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公开(公告)号：WO2017114527A1
公开(公告)日：2017-07-06
申请号：PCT/DK2016/050426
申请日：2016-12-12
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： VALCAN, Dumitru-Mihai , GARCIA, Jorge Martinez , NAYEBI, Kouroush , THOMSEN, Jesper Sandberg , KJÆR, Martin Ansbjerg
CPC classification number: H02J3/386 , F03D7/0284 , F03D7/048 , H02J3/48 , Y02E10/723 , Y02E10/763
Abstract: A method for controlling a wind power plant comprising a plurality of wind turbine generators, wherein the method comprises: deriving an estimated value for electrical losses in the wind power plant, deriving a measured value for electrical losses in the wind power plant, based on a difference between an aggregated power production from the plurality of wind turbine generators and a power measurement at a point of common coupling; applying the estimated value for electrical losses and the measured value for electrical losses in an active power control loop, comprising a regulator; and controlling by means of the active power control loop an active power production of the wind power plant at the point of common coupling.
Abstract translation: 一种用于控制包括多个风力涡轮发电机的风力发电设备的方法，其中所述方法包括：导出所述风力发电站中的电力损失的估计值，导出针对所述风力发电站中的电力损失的测量值 风力发电厂基于来自多个风力涡轮发电机的集合发电量与公共耦合点处的功率测量值之间的差异; 在有功功率控制回路中应用电气损失的估计值和电气损失的测量值，所述有效功率控制回路包括调节器; 并通过有功功率控制回路控制风力发电站在公共耦合点处的有功功率生产。
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公开(公告)号：WO2016086938A1
公开(公告)日：2016-06-09
申请号：PCT/DK2015/050365
申请日：2015-11-30
Applicant: VESTAS WIND SYSTEMS A/S
CPC classification number: F03D7/028 , F03D9/25 , F03D80/82 , F05B2240/912 , F05B2270/331 , H02J3/386 , H02K7/1838 , H02P9/105 , Y02E10/723 , Y02E10/728 , Y02E10/763
Abstract: The invention relates to a method for limiting structural loads in a wind turbine in situations where the power produced by the wind turbine is increased or decreased. The limitation of structural loads is achieved by restricting the power ramp rate, i.e. the rate of change of increases or decreases in produced power. The restriction is only invoked if a maximum change of the produced power or the corresponding internal power reference within a time window exceeds a given threshold.
Abstract translation: 本发明涉及在由风力涡轮机产生的功率增加或减少的情况下限制风力涡轮机中的结构负载的方法。 结构负载的限制通过限制功率斜坡率，即产生功率的增加或减少的变化率来实现。 只有在时间窗内产生的功率或相应的内部功率参考值的最大变化超过给定阈值时才调用该限制。
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33.发明申请
公开(公告)号：WO2013097852A1
公开(公告)日：2013-07-04
申请号：PCT/DK2012/050461
申请日：2012-12-13
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： ANDERSEN, Asger Svenning , THOMSEN, Jesper Sandberg , KRISTOFFERSEN, Jacob Krogh , OLESEN, Ib Svend , ROMBLAD, Jonas
CPC classification number: F03D7/0256 , F03D7/0224 , F03D7/042 , F03D7/046 , F03D17/00 , Y02E10/723
Abstract: The rotor blades of a wind turbine each have a plurality of fibre-optic pressure variation sensors which can detect the onset of a stall condition. The output of the stall condition sensors is input to a stall count circuit which increases a stall count signal each time a stall indication is received. The stall count signal is decayed exponentially over time and the current signal is summed with the decayed signal from a previous sampling period to form a value from which a stall margin is determined. An λ:θ curve of tip speed to wind speed ratio λ against pitch angle reference θ is then determined from the stall margin.
