公开(公告)号：WO2017084675A1

公开(公告)日：2017-05-26

申请号：PCT/DK2016/050373

申请日：2016-11-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： KJÆR, Martin Ansbjerg ,  ØSTERGAARD, Kasper Zinck ,  GRAUGAARD-JENSEN, Jan

IPC: F03D7/02

CPC classification number: F03D7/0224 ,  F03D7/0284 ,  F05B2270/10711 ,  F05B2270/309 ,  F05B2270/328 ,  F05B2270/335 ,  Y02E10/723

Abstract: Embodiments of the present invention relate to control of a wind turbine during a recovery period after a grid fault. It is disclosed to operate a wind turbine during the recovery period to determine the actual pitch angle of the rotor blades and the actual wind speed, and based on that determining a desired pitch angle of the rotor blades, as well as a pitch ramp rate so that the actual pitch angle can be brought to match the desired pitch angle before the end of the recovery period. In embodiments, the steps performed in the recovery mode are repeated at intervals during the recovery period.

Abstract translation: 本发明的实施例涉及在电网故障之后的恢复时段期间控制风力涡轮机。 公开了在恢复期间操作风力涡轮机以确定转子叶片的实际俯仰角和实际风速，并基于确定转子叶片的期望俯仰角以及俯仰斜率 在恢复周期结束之前可以使实际俯仰角与期望俯仰角相匹配。 在实施例中，恢复模式中执行的步骤在恢复周期期间以间隔重复。

公开(公告)号：WO2017063655A1

公开(公告)日：2017-04-20

申请号：PCT/DK2016/050329

申请日：2016-10-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： SCHWENSEN, John ,  ØSTERGAARD, Kasper Zinck ,  NIELSEN, Jakob Hviid ,  KNUDSEN, Jan Vestergaard

IPC: F03D7/02

CPC classification number: F03D7/0224 ,  F05B2260/76 ,  F05B2260/79 ,  F05B2260/821 ,  F05B2270/1075 ,  F05B2270/326 ,  F05B2270/328 ,  F05B2270/404 ,  F05B2270/604 ,  Y02E10/723

Abstract: There is provided a pitch control system (210) for controlling a pitch force system (220) for pitching a blade (103) of a wind turbine (100), the pitch control system (210) being arranged for activating (682) an auxiliary pitch force subsystem (224) at an initiation point in time where a main pitch force is sufficient to pitch the blade (103) into a target pitch value. An advantage thereof may be that tracking of a target pitch value may be improved and the impact on the pitch force system (220) may be reduced. In aspects, there is furthermore presented a hydraulic pitch system (206), a wind turbine (100), a method and a computer program product.

Abstract translation: 提供了用于控制用于俯仰风力涡轮机（100）的叶片（103）的俯仰力系统（220）的俯仰控制系统（210），俯仰控制系统（210） 布置成在主节距力足以将叶片（103）倾斜到目标节距值的起始时间点激活（682）辅助节距力子系统（224）。 其优点可以是可以提高对目标俯仰值的追踪并且可以降低对俯仰力系统（220）的影响。 在各方面中，还提出了一种液压变桨系统（206），风力涡轮机（100），方法和计算机程序产品。

公开(公告)号：WO2017202430A1

公开(公告)日：2017-11-30

申请号：PCT/DK2017/050167

申请日：2017-05-22

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： HOVGAARD, Tobias Gybel ,  HAMMERUM, Keld ,  ØSTERGAARD, Kasper Zinck

IPC: G05B13/04 ,  F03D7/04

CPC classification number: G05B13/048 ,  F03D7/045 ,  F03D7/047 ,  F05B2270/404 ,  F05B2270/803 ,  G05B2219/2619 ,  Y02E10/723

Abstract: A wind turbine control unit comprising a control module configured to control an actuator system by outputting a first control signal, wherein the first control signal includes a current control sample value and a predicted control trajectory; the control unit further comprising an upsampling module configured to receive the first control signal from the control module, and to output a second control signal for controlling the actuator system, the second control signal having a higher frequency that the first control signal. The upsampling module calculates the second control signal in dependence on the current control sample value and the predicted control trajectory. The embodiments provide a more accurately reproduced control signal at a higher frequency that is suitable for onward processing which does not suffer from the problems of aliasing and delay that exist with conventional upsampling techniques. The dynamic response of the actuator system is improved such that it exhibits lower overshoot and is more optimally damped. Embodiments of the invention also relate to a wind turbine control system including such a control unit, a method for operating a control unit, and a computer program product adapted for implementing the method.

