公开(公告)号：EP3207246B1

公开(公告)日：2018-05-23

申请号：EP15781018.5

申请日：2015-10-08

Applicant: Vestas Wind Systems A/S

Inventor： KJÆR, Martin Ansbjerg ,  CAPONETTI, Fabio ,  COUCHMAN, Ian ,  THOMSEN, Jesper Sandberg ,  KRÜGER, Thomas ,  GARCIA, Jorge Martinez

IPC: F03D7/02

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.

公开(公告)号：EP3221581A1

公开(公告)日：2017-09-27

申请号：EP15801315.1

申请日：2015-11-20

Applicant: Vestas Wind Systems A/S

Inventor： ATZLER, Martin ,  SCHEEL, Thomas ,  SLOTH LARSEN, Lars Finn ,  KRÜGER, Thomas

IPC: F03D7/04

Abstract: A fast-converging and reliable method for estimating a wind speed at, for example, a wind turbine comprising a rotor carrying a set of variable pitch angle wind turbine blades. The estimated wind speed is iteratively derived using a wind turbine rotor rotational speed, a turbine blade pitch angle, and a derived initial estimated wind speed. The initial estimated wind speed is based on the rotational speed and an initial tip speed ratio. The initial tip speed ratio is selected to be a value greater than a minimum tip speed ratio, wherein the minimum tip speed ratio defines a control region stability limit as a function of the pitch angle. Thus, for a given pitch angle, a minimum tip speed ratio is derived as a limit or boundary point between a stable control region and an unstable control region.

Abstract translation: 公开了一种用于迭代地估计风力涡轮机处的风速的方法，所述风力涡轮机包括承载一组风力涡轮机叶片的转子，每个风力涡轮机叶片具有可变桨距角。 基于所获得的俯仰角θ，导出最小尖端速度比λmin。 最小端速比λmin定义了稳定和不稳定控制区域之间的界限。 初始末端速度比λinit>λmin被选择，并且基于初始末端速度比λint和所获得的转子的旋转速度ω来导出初始估计风速vinit。 基于获得的旋转速度ω和获得的俯仰角ω并且使用推导的初始估计风速vinit作为起点，迭代地导出估计的风速vest。 迭代过程快速可靠地收敛。

公开(公告)号：EP3180513A1

公开(公告)日：2017-06-21

申请号：EP15749981.5

申请日：2015-08-12

Applicant: Vestas Wind Systems A/S

Inventor： BRØDSGAARD, Martin ,  KRÜGER, Thomas

IPC: F03D7/04 ,  F03D7/02

CPC classification number: F03D7/0296 ,  F03D7/0224 ,  F03D7/046 ,  F05B2260/966 ,  Y02E10/723

Abstract: A wind turbine comprising a tower, a rotor including a plurality of blades, an electrical generator operatively coupled to the rotor, and a control system including an active damping module configured to monitor oscillatory motion of the wind turbine and to output a damping demand signal to damp the oscillatory motion. The control system is configured to perform a rotor imbalance determination process including: controlling the rotating frequency of the rotor so that it substantially coincides with the natural frequency of the tower, determining rotor imbalance data based on the damping demand signal and evaluating said rotor imbalance data to determine the presence of a rotor imbalance condition, and correcting the rotor imbalance condition by applying pitch control inputs to one or more of the plurality of blades so as to reduce the severity of the rotor imbalance. The invention may also be expressed as a method.

Abstract translation: 一种风力涡轮机，包括塔架，包括多个叶片的转子，可操作地联接到转子的发电机以及包括主动阻尼模块的控制系统，该主动阻尼模块被配置为监测风力涡轮机的振荡运动并将阻尼要求信号输出到 抑制振荡运动。 控制系统被配置为执行转子不平衡判定过程，该过程包括：控制转子的转动频率以使其基本与塔的固有频率一致;基于阻尼要求信号确定转子不平衡数据;以及评估所述转子不平衡数据 以确定转子不平衡状况的存在，并且通过向多个叶片中的一个或多个叶片施加桨距控制输入来校正转子不平衡状态，以便减小转子不平衡的严重性。 本发明也可以表示为一种方法。

公开(公告)号：EP3080446A1

公开(公告)日：2016-10-19

申请号：EP14816123.5

申请日：2014-12-05

Applicant: Vestas Wind Systems A/S

Inventor： CAPONETTI, Fabio ,  KRÜGER, Thomas ,  COUCHMAN, Ian ,  ARISTON, Ilias Konstantinos ,  BRØDSGAARD, Martin ,  GRUNNET, Jacob Deleuran ,  THOMSEN, Jesper Sandberg ,  MORTENSEN SIGFRED, Peter

IPC: F03D7/02 ,  F03D7/04

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。 该力被调节以抵消和阻尼振荡。 如果激活决定单元确定表征塔的振荡或负载的某些参数指示要求，和/或如果激活决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幅度，涡轮机结构中发生的负载的估计，是否可能需要在不久的将来阻尼的估计，是否使用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。

