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公开(公告)号：US12000381B2
公开(公告)日：2024-06-04
申请号：US17779426
申请日：2020-11-24
Applicant: VESTAS WIND SYSTEMS A/S
IPC: F03D7/02
CPC classification number: F03D7/028 , F03D7/0224
Abstract: A method of controlling a wind turbine is provided, comprising identifying an out-of-vertical load acting in a first direction on the wind turbine. A direction of a wind load acting on the wind turbine is determined. If there is a degree of alignment between the direction of the wind load and the first direction, the wind turbine is controlled to reduce the wind load.
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公开(公告)号：US11578695B2
公开(公告)日：2023-02-14
申请号：US16855159
申请日：2020-04-22
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jacob Deleuran Grunnet , Tobias Gybel Hovgaard , Jan-Willem Van Wingerden , Sebastiaan Mulders
Abstract: Techniques for controlling rotor speed of a wind turbine. One technique includes defining a system model describing resonance dynamics of a wind turbine component, such as a wind turbine tower, where the system model has a nonlinear input term, e.g. a periodic forcing term. A transform is applied to the system model to obtain a transformed model for response oscillation amplitude of the wind turbine component, where the transformed model has a linear input term. A wind turbine model describing dynamics of the wind turbine is then defined, and includes the transformed model. A model-based control algorithm, e.g. model predictive control, is applied using the wind turbine model to determine at least one control output, e.g. generator torque, and the control output is used to control rotor speed of the wind turbine.
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公开(公告)号：US11365718B2
公开(公告)日：2022-06-21
申请号：US16619691
申请日：2018-05-30
Applicant: VESTAS WIND SYSTEMS A/S
Abstract: Embodiments are generally directed to techniques for operating a wind turbine of a wind power plant. An associated method comprises determining, using one or more sensors of the wind turbine, a first power production level of the wind turbine; determining, during an unconstrained operation of the wind turbine, one or more available power correction factors using the first power production level; determining, using one or more wind power parameters applied to a predefined model for estimating an available power of the wind turbine, an estimated available power value; adjusting the estimated available power value using the one or more available power correction factors to produce the available power value; and controlling, using the available power value, the wind turbine to produce a second power production level.
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公开(公告)号：US11002250B2
公开(公告)日：2021-05-11
申请号：US16076564
申请日：2017-02-10
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jacob Deleuran Grunnet , Damien Castaignet , Keld Hammerum , Kasper Zinck
Abstract: A method of controlling a wind turbine is described. The method comprises calculating a current wear rate for each of the main bearing of a turbine rotor and the blade bearings of rotor blades mounted on the turbine rotor, and calculating a blade pitch adjustment of the rotor blades to achieved a desired ratio between main bearing wear and blade bearing wear in dependence on the calculated current wear rates of the main bearing and the blade bearings.
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公开(公告)号：US10808682B2
公开(公告)日：2020-10-20
申请号：US16063576
申请日：2016-12-12
Applicant: VESTAS WIND SYSTEMS A/S
Abstract: There is presented a wind turbine system, wherein the wind turbine system is comprising a support structure, a plurality of wind turbine modules mounted to the support structure wherein each of the plurality of wind turbine modules comprises a rotor, and wherein the wind turbine system further comprises a control system, wherein the control is arranged to execute a wind turbine system transition from a first system operational state of the wind turbine system to a second system operational state of the wind turbine system, and wherein the wind turbine system transition is performed by executing a plurality of wind turbine module transitions from a first module operational state of a wind turbine module to a second module operational state of the wind turbine module wherein the plurality of wind turbine module transitions are distributed in time with respect to each other.
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Patent Agency Ranking
公开(公告)号：US10364797B2
公开(公告)日：2019-07-30
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
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：US10273938B2
公开(公告)日：2019-04-30
申请号：US15735524
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
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 request. The control system comprises a ramp rate limiter configured to restrict a rate of change of the power request according to a rate of change limit and configured to determine the rate of change limit dependent on a power difference between the power request and an estimated available wind power.
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公开(公告)号：US12049869B2
公开(公告)日：2024-07-30
申请号：US18010771
申请日：2021-06-10
Applicant: VESTAS WIND SYSTEMS A/S
IPC: F03D7/02
CPC classification number: F03D7/0224 , F05B2270/1033 , F05B2270/328
Abstract: A method of controlling a wind turbine blade of a wind turbine comprising: providing data comprising a plurality of pitch angles of the wind turbine blade and corresponding expected power coefficients for the wind turbine, each pitch angle corresponding to a maximum expected power coefficient for a degradation state of the wind turbine blade; obtaining a current power coefficient of the wind turbine; determining a desired pitch angle for the wind turbine blade, the desired pitch angle being equal to a pitch angle from the dataset corresponding to an expected power coefficient equal to the current power coefficient; and changing a pitch angle of the wind turbine blade to the desired pitch angle.
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公开(公告)号：US11811354B2
公开(公告)日：2023-11-07
申请号：US17601385
申请日：2020-03-24
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jacob Deleuran Grunnet
CPC classification number: H02P9/04 , H02J3/381 , H02P9/02 , H02J2300/28
Abstract: A method of controlling a wind turbine connected to an electrical grid is provided. The method comprises generating a turbine control reference signal and a grid control reference signal. The turbine control reference signal is provided to a machine side unit of a power or torque control system of the turbine to control the amount of energy generated by the turbine. The grid control reference signal is provided to a line side unit of the power or torque control system to control the amount of energy transferred to the electrical grid based on the grid control reference signal.
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公开(公告)号：US11674500B2
公开(公告)日：2023-06-13
申请号：US16961111
申请日：2019-01-08
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jacob Deleuran Grunnet , Anders Steen Nielsen
CPC classification number: F03D17/00 , F03D7/0292 , F03D7/048 , F05B2260/80 , F05B2270/1033 , F05B2270/1095 , F05B2270/331 , F05B2270/332
Abstract: A method for controlling a wind energy farm is disclosed. A wake state of the wind energy farm is determined, including determining wake chains defining wake relationships among the wind turbines of the wind farm under the current wind conditions. For at least one of the wind turbines of the wind energy farm, a lifetime usage is estimated, based on an accumulated load measure for the wind turbine. In the case that the estimated lifetime usage is below a predefined lifetime usage limit, the wind turbine is operated in an overrated state, while monitoring wake effects at each of the wind turbines. In the case that a downstream wind turbine detects wake effects above a predefined wake threshold level, at least one wind turbine having an upstream wake relationship with the downstream wind turbine is requested to decrease the generated wake, e.g. by decreasing power production.
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