Abstract translation: 风力涡轮机控制单元，其包括控制模块，所述控制模块被配置为通过输出第一控制信号来控制致动器系统，其中所述第一控制信号包括当前控制样本值和预测控制轨迹; 所述控制单元还包括上采样模块，所述上采样模块被配置为从所述控制模块接收所述第一控制信号并且输出用于控制所述致动器系统的第二控制信号，所述第二控制信号具有比所述第一控制信号更高的频率。 上采样模块根据当前的控制样本值和预测的控制轨迹来计算第二控制信号。 这些实施例以更高的频率提供更准确再现的控制信号，该控制信号适用于不受常规上采样技术存在的混叠和延迟问题的前向处理。 致动器系统的动态响应得到了改善，从而显示出较低的超调并且更加优化地阻尼。 本发明的实施例还涉及包括这种控制单元的风力涡轮机控制系统，用于操作控制单元的方法以及适用于实施该方法的计算机程序产品。

公开(公告)号：WO2017137050A1

公开(公告)日：2017-08-17

申请号：PCT/DK2017/050035

申请日：2017-02-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： GRUNNET, Jacob Deleuran ,  CASTAIGNET, Damien ,  HAMMERUM, Keld ,  ØSTERGAARD, Kasper Zinck

IPC: F03D7/02 ,  F03D80/70 ,  F03D17/00

CPC classification number: F03D7/0224 ,  F03D7/0292 ,  F03D17/00 ,  F03D80/70 ,  F05B2240/50 ,  F05B2260/79 ,  Y02E10/723

Abstract: A method of controlling a wind turbine is described. The method comprises calculating a current wear rate for each of the main bearing of a turbine rotor and the blade bearings of rotor blades mounted on the turbine rotor, and calculating a blade pitch adjustment of the rotor blades to achieved a desired ratio between main bearing wear and blade bearing wear in dependence on the calculated current wear rates of the main bearing and the blade bearings.

Abstract translation: 描述了一种控制风力涡轮机的方法。 该方法包括计算涡轮机转子的主轴承和安装在涡轮机转子上的转子叶片的叶片轴承中的每一个的当前磨损率，并且计算转子叶片的叶片桨距调节以实现主轴承磨损 和叶片轴承的磨损取决于计算的主轴承和叶片轴承的当前磨损率。

公开(公告)号：WO2018095493A1

公开(公告)日：2018-05-31

申请号：PCT/DK2017/050371

申请日：2017-11-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ØSTERGAARD, Kasper Zinck ,  MONJO, Gustavo ,  KJÆR, Martin Ansbjerg

IPC: F03D7/04 ,  F03D7/02 ,  H02J3/38

Abstract: A method, a controller and a wind turbine with a controller for controlling the wind turbine in a cluster of wind turbines. Each wind turbine is controlled individually and each windturbine is configured to deliver power to the same utility grid. According to the method a delivery from a first wind turbine is reduced from a present power level to a reduced power level in response to an initial frequency of the utility grid exceeding a first threshold value; and the wind turbine is allowed to continue delivering power at the reduced power level.

公开(公告)号：WO2017174094A1

公开(公告)日：2017-10-12

申请号：PCT/DK2017/050111

申请日：2017-04-07

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ØSTERGAARD, Kasper Zinck ,  BRØDSGAARD, Martin ,  HOVGAARD, Tobias Gybel

IPC: F03D7/02 ,  F03D17/00

CPC classification number: F03D7/0296 ,  F03D7/0224 ,  F03D7/0276 ,  F03D7/042 ,  F03D17/00 ,  F05B2260/70 ,  F05B2260/96 ,  F05B2270/101 ,  F05B2270/807 ,  Y02E10/723

Abstract: A method of controlling a wind turbine comprising at least one rotor blade, and at least one accelerometer housed within a nacelle or a tower of the wind turbine. The method comprises: determining a whirling mode frequency for the wind turbine; measuring an acceleration signal that is indicative of the movement of the nacelle of the wind turbine; determining a frequency spectrum of the measured acceleration signal in the proximity of the determined whirling mode frequency; determining a characteristic value that is representative of the energy content of the measured acceleration signal having the determined frequency spectrum; and performing at least one control action if the characteristic value exceeds a predetermined threshold.

Abstract translation: 控制风力涡轮机的方法，所述风力涡轮机包括至少一个转子叶片和容纳在所述风力涡轮机的机舱或塔架内的至少一个加速度计。 该方法包括：确定风力涡轮机的涡动模式频率; 测量指示风力涡轮机的机舱的运动的加速度信号; 确定在确定的涡动模式频率附近的测量的加速度信号的频谱; 确定代表具有确定的频谱的测量的加速度信号的能量含量的特征值; 并且如果特征值超过预定阈值，则执行至少一个控制动作。

公开(公告)号：WO2018224103A1

公开(公告)日：2018-12-13

申请号：PCT/DK2018/050120

申请日：2018-05-30

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ØSTERGAARD, Kasper Zinck ,  KJÆR, Martin Ansbjerg ,  THOMSEN, Jesper Sandberg ,  GRUNNET, Jacob Deleuran

IPC: F03D7/02 ,  F03D7/04

Abstract: Embodiments are generally directed to techniques for operating a wind turbine of a wind power plant. An associated method comprises determining, using one or more sensors of the wind turbine, a first power production level of the wind turbine; determining, during an unconstrained operation of the wind turbine, one or more available power correction factors using the first power production level; determining, using one or more wind power parameters applied to a predefined model for estimating an available power of the wind turbine, an estimated available power value; adjusting the estimated available power value using the one or more available power correction factors to produce the available power value; and controlling, using the available power value, the wind turbine to produce a second power production level.

