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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
发明人： Eik Herbsleb , Fabiano Daher Adegas , Poul Brandt Christensen , Robert Bowyer , Fabio Caponetti , Ian Couchman , Lars Finn Sloth Larsen
摘要： 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：US11300101B2
公开(公告)日：2022-04-12
申请号：US16440451
申请日：2019-06-28
摘要： The present invention relates to a method for controlling a power plant for reducing spectral disturbances in an electrical grid being operative connected to the power plant, the power plant comprising a plant controller, at least one wind turbine and at least one auxiliary energy source, wherein the at least one wind turbine comprises a rotor adapted to drive a power generator via a shaft, wherein the generator is connectable with the electrical grid, and at least one damping controller configured to compensate structural oscillations of the wind turbine by controlling a torque on the shaft, wherein the at least one damping controller is capable of setting a limit of a control action on the shaft, the method comprising the steps of determining disturbance information for the power plant in the form of an electrical disturbance at a point of measurement electrically connected to the power plant, determining set-points for the at least one auxiliary energy source based on the determined disturbance information, and assigning the set-points to the at least one auxiliary energy source in order to counteract at least part of the electrical disturbance at the point of measurement using at least part of an available amount of energy from the at least one auxiliary energy source.
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公开(公告)号：US10920747B2
公开(公告)日：2021-02-16
申请号：US15767258
申请日：2016-10-11
发明人： Martin Ansbjerg Kjær , Frank Møller Hansen , Jacob Hviid Nielsen , Jesper Lykkegaard Neubauer , Poul Brandt Christensen , Fabio Caponetti , Christian Skallebæk , Robert Grøn-Stevens , Kasper Zinck Østergaard
IPC分类号： F03D7/02
摘要： There is provided a method for controlling a hydraulic pitch force system (220) so as to reduce or eliminate a decrease in hydraulic oil pressure (241) if a hydraulic system parameter value is outside a hydraulic system parameter range, the method comprising: Obtaining (690) the hydraulic system parameter value, and operating the hydraulic pitch force system (220) according to a reduced mode (692) if the hydraulic system parameter value is outside the hydraulic system parameter range, wherein in the reduced mode one or more pitch based activities are reduced (694) or suspended. An advantage thereof may be that it enables keeping the wind turbine in production in certain instances rather than shutting down the wind turbine. In aspects, there is furthermore presented a computer program product, a pitch control system (250) and a wind turbine (100).
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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
发明人： Fabio Caponetti , Ian Couchman , Jacob Deleuran Grunnet , Ilias Konstantinos Ariston , Poul Brandt Christensen
摘要： 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：US10378513B2
公开(公告)日：2019-08-13
申请号：US14916618
申请日：2014-09-03
发明人： Martin Ansbjerg Kjær , Peter Koldkjær , Rasmus Molgaard Hviid Knudsen , Maryam Soleimanzadeh , Martin Møller Sørensen , Ali Zaib , Arvishwa Kumar Singh , Poul Brandt Christensen , Michael Houlind Jensen
摘要： To efficiently nm a wind turbine in varying wind speeds, the wind turbine may be configured to switch between two different electrical configurations that offer different efficiencies depending on wind speed. For example, a star configuration may be preferred during low wind speeds while a delta configuration is preferred for high wind speeds. Before switching, the power output by the turbine's generator may be driven to zero. Doing so, however, removes load from the rotor blades which cause the rotor speed to increase. Instead, the rotor speed may be controlled such that the speed stays at or above the speed of the rotor immediately before the generator power is ramped down. Maintaining rotor speed at or slightly above the current speed while switching between electrical configurations may mitigate the torque change experienced by the turbine and reduce the likelihood of structural failure.
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公开(公告)号：US20160169200A1
公开(公告)日：2016-06-16
申请号：US15045800
申请日：2016-02-17
CPC分类号： F03D7/0272 , F03D1/06 , F03D7/0292 , F03D7/043 , F03D9/25 , F03D13/20 , F05B2270/1032 , F05B2270/331 , Y02E10/721 , Y02E10/723
摘要： A method of controlling a wind turbine having a rotor and a generator for producing power, the wind turbine being designed for a nominal load, the method comprising the steps of: determining a current load acting on at least a part of the wind turbine; calculating a load error, the load error representing the difference between the nominal load and the current load; controlling the wind turbine based on the load error; wherein the step of controlling the wind turbine comprises altering a parameter of the wind turbine so that the power or torque produced by the generator is altered.
摘要翻译： 一种控制具有用于产生动力的转子和发电机的风力涡轮机的方法，所述风力涡轮机被设计为标称负载，所述方法包括以下步骤：确定作用在所述风力涡轮机的至少一部分上的电流负载; 计算负载误差，负载误差表示标称负载和当前负载之间的差异; 根据负载误差控制风力发电机组; 其中控制所述风力涡轮机的步骤包括改变所述风力涡轮机的参数，使得由所述发电机产生的功率或扭矩改变。
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公开(公告)号：US11795911B2
公开(公告)日：2023-10-24
申请号：US17416989
申请日：2019-12-16
CPC分类号： F03D7/0296 , F03D7/045 , F05B2260/821 , F05B2260/84 , F05B2270/331 , F05B2270/334
摘要： Aspects of the present invention relate to controlling a wind turbine having a tower damping system actuable to control components of vibrational movement of the tower, a side-side component of a vibrational movement of the tower in a horizontal plane; and a fore-aft component of the vibrational movement of the tower in the horizontal plane are determined; and a control signal based on the side-side and fore-aft components is determined such that the tower damping system produces a force that increases or decreases the vibrational movement of the tower such that the side-side and fore-aft components are substantially equal.
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公开(公告)号：US11572865B2
公开(公告)日：2023-02-07
申请号：US17259473
申请日：2019-07-03
IPC分类号： F03D7/02
摘要： The present invention relates to a method of controlling a wind turbine comprising a tower supporting a rotor comprising a plurality of pitch-adjustable rotor blades. The method includes obtaining a movement signal indicative of a lateral movement of the tower; determining a pitch modulation signal, based on the movement signal, for actuating a rotor blade to produce a desired horizontal force component to counteract the lateral movement of the tower; determining a radial force component acting on a rotor blade; determining a phase offset parameter for the rotor blade based on the radial force component; and, transforming the pitch modulation signal into a pitch reference offset signal for the rotor blade based on the phase offset parameter.
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公开(公告)号：US11038400B2
公开(公告)日：2021-06-15
申请号：US16720128
申请日：2019-12-19
摘要： A method of controlling a wind turbine is provided. The method comprises providing a primary power reference signal and a secondary power reference signal. The primary power reference signal is limited according to a primary signal limit. The secondary power reference signal is limited according to a secondary signal limit. The primary power reference signal and the secondary power reference signal are combined to provide a combined power reference signal, which is provided to a power or torque control system of the wind turbine.
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公开(公告)号：US10982651B2
公开(公告)日：2021-04-20
申请号：US16079772
申请日：2017-02-24
摘要： 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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