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公开(公告)号：US10907617B2
公开(公告)日：2021-02-02
申请号：US16313961
申请日：2017-06-29
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Fabio Caponetti , Martin Ansbjerg Kjaer
Abstract: A diagnostic system for use in a wind turbine yaw system, comprising: a tower motion sensor configured to output a signal indicative of tower oscillation, in particular though not exclusively side to side tower oscillation, and a diagnostic module configured to: analyse the tower motion sensor signal to identify frequency content of the signal that is not associated with the tower oscillation; and correlate the identified frequency content with the operation of the yaw system thereby to determine that the yaw system requires maintenance. Beneficially the invention provides that the health of the yaw system can be determined by analysing the oscillatory movement of the tower as measured by a tower motion sensor installed at a suitable location for example at the top of the tower or in the nacelle for example.
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公开(公告)号：US10590912B2
公开(公告)日：2020-03-17
申请号：US15103126
申请日：2014-12-03
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Fabio Caponetti , Martin Brødsgaard , Thomas Krüger
Abstract: The invention presents a method for operating a horizontal axis wind turbine, the wind turbine comprising a tower and a rotor with at least one rotor blade, the rotor being connected to the tower, and being adapted to drive a generator connected to a utility grid, wherein a pitch angle of each rotor blade is adjustable, the method comprising detecting, when the wind turbine is in an idling power producing situation in relation to the utility grid, a tower oscillation, and controlling, when the wind turbine is in the idling power producing situation, the pitch angle of the at least one rotor blade so as to produce aerodynamic forces counteracting the detected tower oscillation.
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公开(公告)号：US10415548B2
公开(公告)日：2019-09-17
申请号：US15325056
申请日：2015-06-05
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Fabio Caponetti , Ian Couchman , Jacob Deleuran Grunnet , Ilias Konstantinos Ariston , Poul Brandt Christensen
Abstract: The invention relates to a method for determining dynamic parameters associated with damping properties of a wind turbine. The method involves active excitation of tower oscillations by adjusting the pitch or rotor torque. After the active excitation, the parameters can be determined from the passive decay of the excited oscillations. Alternatively, the oscillations can be actively damped, so that the parameters can be determined from the active decay of the excited oscillations. The method for promoting oscillations may be triggered in response to different events or in response to predetermined times for determining the actual dynamic parameters.
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公开(公告)号：US12146470B2
公开(公告)日：2024-11-19
申请号：US17290979
申请日：2019-10-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Søren Dalsgaard , Julio Xavier Vianna Neto , Kim Hylling Sørensen , Poul Brandt Christensen , Fabio Caponetti
Abstract: A method of charging an energy storage system, such as a battery, a capacitor, or a super capacitor, using a wind turbine is described. The method comprises establishing if turbine power production can be increased and establishing if the energy storage system is capable of taking a charge. If both conditions are met, the power generated by the wind turbine is increased above a rated power of the wind turbine and the additional power is used to charge the energy storage systems. A method of control is also disclosed.
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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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Patent Agency Ranking
公开(公告)号：US11692527B2
公开(公告)日：2023-07-04
申请号：US17142139
申请日：2021-01-05
Applicant: VESTAS WIND SYSTEMS A/S
CPC classification number: F03D7/045 , F03D7/0224 , F05B2260/8211 , F05B2260/84 , F05B2270/20 , F05B2270/404
Abstract: The invention provides a method for controlling a wind turbine, including predicting behaviour of one or more wind turbine components such as a wind turbine tower over a prediction horizon using a wind turbine model that describes dynamics of the one or more wind turbine components or states. The method includes determining behavioural constraints associated with operation of the wind turbine, wherein the behavioural constraints are based on operational parameters of the wind turbine such as operating conditions, e.g. wind speed. The method includes using the predicted behaviour of the one or more wind turbine components in a cost function, and optimising the cost function subject to the determined behavioural constraints to determine at least one control output, such as blade pitch control or generator speed control, for controlling operation of the wind turbine.
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公开(公告)号：US11098695B2
公开(公告)日：2021-08-24
申请号：US16494643
申请日：2018-03-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Thomas S. Bjertrup Nielsen , Fabio Caponetti , Keld Hammerum
Abstract: A wind turbine comprising a tower, a nacelle, a rotor including a plurality of blades, an electrical generator operatively coupled to the rotor, and a control system. The control system comprises: a sensing system operable to output a signal indicative of the torsional oscillation frequency of the nacelle; a torsional damping module configured to monitor the torsional oscillation signal and to determine one or more blade pitch command signals for damping the torsional oscillation of the tower, and a filter module configured to receive the one or more blade pitch command signals as inputs and to output a respective one or more modified blade pitch command signals, wherein the filter module is configured to filter the one or more blade pitch command input signals to exclude frequency components greater than the torsional oscillation frequency. Aspects of the invention also relate to a method, a computer program software product and a controller for implementing the method.
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公开(公告)号：US10890159B2
公开(公告)日：2021-01-12
申请号：US16326301
申请日：2017-08-14
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Fabio Caponetti , Keld Hammerum , Jesper Lykkegaard Neubauer
Abstract: A method is provided for controlling the shutdown of a wind turbine of the type having a rotor, the rotor including one or more wind turbine blades. The method includes dynamically determining a rotor speed reference; obtaining a measure of the rotor speed of the rotor; determining an error between the rotor speed reference and the rotor speed of the rotor; and controlling a pitch of one or more of the wind turbine blades based on the determined error. A corresponding wind turbine controller and a wind turbine including such a controller are also provided.
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公开(公告)号：US10302067B2
公开(公告)日：2019-05-28
申请号：US14766380
申请日：2014-02-04
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Eik Herbsleb , Fabiano Daher Adegas , Poul Brandt Christensen , Robert Bowyer , Fabio Caponetti , Ian Couchman , Lars Finn Sloth Larsen
Abstract: The invention relates to a controller configured to determine one or more future values of blade control references and/or a generator control references for a wind turbine generator. The first of the future values of the control references are used for control purposes. The future control references are determined from a physical model of a system of the wind turbine generator by solving an optimization problem which includes at least one cost function and at least one constraint.
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公开(公告)号：US11530683B2
公开(公告)日：2022-12-20
申请号：US17251600
申请日：2019-06-07
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Christian Jeppesen , Fabio Caponetti
Abstract: Embodiments herein describe a hydraulic pitch system where a velocity (e.g., the velocity of a hydraulic cylinder or the piston rod in the cylinder) is fed forward and combined with a setting outputted by a pitch controller. The velocity of the hydraulic cylinder is derived from the reference pitch angle or a continuous pitch signal (e.g., a cyclic pitch or ramp rate) in the control system. In either case, the velocity can be determined by monitoring the change in the reference pitch angle or the continuous pitch signal. Using a gain control, the velocity is converted into a position setting of the hydraulic pitch system (e.g., a spool setting in a valve) which is combined with another position setting generated by the pitch controller.
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