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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：US20220228556A1
公开(公告)日：2022-07-21
申请号：US17623047
申请日：2020-06-18
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Karthik VASUDEVAN , Ian COUCHMAN
Abstract: The invention provides a method of shutting down a wind turbine, the wind turbine comprising a rotor with a plurality of blades; and a generator system coupled to the rotor. The method comprises: operating the generator system to generate electrical power and apply a load torque to the rotor; controlling the electrical power generated with a power reference signal; determining that a shutdown of the wind turbine is required; in response to the determination that a shutdown of the wind turbine is required, changing the power reference signal so as to increase the electrical power generated thereby slowing the rotor; determining that a speed of the rotor has reduced below a threshold; and in response to the determination that the speed of the rotor has decreased below the threshold, changing a pitch of the blades to further slow the rotor.
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公开(公告)号：US20170226988A1
公开(公告)日：2017-08-10
申请号：US15518992
申请日：2015-10-08
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Martin Ansbjerg KJÆR , Fabio CAPONETTI , Ian COUCHMAN , Jesper Sandberg THOMSEN , Thomas KRÜGER , Jorge Martinez GARCIA
CPC classification number: F03D7/0284 , F03D7/0296 , F03D7/048 , F05B2260/96 , F05B2260/964 , F05B2270/334 , F05B2270/337 , H02K7/183 , H02P9/04 , Y02E10/723
Abstract: The invention relates to a method for wind turbine generators for reducing electrical disturbances in the form of power variations which are caused by damping controllers arranged the compensate structural oscillations by inducing shaft torque variations. The shaft torque variations are generated by imposing corresponding variations in a generator set-point, e.g. a power or torque set-point. Variations in the generator set-point cause undesired variations in the power injected to the grid by one or more wind turbine generators. According to an embodiment of the invention the electrical disturbances may be reduced by limiting a damping controller's control action. The amount of limitation or restriction of the damping controller may be determined on basis on electrical disturbance information determined from power measured e.g. at a location on the grid.
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公开(公告)号：US20170184077A1
公开(公告)日：2017-06-29
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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5.发明申请公开(公告)号：US20190285051A1
公开(公告)日：2019-09-19
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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Patent Agency Ranking
公开(公告)号：US20160377058A1
公开(公告)日：2016-12-29
申请号：US15102955
申请日：2014-12-05
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Fabio CAPONETTI , Thomas KRÜGER , Ian COUCHMAN , Ilias Konstantinos ARISTON , Martin BRØDSGAARD , Jacob Deleuran GRUNNET , Jesper Sandberg THOMSEN , Peter Mortensen SIGFRED
CPC classification number: F03D7/0296 , F03D7/0224 , F03D7/024 , F03D7/0272 , F03D7/043 , F03D9/25 , F05B2220/706 , F05B2240/2211 , F05B2260/821 , F05B2260/964 , F05B2270/334 , Y02E10/723 , Y02E10/725
Abstract: The present invention refers to a method for operating a wind turbine, the wind turbine particularly comprising a tower and a rotor with rotor blades. The pitch angles of the rotor blades are adjusted to generate a force on the rotor and the tower. The force is adjusted to counteract and damp an oscillation. The adjustment is enabled by an activation decision unit, if the activation decision unit decides that certain parameters characterising the oscillation or loads of the tower indicate a requirement and/or if the activation decision unit determines that the generated force is sufficient to counteract an oscillation of the tower. In various embodiments the parameters characterising the oscillation or loads of the tower comprise current oscillations and their amplitude, an estimate of loads incurred in the turbine structure, an estimate whether damping in the near future might become necessary, an indication whether a different oscillation damping algorithm than individual blade pitch control is currently performing, and an indication whether a wind speed is above a certain portion of a rated wind speed.