Abstract translation: 风力涡轮机的转子叶片每个都具有多个光纤压力变化传感器，其可以检测失速状态的开始。 失速状态传感器的输出被输入到失速计数电路，每当收到失速指示时，该停止计数电路增加失速计数信号。 失速计数信号随时间呈指数衰减，并且将当前信号与来自先前采样周期的衰减信号相加以形成确定失速余量的值。 然后从失速余量确定尖端速度对风速比λ与俯仰角参考θ的λ曲线。
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公开(公告)号：WO2012083958A2
公开(公告)日：2012-06-28
申请号：PCT/DK2011/050484
申请日：2011-12-15
Applicant: VESTAS WIND SYSTEMS A/S , RISAGER, Lars , DALSGAARD, Søren , KRISTOFFERSEN, Jacob Krogh , THOMSEN, Jesper Sandberg , SØRENSEN, Søren , ANDERSEN, Asger Svenning
Inventor： RISAGER, Lars , DALSGAARD, Søren , KRISTOFFERSEN, Jacob Krogh , THOMSEN, Jesper Sandberg , SØRENSEN, Søren , ANDERSEN, Asger Svenning
IPC: F03D7/02
CPC classification number: F03D7/0224 , F03D7/024 , F03D7/042 , F05B2270/326 , F05B2270/331 , Y02E10/723
Abstract: The invention relates to a method of controlling a wind turbine comprising blades attached to a rotor hub for rotation in a rotor plane and a control system for individually pitching the blades relative to the hub. The method comprises the steps of dividing the rotor plane into a number of sectors, determining the individual sectors for each blade during the rotation by means of an azimuth angle sensor, and obtaining blade sensor data from a blade sensor on an individual blade relating to a sector,and comparing the obtained data with data relating to the same sector and representing blade sensor data on other blades. Hereby an event may be detected for individual sectors of the rotor plane. When an event is detected in a given sector,an individual pitch contribution t is determined in the sector, and the blades are then pitched according to this individual pitch contribution for that given sector at least partly during passage of the sector. The invention further relates to a wind turbine comprising a control system for individually pitching the blades relative to the hub according to the above mentioned control method. (FIGURE 1)
Abstract translation: 本发明涉及一种控制风力涡轮机的方法，该风力涡轮机包括附接到转子轮毂上的叶片，用于在转子平面中旋转，以及控制系统，用于单独地相对于桨毂倾斜叶片。 该方法包括以下步骤：将转子平面划分成多个扇区，通过方位角传感器确定旋转期间每个叶片的各个扇区，以及从单个叶片上的叶片传感器获得叶片传感器数据， 并且将获得的数据与与相同扇区相关的数据进行比较，并在其他刀片上表示刀片传感器数据。 因此，可以检测到转子平面的各个扇区的事件。 当在给定扇区中检测到事件时，在该扇区中确定单个节距贡献t，并且然后至少部分地在扇区通过期间，根据该给定扇区的这个单独俯仰贡献来调整叶片。 本发明还涉及一种风力涡轮机，其包括用于根据上述控制方法单独地对叶片相对于桨毂投影的控制系统。 （图1）
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公开(公告)号：WO2023072355A1
公开(公告)日：2023-05-04
申请号：PCT/DK2022/050223
申请日：2022-10-28
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： GILES, Alexander Duncan , THOMSEN, Jesper Sandberg
IPC: F03D7/02 , F03D7/0224 , F03D7/0296 , F05B2270/334
Abstract: The invention relates to adjusting pitch of rotor blades of a wind turbine. An acceleration signal is received from a wind turbine acceleration sensor and is indicative of side-to-side motion of the wind turbine tower. A first component in a fixed coordinate frame of the wind turbine is determined based on the received acceleration signal. The first component is indicative of a whirling mode of the wind turbine caused by edgewise vibrations of the rotor blades. A second component is generated based on the first component and is orthogonal to the first component. A control action is applied to obtain first and second control components for mitigating the whirling mode. An inverse m-blade coordinate transformation is applied to the first and second control components to obtain pitch reference offset values in a rotor coordinate frame of the wind turbine, which are used to adjust pitch of the rotor blades.