公开(公告)号：WO2018121825A1

公开(公告)日：2018-07-05

申请号：PCT/DK2017/050436

申请日：2017-12-18

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： KJÆR, Martin Ansbjerg ,  ØSTERGAARD, Kasper Zinck

IPC: F03D7/02 ,  F03D9/25 ,  F03D7/04

CPC classification number: F03D7/0284 ,  F03D7/048 ,  F03D9/257 ,  F05B2270/337 ,  Y02E10/723 ,  Y02E10/725

Abstract: The invention relates to a method for controlling a wind turbine to change a power reference Pref from a first power level to a second power level dependent on a comparison of a grid frequency f with a frequency threshold fT. In order to enable fast changes of the power reference Pref in case of a relatively large deviation of the grid frequency relative to the nominal grid frequency, a power ramp rate allowing a fast change of the power reference may be set if the grid frequency is greater than the frequency threshold.

公开(公告)号：WO2017063654A1

公开(公告)日：2017-04-20

申请号：PCT/DK2016/050328

申请日：2016-10-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： KJÆR, Martin Ansbjerg ,  HANSEN, Frank Møller ,  NIELSEN, Jakob Hviid ,  NEUBAUER, Jesper Lykkegaard ,  CHRISTENSEN, Poul Brandt ,  CAPONETTI, Fabio ,  SKALLEBÆK, Christian ,  GRØN-STEVENS, Robert ,  ØSTERGAARD, Kasper Zinck

IPC: F03D7/02

CPC classification number: F03D7/0224 ,  F03D7/024 ,  F05B2260/406 ,  F05B2260/76 ,  F05B2270/301 ,  F05B2270/604 ,  Y02E10/723

Abstract: 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).

Abstract translation: 提供了一种用于控制液压变桨力系统（220）的方法，以便在液压系统参数值在液压系统参数之外时减少或消除液压油压力（241）的减小 所述方法包括：获取（690）所述液压系统参数值，并且如果所述液压系统参数值在所述液压系统参数范围之外，则根据减少的模式（692）操作所述液压变桨力系统（220），其中， 减少模式一个或多个基于音调的活动被减少（694）或暂停。 其优点可以是它能够在某些情况下保持风力涡轮机在生产中而不是关闭风力涡轮机。 在各方面中，还提供了计算机程序产品，桨距控制系统（250）和风力涡轮机（100）。

公开(公告)号：WO2017000948A1

公开(公告)日：2017-01-05

申请号：PCT/DK2016/050198

申请日：2016-06-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： CAPONETTI, Fabio ,  ØSTERGAARD, Kasper Zinck ,  HILTON, Dan

IPC: F03D17/00 ,  F03D1/00

CPC classification number: F03D17/00 ,  F03D7/0224 ,  F03D13/35 ,  F05B2240/221 ,  F05B2270/101 ,  F05B2270/802 ,  G05B19/042 ,  G05B2219/2619 ,  Y02E10/72

Abstract: A method of calibrating load sensors of a wind turbine, and a wind turbine for such load sensor calibration, are disclosed. The wind turbine comprises a rotor, a plurality of rotor blades, and a plurality of load sensors associated with the rotor blades. While the rotor is rotating, at least one of the rotor blades is moved from a first calibration position to a second calibration position, and load values from the load sensors are measured. The number of rotor blades being moved is at least one fewer than the number of the plurality of rotor blades. The rotation of the rotor may be during idling of the wind turbine. The movement of the blade(s) may be to change the pitch angle of the blade(s). At least one of the rotor blades not being moved to a calibration position may also be moved, for example to control the rotational speed of the rotor.

Abstract translation: 公开了一种校准风力涡轮机的负载传感器和用于这种负载传感器校准的风力涡轮机的方法。 风力涡轮机包括转子，多个转子叶片和与转子叶片相关联的多个负载传感器。 当转子旋转时，至少一个转子叶片从第一校准位置移动到第二校准位置，并且测量来自负载传感器的负载值。 正在移动的转子叶片的数量比多个转子叶片的数量少至少一个。 转子的旋转可以在风力涡轮机的空转期间。 叶片的运动可以是改变叶片的桨距角。 不移动到校准位置的转子叶片中的至少一个也可以被移动，例如以控制转子的转速。