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公开(公告)号：US12173694B2
公开(公告)日：2024-12-24
申请号：US18260466
申请日：2022-01-03
Applicant: VESTAS WIND SYSTEMS A/S
Abstract: The present invention relates to control of a wind turbine to reduce structural loading due to vibrations of the blades along the edgewise direction. A rotor control system for actuating pitch of pitch-adjustable rotor blades of a wind turbine is disclosed. Pitch modification signals are determined based on edgewise load signals for each of the rotor blades. The edgewise load signal are coordinated transformed and input into a primary whirling controller unit to provide whirling signal components which can be used for determining the pitch modification signals.
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公开(公告)号：US11319925B2
公开(公告)日：2022-05-03
申请号：US16954186
申请日：2018-12-04
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 determining, using one or more sensor signals, dynamic state information for a tower of a wind turbine during power production, wherein the dynamic state information comprises a tower frequency. The method further comprises determining at least one control loop gain value using the tower frequency, and generating, using the at least one control loop gain value, one or more control signals for controlling a rotational speed of a rotor of the wind turbine.
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公开(公告)号：US10669990B2
公开(公告)日：2020-06-02
申请号：US15735513
申请日：2016-06-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Martin Ansbjerg Kjær , Jesper Sandberg Thomsen , Jacob Krogh Kristoffersen , Jacob Deleuran Grunnet , Eik Herbsleb
IPC: F03D7/02
Abstract: The invention relates to a control system for a wind turbine. The wind turbine comprises a power generator configured to generate power dependent on a power reference and a pitch system configured to adjust the pitch of a blade of the wind turbine dependent on a pitch request. The control system comprises a controller configured to determine the pitch request dependent on an adjustable gain. A gain scheduler comprised by the control system is configured to set the adjustable gain to an increased gain value if a rate of change of the power reference, e.g. an external power reference, exceeds a threshold.
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公开(公告)号：US10557456B2
公开(公告)日：2020-02-11
申请号：US15039769
申请日：2014-11-27
Applicant: VESTAS WIND SYSTEMS A/S
IPC: G05D3/12 , G05D5/00 , G05D9/00 , G05D11/00 , G05D17/00 , F03D7/02 , F03D1/06 , F03D7/04 , G05B19/406
Abstract: Embodiments of the present disclosure generally relate to apparatus and methods for preventing power dips associated with power ramping in wind turbines. One embodiment of the present disclosure provides a method for stabilizing power output in a wind turbine, which includes tracking a rate of change in an external reference, such as an external power reference or external torque reference, computing a feed-forward pitch angle adjustment according to the rate of change in the external power reference, and sending the feed-forward pitch angle adjustment to the wind turbine to adjust a pitch angle of rotor blades simultaneously with adjusting power output according to the external reference.
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公开(公告)号：US10451038B2
公开(公告)日：2019-10-22
申请号：US15738170
申请日：2016-06-22
Applicant: VESTAS WIND SYSTEMS A/S
Abstract: The present invention relates to a method for controlling a wind turbine, the wind turbine comprises a rotor connected to a generator, and a rotational speed controller configured to control a speed of the rotor in response to a generator speed reference, and a power controller to control an electric power production, the method comprises the step for receiving a boost command to request a power boost event, so to increase the electrical power production, and imposing a dead band with a dead zone value limit to the rotational speed controller, and wherein the dead band imposes a zero signal to be send to the rotational speed controller, when a speed error is within the dead zone value limit and wherein the dead band imposes an error signal to be send to the rotational speed controller, when a speed error is greater than the dead zone value limit, the error signal being a function of the speed error and the dead zone value limit. The invention also relates to a wind power plant comprising a power plant controller and at least one wind turbine with a control system according to the above mentioned method.
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Patent Agency Ranking
公开(公告)号：US10359026B2
公开(公告)日：2019-07-23
申请号：US15761549
申请日：2016-09-20
Applicant: Vestas Wind Systems A/S
Abstract: A method and associated control arrangement are disclosed for controlling a de-rated power output of a wind turbine generator, where the wind turbine generator is associated with a predetermined power ramp rate upper limit and operating with a de-rated rotor speed. The method includes ramping the power output from an initial power level to a target power level during a ramping interval. During a first portion of the ramping interval, the power output is ramped at a first power ramp rate less than the power ramp rate upper limit. The method further includes ramping the rotor speed to a predetermined rotor speed value contemporaneously with ramping the power output during the first portion of the ramping interval. The first power ramp rate is determined such that a difference between the power output and the target power level is monotonically decreasing during the entirety of the ramping interval.
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公开(公告)号：US20190055924A1
公开(公告)日：2019-02-21
申请号：US15761549
申请日：2016-09-20
Applicant: Vestas Wind Systems A/S
CPC classification number: F03D7/0276 , F03D1/0675 , F03D7/0212 , F03D7/028 , F03D7/048 , F05B2270/1033 , F05B2270/309 , F05B2270/32 , F05B2270/327 , Y02E10/723
Abstract: A method and associated control arrangement are disclosed for controlling a de-rated power output of a wind turbine generator, where the wind turbine generator is associated with a predetermined power ramp rate upper limit and operating with a de-rated rotor speed. The method includes ramping the power output from an initial power level to a target power level during a ramping interval. During a first portion of the ramping interval, the power output is ramped at a first power ramp rate less than the power ramp rate upper limit. The method further includes ramping the rotor speed to a predetermined rotor speed value contemporaneously with ramping the power output during the first portion of the ramping interval. The first power ramp rate is determined such that a difference between the power output and the target power level is monotonically decreasing during the entirety of the ramping interval.
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公开(公告)号：US11421652B2
公开(公告)日：2022-08-23
申请号：US17054154
申请日：2019-05-07
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jesper Sandberg Thomsen , Keld Hammerum
IPC: F03D7/02
Abstract: The present invention relates to a rotor control system for actuating pitch of pitch adjustable rotor blades in order to reduce vibrations of a wind turbine element, e.g. tower vibrations. A pitch modification signal is determined which is based on an m-blade coordinate transformation, such as the Coleman transformation. The m-blade coordinate transformation taking as input a first signal and a second signal. The second signal is determined by filtering the first signal with a signal filter with a quadrature phase shift filter phase response.
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公开(公告)号：US11248584B2
公开(公告)日：2022-02-15
申请号：US16463811
申请日：2017-11-23
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jesper Sandberg Thomsen , Ian Couchman
IPC: F03D7/02
Abstract: A wind turbine system comprising a nacelle mounted on a tower, a rotor having a plurality of blades and a boundary layer control system configured to control airflow through blade surface openings in each of the blades. The wind turbine system includes a control system configured to perform at least one of the following: to monitor an operational speed parameter of the wind turbine, and to activate the boundary layer control system if it is determined that the 1 operational speed parameter exceeds a predetermined speed parameter threshold; to monitor tower motion and to activate the boundary layer control system based on a determination of excessive tower motion; to monitor for a wind turbine shutdown condition, and to activate the boundary layer control system if it is determined that a wind turbine shutdown condition has been identified; and to monitor the aerodynamic loads on the blades, and to activate the boundary layer control system also based on a determination of excessive blade loads. The system thereby provides an approach to activating and deactivating the boundary layer control system to reduce operational risk to the wind turbine.
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10.发明授权公开(公告)号：US10968890B2
公开(公告)日：2021-04-06
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 , H02J3/38 , G05B19/042
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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