向感应系数的至少一个修改参数的俯仰参考值。 在风力涡轮机上接收到风速指示和风向的指示如果风向落在尾流扇区之外，则根据正常俯仰调度方式确定风力涡轮机叶片的俯仰参考值，或者根据修改的俯仰调度来确定。 然后根据俯仰基准值来控制风力涡轮机。 本发明还涉及一种控制风力发电场中的风力涡轮机的方法，其中根据上述控制方法对园区中的每个风力涡轮机进行局部控制。
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公开(公告)号：US20210156357A1
公开(公告)日：2021-05-27
申请号：US16954178
申请日：2018-12-13
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Fabio CAPONETTI , Jesper Sandberg THOMSEN
Abstract: A method for wind turbine tower damping is disclosed, as well as an associated controller and wind turbine. The method comprises generating, using at least a first sensor signal, a first pitch reference signal for one or more rotor blades of a wind turbine during partial load operation. The method further comprises determining, using at least a second sensor signal, dynamic state information for a tower of the wind turbine. The method further comprises generating a second pitch reference signal by adapting the first pitch reference signal using the dynamic state information. The method further comprises selecting a maximum pitch reference signal from the second pitch reference signal and a saturation pitch reference signal. The method further comprises communicating the maximum pitch reference signal to control a pitch of the one or more rotor blades.
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