Abstract translation: 本发明涉及一种用于操作风力涡轮机的方法，所述风力涡轮机特别地包括塔和具有转子叶片的转子。 调整转子叶片的桨距角以在转子和塔上产生力。 调节力以抵消和阻尼振荡。 如果激活判定单元确定表征塔的振荡或负载的某些参数指示要求，和/或如果激活判定单元确定所产生的力足以抵消振荡的振荡 塔。 在各种实施例中，表征塔的振荡或负载的参数包括电流振荡及其振幅，涡轮机结构中引起的负载的估计，是否需要在不久的将来阻尼的估计，是否有不同的振荡阻尼算法 比单个叶片桨距控制正在执行，以及风速是否高于额定风速的某一部分的指示。
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公开(公告)号：US20160305402A1
公开(公告)日：2016-10-20
申请号：US15037902
申请日：2014-11-19
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Fabio CAPONETTI , Ian COUCHMAN , Thomas KRÜGER , Ali ZAIB , Carsten Nørlund THOMSEN
Abstract: The invention relates to a control apparatus and method for controlling the rotor blades of a wind turbine, and in particular to controlling the rotor blades during an extreme wind event. An extended mode of operation of the wind turbine rotor beyond the cut-out wind speed is provided. In the extended mode of operation, the pitch of the wind turbine blades is actively controlled so that the rotor and the generator idle at a designated rotational speed. The rotational speed may be relatively high, say 15 to 20% of the nominal speed, compared with minimal speeds experienced by purely feathered wind turbine blades, and may be further controlled as a function of the incident wind speed. Output power control in the extended mode may be zero but is preferably a low, but non-zero value. The output power so produced may then be used as an auxiliary power source for controlling the wind turbine in situations where the utility grid fails.
Abstract translation: 本发明涉及一种用于控制风力涡轮机的转子叶片的控制装置和方法，特别涉及在极端风力事件期间控制转子叶片。 提供了超出切断风速的风力涡轮机转子的延长操作模式。 在扩展操作模式中，主动控制风力涡轮机叶片的桨距，使得转子和发电机以指定的转速空转。 与纯羽毛风力涡轮机叶片所经历的最小速度相比，旋转速度可以相对较高，例如额定速度的15至20％，并且可以作为入射风速的函数进一步控制。 扩展模式下的输出功率控制可以为零，但优选为低但非零值。 这样产生的输出功率然后可以用作在公用电网故障的情况下控制风力涡轮机的辅助电源。
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公开(公告)号：US20240410333A1
公开(公告)日：2024-12-12
申请号：US18699433
申请日：2022-10-07
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jesper Sandberg THOMSEN , Alexander Duncan GILES , Ian COUCHMAN
Abstract: A method of damping motion of a wind turbine, the wind turbine comprising a rotor and a floating platform. A motion signal is generated which is indicative of a motion of the wind turbine. A wind direction signal is generated which is indicative of a wind direction relative to the floating platform. A damping signal is generated on the basis of the motion signal and the wind direction signal, and the motion of the wind turbine is damped on the basis of the damping signal, for instance by adjusting the pitch of the rotor blades. A phase of the damping signal may be controlled on the basis of the wind direction signal.
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公开(公告)号：US20230035973A1
公开(公告)日：2023-02-02
申请号：US17758653
申请日：2021-01-12
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Julio Xavier Vianna NETO , Søren DALSGAARD , Ian COUCHMAN , Jon SOWMAN
Abstract: Embodiments herein describe in-plane vibration damping techniques for MR turbines. The MR turbines can include arms that extend from a common tower and support multiple rotors. Because the rotors are disposed laterally away from the tower, side-to-side motion of the tower causes the rotors to have an angled trajectory that includes both lateral and vertical displacement. In addition, a rotor disposed on one side of the tower in MR turbine can have a very different trajectory than a rotor disposed on the opposite side of the tower. To account for the vertical displacement and the different trajectories, in one embodiment, a controller can use different phase offsets for each rotor when calculating pitch offsets for performing in-plane vibration damping. In another embodiment, the controller can use both the lateral and vertical accelerations of the rotors to identify the pitch offsets for the rotors to perform in-plane vibration damping.
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公开(公告)号：US20220220937A1
公开(公告)日：2022-07-14
申请号：US17615064
申请日：2020-05-26
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Jesper Sandberg THOMSEN , Ian COUCHMAN , Morten BRO
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 a torsional vibration signal and apply a filter to the torsional vibration signal to couple the torsional vibration signal to an edgewise vibration of the rotor blades. An m-blade coordinate transformation, such as the Coleman transformation, is applied to the filtered torsional vibrational signal to obtain pitch modification signals.
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