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Patent Agency Ranking
公开(公告)号：WO2021185422A1
公开(公告)日：2021-09-23
申请号：PCT/DK2021/050082
申请日：2021-03-15
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： THOMSEN, Jesper Sandberg , MAREE, Johannes Philippus , HOVGAARD, Tobias Gybel , SLOTH-ODGAARD, Peter
IPC: F03D7/02
Abstract: The invention relates to control of a wind turbine to address varying drivetrain loading. This is obtained by determining a modification signal to be set as a control signal. A signal indicative of a speed of the electrical generator a signal indicative of a requested output power are received. The signal indicative of a speed is filtering to isolate frequencies in a selected disturbance frequency band to generate a disturbance signal. The disturbance signal is phase shifted and combined with a requested output power to obtain the modification signal.
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公开(公告)号：WO2019120397A1
公开(公告)日：2019-06-27
申请号：PCT/DK2018/050301
申请日：2018-11-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： GUPTA, Manoj , KUMAR, Ravi , SIVASANKARAN, Janakiraman , GRAU, Thomas Schmidt , KJÆR, Martin Ansbjerg , NAYEBI, Kouroush , NIELSEN, John Godsk , THOMSEN, Jesper Sandberg
Abstract: A method (200) for operating a renewable energy power plant comprising a plurality of renewable energy generators. The method comprises: identifying (202) a predetermined condition of the renewable energy power plant, of the grid, or of the connection between the renewable energy power plant and the grid, the predetermined condition indicating a weak grid interconnection between the renewable energy power plant and the grid; and controlling (206) each renewable energy generator in an adaptive active power mode in response to recovery of the grid from a voltage deviation. The adaptive active power mode comprises: determining (210) a thermal capacity of a chopper resistor of the renewable energy generator; calculating (212), based upon the determined thermal capacity, a limit level of rate of change of active power output that may be implemented by the renewable energy generator; and operating (214) the renewable energy generator to output active power at the calculated rate of change limit level.
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公开(公告)号：WO2018210390A1
公开(公告)日：2018-11-22
申请号：PCT/DK2018/050104
申请日：2018-05-15
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： CAPONETTI, Fabio , THOMSEN, Jesper Sandberg , CHRISTENSEN, Poul Brandt
IPC: F03D7/02
Abstract: The present invention relates to control of a wind turbine where nacelle vibration is reduced by use of blade pitching or generator torque modulation. The nacelle vibrations are reduced based on a position signal of the nacelle. An actuator signal is determined based on the position signal and applied to the actuator capable of reducing nacelle vibration. The actuator signal is gain adjusted based on a separation between the rotor frequency and tower vibration frequency.
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39.发明申请
公开(公告)号：WO2018095496A1
公开(公告)日：2018-05-31
申请号：PCT/DK2017/050387
申请日：2017-11-23
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： THOMSEN, Jesper Sandberg , COUCHMAN, Ian
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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公开(公告)号：WO2017144061A1
公开(公告)日：2017-08-31
申请号：PCT/DK2017/050045
申请日：2017-02-24
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： CAPONETTI, Fabio , THOMSEN, Jesper Sandberg , GRUNNET, Jacob Deleuran , CHRISTENSEN, Poul Brandt
IPC: F03D7/02
CPC classification number: F03D7/0296 , F03D7/0224 , F03D7/024 , F05B2260/96 , F05B2270/326 , F05B2270/334 , Y02E10/723
Abstract: 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.
Abstract translation: 公开了一种用于阻尼风力涡轮机的塔架的振荡的方法，其中，所述一个或多个转子叶片中的每一个的倾角可单独调节，所述方法包括阻尼所述塔架的振动 通过根据塔架减振俯仰控制信号分别俯仰每个转子叶片，其中每个塔架减振俯仰控制信号包括第一周期性分量，其中第一周期性分量的第一频率对应于第一周期性分量的第一频率和第二周期性分量的振荡的塔频之间的频率差 塔和转子旋转的转子频率，并且其中第二周期性成分已被减少或去除。 第二周期性分量的第二频率对应于塔架频率和转子频率的频率和。
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