公开(公告)号：WO2021093924A1

公开(公告)日：2021-05-20

申请号：PCT/DK2020/050305

申请日：2020-11-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： NIELSEN, Thomas S. Bjertrup ,  DALSGAARD, Søren ,  JØRGENSEN, Brian ,  SØRENSEN, Kim Hylling

IPC: F03D1/06

Abstract: A wind turbine comprising a tower, a nacelle mounted on the tower, a hub mounted rotatably on the nacelle, a blade carrying structure connected to the hub, one or more wind turbine blades connected to the blade carrying structure via a hinge, each wind turbine blade thereby being arranged to perform pivot movements relative to the blade carrying structure between a minimum pivot angle and a maximum pivot angle, each wind turbine blade extending between an outer tip and an inner tip, wherein each wind turbine blade has an outer portion extending between the hinge and the outer tip and having a first length (L1), and inner portion extending between the hinge and the inner tip and having a second length (L2), wherein a coning angle of the blade carrying structure is larger than zero and/or a tilt angle of the rotor axis is larger than zero, and wherein a horizontal distance (L0) from the tower at a vertical position defined by a position of the hinge at tower passage to a point of connection between the blade carrying structure and the hub is equal to or less than the second length (L2).

公开(公告)号：WO2019114894A1

公开(公告)日：2019-06-20

申请号：PCT/DK2018/050291

申请日：2018-11-08

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： NETO, Julio Xavier Vianna ,  TARNOWSKI, Germán Claudio ,  BLUMENSAAT, Mads ,  PETERSEN, Torben ,  DALSGAARD, Søren

IPC: F03D7/02 ,  F03D9/11

CPC classification number: F03D9/11 ,  F03D7/0272

Abstract: A method for controlling a wind turbine (2) is disclosed. During full load operation, a power reference value, P ref , representing a power level to be supplied to the power grid by the wind turbine (2), is received, and the wind turbine (2) is controlled in order to produce an output power which is at or near the power reference value, P ref , while maintaining a constant torque on the generator (6). In the case that the produced output power of the wind turbine (2) exceeds the power reference value, P ref , excess produced energy is stored in the energy storage system (10), and in the case that the produced output power of the wind turbine (2) is below the power reference value, P ref , stored energy is retrieved from the energy storage system (10). A power level being equal to the power reference value, P ref , is supplied to the power grid.

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）

公开(公告)号：WO2012019609A1

公开(公告)日：2012-02-16

申请号：PCT/DK2011/050290

申请日：2011-07-22

Applicant: VESTAS WIND SYSTEMS A/S ,  LOVMAND, Bo ,  DALSGAARD, Søren

Inventor： LOVMAND, Bo ,  DALSGAARD, Søren

IPC: F03D9/00 ,  F03D7/04

CPC classification number: F03D7/043 ,  F03D7/028 ,  F03D7/048 ,  F05B2270/1033 ,  F05B2270/335 ,  F05B2270/708 ,  Y02E10/723

Abstract: The invention relates to a method for controlling a wind power plant comprising a plurality of wind turbines being operatively connected to a plant collector grid, the method comprising the steps of providing a desired power reference signal; determining the power production of the wind power plant, and generating an actual power reference signal in response thereto; comparing the desired power reference signal with the actual power reference signal, and performing one of the following steps: 1) applying a first filter characteristic as part of a generation of a wind turbine power reference if the desired power reference signal exceeds the actual power reference signal; or 2) applying a second filter characteristic as part of the generation of the wind turbine power reference if the actual power reference signal exceeds the desired power reference signal, wherein the first filter characteristic is different from the second filter characteristic. The invention also relates to a power plant controller, a wind power plant and a computer program product.

