-
11.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.
-
公开(公告)号：US20180283354A1
公开(公告)日：2018-10-04
申请号：US15759150
申请日：2016-09-27
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Keld HAMMERUM , Martin Ansbjerg KJÆR , Jesper Sandberg THOMSEN , Eik HERBSLEB , Tobias Gybel HOVGAARD
IPC: F03D7/04
Abstract: The present disclosure relates to a control system for a wind turbine comprising more controllers and where at least some of the controllers operate at different sample frequencies. The control system comprises at least two controller units, a first controller (10) for determining an operational value (OV) of a sub-system and a second controller (20) for the sub-system. The second controller operates at a higher sample frequency than the first controller. It is disclosed that a faster reaction to a received demand value (V1), received for controlling the sub-system, can be obtained by setting the operational value (OV) of the sub-system as the sum of an internal operational value (V5) and a difference value (V4).
-
公开(公告)号：US20180171974A1
公开(公告)日：2018-06-21
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
IPC: F03D7/02
CPC classification number: F03D7/028 , F05B2270/1033 , F05B2270/309 , F05B2270/335 , Y02E10/723
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.
-
公开(公告)号：US20180051675A1
公开(公告)日：2018-02-22
申请号：US15554356
申请日：2016-02-29
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Martin Ansbjerg KJÆR , Robert BOWYER , Robert GRØN-STEVENS , Jacob Deleuran GRUNNET , Carsten Nørlund THOMSEN , Jesper Sandberg THOMSEN
CPC classification number: F03D7/0284 , F03D7/0224 , F03D7/0276 , F05B2220/706 , F05B2270/1033 , F05B2270/32 , F05B2270/327 , F05B2270/328 , F05B2270/337 , G05B15/02 , Y02E10/723 , Y02E10/725
Abstract: Embodiments herein describe varying the rotor speed based on the current wind speed when operating in a low power mode. Generally, as the wind speed increases above the rated wind speed (i.e., the wind speed at which the turbine is capable of producing its rated or maximum output power), the rotor speed can be reduced thereby minimizing the risk that the turbine experiences smearing or torque reversals. In one embodiment, as the rotor speed decreases, the turbine maintains the ability to ramp to the rated power of the turbine only by pitching in the blades to an optimal blade pitch angle. Thus, upon receiving a request to cease operating in the low power mode, the turbine can increase the output power to the rated power without first increasing the rotor speed.
-
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。
-
Patent Agency Ranking
公开(公告)号：US20250052229A1
公开(公告)日：2025-02-13
申请号：US18720107
申请日：2022-12-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Alexander Duncan GILES , Jesper Sandberg THOMSEN , Christian JEPPESEN
IPC: F03D7/02
Abstract: Adjusting pitch of the wind turbine rotor blades to reduce fatigue of the wind turbine tower. Flap loading sensor data is received for the rotor blades, and a flap loading vector in a rotor coordinate frame of the wind turbine is obtained. The flap loading vector is transformed to obtain first and second mutually orthogonal components in a fixed wind turbine coordinate frame, and respective 3P (blade passing frequency) components in the fixed frame indicative of 3P frequency content of the wind turbine tower are determined. A control action is applied to obtain respective 3P control components for mitigating the 3P frequency content of the tower, an inverse transform is applied to the 3P control components to obtain pitch reference offset values for the respective rotor blades in the rotor coordinate frame, and blade pitch is adjusted based on the pitch reference offset values.
-
公开(公告)号：US20240068443A1
公开(公告)日：2024-02-29
申请号：US18260466
申请日：2022-01-03
Applicant: VESTAS WIND SYSTEMS A/S
CPC classification number: F03D7/0298 , F03D7/0224 , F03D13/201 , F05B2240/912 , F05B2260/96
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.
-
公开(公告)号：US20210231102A1
公开(公告)日：2021-07-29
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.
-
公开(公告)号：US20180363627A1
公开(公告)日：2018-12-20
申请号：US16060104
申请日：2016-12-01
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Kouroush NAYEBI , Jacob Deleuran GRUNNET , Jesper Sandberg THOMSEN
Abstract: There is presented a method for controlling a plurality of wind turbines comprising measuring wind turbine operation parameters in a model relating a plurality of wind turbine parameters to each other, estimating one wind turbine operation parameter value based on the model and the measured remaining wind turbine operation parameter values, providing a reliability parameter value for each wind turbine based on a difference value, said difference value being a difference between the estimated wind turbine operation parameter value, and the measured wind turbine operation parameter value corresponding to the wind turbine operation parameter for which the estimated wind turbine operation parameter value is provided, and controlling the plurality of wind turbines based on the corresponding plurality of reliability parameter values.
-
公开(公告)号：US20180135597A1
公开(公告)日：2018-05-17
申请号：US15578176
申请日：2016-05-23
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Kouroush NAYEBI , Mu WEI , Dumitru-Mihai VALCAN , Jesper Sandberg THOMSEN
CPC classification number: F03D7/0284 , F03D7/048 , F05B2270/1033 , F05B2270/1075 , F05B2270/335 , F05B2270/337 , G05B15/02 , Y02E10/723
Abstract: A method and control arrangement are disclosed for controlling power output of a wind power plant (WPP) including a plurality of wind turbine generators (WTGs). The method includes determining that overboosting is required for the WPP to meet a power demand at the WPP, and determining, for at least a first WTG of the plurality of WTGs, a corresponding amount of overboost capacity. The method further includes generating, based on the determined amount of overboost capacity, control signals causing the first WTG to increase its power output through overboosting to thereby fulfill at least a portion of the power demand.
-
-
-
-
-
-
-
-
-
Search Results
33
records
(took 0.033 seconds)