Abstract translation: 本发明涉及一种用于控制风力发电设备的方法，包括可操作地连接到工厂收集器电网的多个风力涡轮机，该方法包括以下步骤：提供期望的功率参考信号; 确定风力发电厂的发电量，并响应于此产生实际功率参考信号; 将期望的功率参考信号与实际功率参考信号进行比较，并且执行以下步骤之一：1）如果期望功率参考信号超过实际功率参考值，则应用第一滤波器特性作为生成风力涡轮机功率参考的一部分 信号; 或者2）如果实际功率参考信号超过所需的功率参考信号，则应用第二滤波器特性作为风力涡轮机功率基准的产生的一部分，其中第一滤波器特性不同于第二滤波器特性。 本发明还涉及发电厂控制器，风力发电厂和计算机程序产品。

公开(公告)号：WO2011157272A2

公开(公告)日：2011-12-22

申请号：PCT/DK2011/050211

申请日：2011-06-13

Applicant: VESTAS WIND SYSTEMS A/S ,  DALSGAARD, Søren ,  RISAGER, Lars

Inventor： DALSGAARD, Søren ,  RISAGER, Lars

IPC: F03D7/04

CPC classification number: F03D7/0292 ,  F03D7/0224 ,  F03D7/042 ,  F05B2270/309 ,  F05B2270/32 ,  F05B2270/327 ,  F05B2270/335 ,  Y02E10/723

Abstract: The invention relates to a method of controlling a wind turbine having a rotor with pitchable wind turbine blades and a generator for producing power, where a pitch reference value for the wind turbine blades is determined, and an operational parameter representing a loading on the wind turbine rotor exerted by the wind is measured at time intervals. A variation parameter reflecting a variation of the operational parameter over time is determined and used in the determination of a minimum pitch limit value of the pitch reference value. The wind turbine is then controlled according to the pitch reference value only if the pitch reference value is above or equal to the minimum pitch limit value, and otherwise according to the minimum pitch limit value. The invention further relates to a method of controlling the change in the operational parameter as measured in two successive time steps is determined and the turbine then being controlled according to a safety control strategy if the difference between the operational parameter change and the variation parameter is above a certain alert threshold. The invention further relates to a control system configured to perform the above control method, and a wind turbine comprising such system.

Abstract translation: 本发明涉及一种控制风力涡轮机的方法，所述风力涡轮机具有带有可倾斜风力涡轮机叶片的转子和用于产生功率的发电机，其中确定了风力涡轮机叶片的俯仰基准值，以及表示风力涡轮机上的载荷的操作参数 以时间间隔测量由风施加的转子。 确定反映运行参数随时间变化的变化参数，并用于确定俯仰基准值的最小俯仰极限值。 然后，只有在俯仰基准值高于或等于最小俯仰极限值时，才根据俯仰基准值控制风力涡轮机，否则根据最小俯仰极限值进行控制。 本发明还涉及一种控制在两个连续时间步长中测量的操作参数的变化的方法，并且如果操作参数变化和变化参数之间的差异在上方，则根据安全控制策略来控制涡轮机 一定的警报阈值。 本发明还涉及一种被配置为执行上述控制方法的控制系统和包括该系统的风力涡轮机。

公开(公告)号：WO2021249604A1

公开(公告)日：2021-12-16

申请号：PCT/DK2021/050180

申请日：2021-06-09

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： NETO, Julio Xavier Vianna ,  WOLLESEN, Anders Yde ,  DALSGAARD, Søren

IPC: F03D1/02 ,  F03D7/02 ,  F03D7/04 ,  F03D7/0204 ,  F03D7/0212 ,  F03D7/0276 ,  F03D7/047

Abstract: The present invention relates to a multirotor wind turbine comprising at least two rotor nacelle assemblies mounted to a support arrangement via respective yawing systems, and a toe angle control system for controlling the toe angles of the rotor nacelle assemblies with respect to the 5 support arrangement; wherein the toe angle control system is configured to operate in a first mode in which the rotor nacelle assemblies are held at positive toe angles while the wind turbine is generating power in a main production mode; wherein the toe angle control system is further configured to monitor the operating mode of the wind turbine, and to switch to a second mode in which the yawing systems of the rotor nacelle assemblies are operated to 10 reduce the toe angles of the rotor nacelle assemblies if an operating mode-based trigger condition has been met.

公开(公告)号：WO2021129907A1

公开(公告)日：2021-07-01

申请号：PCT/DK2020/050359

申请日：2020-12-14

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： NIELSEN, Thomas S. Bjertrup ,  ANDERSEN, Peter Bjørn ,  JØRGENSEN, Brian ,  DALSGAARD, Søren ,  SØRENSEN, Kim Hylling ,  LARSEN, Torben Juul

IPC: F03D7/02 ,  F03D7/0236 ,  F03D7/024 ,  F05B2240/2022

Abstract: A method for controlling tilt moment (10) of a wind turbine (1) is disclosed. One or more wind turbine blades (5) are connected to a blade carrying structure (4) via a hinge (6), each wind turbine blade (5) thereby being arranged to perform pivot movements relative to the blade carrying structure (4) between a minimum pivot angle and a maximum pivot angle. The wind turbine (1) further comprises an adjustable biasing mechanism (8, 11, 12) arranged to apply an adjustable biasing force to each wind turbine blade (5) which biases the wind turbine blade (5) towards a position defining minimum pivot angle or towards a position defining maximum pivot angle. Upon determining that tilt moment reduction is required, azimuth position of each of the wind turbine blades (5) is monitored, and the biasing force applied to each wind turbine blade (5) is changed as a function of azimuth position for wind turbine blades (5) in at least some azimuth positions above a horizontal level or for wind turbine blades (5) in at least some azimuth positions below the horizontal level.

公开(公告)号：WO2021089098A1

公开(公告)日：2021-05-14

申请号：PCT/DK2020/050302

申请日：2020-11-05

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： NIELSEN, Thomas S. Bjertrup ,  DALSGAARD, Søren ,  SØRENSEN, Kim Hylling

IPC: F03D1/06 ,  F03D7/02

Abstract: The invention is about a method for controlling a wind turbine with a variable rotor area. The wind turbine comprises a rotor with one or more rotor blades (103) which are arranged hinged at an adjustable pivot angle (α), where the variable rotor area depends on the pivot angle, and where the pivot angle is adjustable dependent on a variable pivot force (F) provided by a pivot actuator (301). The method comprises determination of a maximal pivot force based on the input operational parameter which relate to an actual load or a predicted load of the wind turbine, determining a desired pivot force based on a desired operational performance of the wind turbine, and determining a pivot force set-point to be applied to the pivot actuator based on the desired pivot force so that the pivot force set-point is equal to or below the maximal pivot force.

公开(公告)号：WO2019219138A1

公开(公告)日：2019-11-21

申请号：PCT/DK2019/050147

申请日：2019-05-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： DALSGAARD, Søren ,  NETO, Julio Xavier Vianna

IPC: F03D7/02 ,  F03D17/00

Abstract: The invention relates to a method for detecting and controlling whirling oscillations of the blades of a wind turbine. The detection of the whirling oscillations is based on measurement signal indicative of blade oscillations, and a rotation-transformation of the measurement signal from a measurement frame into at least one target frame based on the whirling oscillation frequency. The rotation-transformation comprises a backward or forward rotation transformation direction relative to a rotor rotation direction. The control is based on an oscillation component obtained from the rotation-transformed measurement signal where the oscillation component is indicative of the whirling oscillation in the backward and/or forward rotation direction.

公开(公告)号：WO2019120419A1

公开(公告)日：2019-06-27

申请号：PCT/DK2018/050375

申请日：2018-12-18

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： DALSGAARD, Søren ,  NEUBAUER, Jesper Lykkegaard ,  SØRENSEN, Kim Hylling ,  BRØCHNER, Jacob ,  MIRANDA, Erik Carl Lehnskov ,  BØTTCHER, Peter ,  NETO, Julio Xavier Vianna ,  PETERSEN, Torben

IPC: F03D1/02 ,  F03D7/04 ,  F03D7/02

Abstract: A method for controlling a multirotor wind turbine (1) is disclosed. A first operational state of each of the energy generating units (5) of the wind turbine (1) is obtained. A difference in thrust acting on at least two of the energy generating units (5) is detected. At least one constraint parameter of the set of operational constraints is adjusted in accordance with prevailing operating conditions and in accordance with the detected difference in thrust, and a new operational state for at least one of the energy generating units (5) is derived, based on the at least one adjusted constraint parameter, the new operational state(s) counteracting the detected difference in thrust. Finally, the wind turbine (1) is controlled in accordance with the new operational states for the energy generating units (5).