公开(公告)号：EP2841764A1

公开(公告)日：2015-03-04

申请号：EP13718103.8

申请日：2013-04-22

Applicant: Vestas Wind Systems A/S

Inventor： HAMMERUM, Keld ,  KRÜGER, Thomas

IPC: F03D7/02

CPC classification number: F03D7/0224 ,  F03D7/0264 ,  Y02E10/723

Abstract: A method for controlling an individually pitched wind turbine during shutdown is disclosed, the wind turbine comprising at least three wind turbine blades (1a, 1b, 1c). In response to a shutdown command for stopping operation of the wind turbine, a blade parameter of each of the wind turbine blades (1a, 1b, 1c), e.g. pitch angle, bending moment or blade acceleration, is determined. The blade parameters of the wind turbine blades (1a, 1b, 1c) are compared, and a shutdown strategy for the wind turbine is selected from a group of two or more predefined shutdown strategies, based on the comparing step. Finally, the wind turbine blades (1a, 1b, 1c) are moved towards a feathered position in accordance with the selected shutdown strategy.

Abstract translation: 公开了一种用于在关闭期间控制单独倾斜的风力涡轮机的方法，所述风力涡轮机包括至少三个风力涡轮机叶片（1a，1b，1c）。 响应于用于停止风力涡轮机的操作的关闭命令，每个风力涡轮机叶片（1a，1b，1c）的叶片参数，例如， 桨距角，弯矩或叶片加速度。 比较风力涡轮机叶片（1a，1b，1c）的叶片参数，并且基于比较步骤从一组两个或更多个预定义的关闭策略中选择风力涡轮机的关闭策略。 最后，风力涡轮机叶片（1a，1b，1c）根据所选择的关闭策略朝向羽化位置移动。

公开(公告)号：EP3436694A1

公开(公告)日：2019-02-06

申请号：EP17715903.5

申请日：2017-03-30

Applicant: Vestas Wind Systems A/S

Inventor： GRUNNET, Jacob Deleuran ,  KRÜGER, Thomas

IPC: F03D7/04 ,  F03D7/02

公开(公告)号：EP3080445A1

公开(公告)日：2016-10-19

申请号：EP14808823.0

申请日：2014-12-03

Applicant: Vestas Wind Systems A/S

Inventor： CAPONETTI, Fabio ,  BRØDSGAARD, Martin ,  KRÜGER, Thomas

IPC: F03D7/02

CPC classification number: F03D7/0224 ,  F03D7/024 ,  F03D7/0268 ,  F03D7/0276 ,  F03D7/0296 ,  F03D9/25 ,  F03D9/255 ,  F05B2260/96 ,  Y02E10/723 ,  Y02E10/725

Abstract: The invention presents a method for operating a horizontal axis wind turbine (1), the wind turbine comprising a tower (2) and a rotor (5) with at least one rotor blade (51), the rotor being connected to the tower, and being adapted to drive a generator (6) connected to a utility grid (8), wherein a pitch angle (A) of each rotor blade is adjustable, the method comprising detecting (905, 911), when the wind turbine is in an idling power producing situation in relation to the utility grid, a tower oscillation, and controlling (907, 913, 914, 915), when the wind turbine is in the idling power producing situation, the pitch angle of the at least one rotor blade so as to produce aerodynamic forces counteracting the detected tower oscillation.

Abstract translation: 本发明提出了一种用于操作水平轴线风力涡轮机（1）的方法，所述风力涡轮机包括具有至少一个转子叶片（51）的塔架（2）和转子（5），转子连接到塔架，以及 适于驱动连接到公用电网（8）的发电机（6），其中每个转子叶片的俯仰角（A）是可调节的，所述方法包括检测（905,911）当风力涡轮机处于空转状态 在风力发电机处于怠速发电状态时，与公用电网相关的动力产生状况，塔架振荡和控制（907,913,914,915），至少一个转子叶片的俯仰角为 以产生抵消检测到的塔振荡的空气动力。

公开(公告)号：EP3055557A1

公开(公告)日：2016-08-17

申请号：EP14789153.5

申请日：2014-10-06

Applicant: Vestas Wind Systems A/S

Inventor： KRÜGER, Thomas ,  ATZLER, Martin ,  CHRISTENSEN, Poul Brandt ,  BOWYER, Robert

IPC: F03D7/02 ,  F03D13/00

CPC classification number: F03D7/0292 ,  F03D1/00 ,  F03D7/0224 ,  F03D17/00 ,  F05B2270/332 ,  Y02E10/723

Abstract: Methods and systems for controlling a wind turbine in a manner that takes into account the degree of loading of and damage to one or more components of the turbine are provided. An operational load on a wind turbine part is determined, and is used to compute a damage signal. The damage signal is indicative of the potential damage to the component or to the turbine as a whole that will result if action is not taken to reduce or mitigate the determined load. When the damage signal exceeds a pre-determined threshold, load-reducing wind turbine control means are activated to obviate the estimated damage.

公开(公告)号：EP3436693A1

公开(公告)日：2019-02-06

申请号：EP17715902.7

申请日：2017-03-30

Applicant: Vestas Wind Systems A/S

Inventor： GRUNNET, Jacob Deleuran ,  KRÜGER, Thomas ,  ZAIB, Ali ,  THOMSEN, Jesper Sandberg

IPC: F03D7/04 ,  F03D7/02

公开(公告)号：EP2932093B1

公开(公告)日：2018-10-31

申请号：EP13802529.1

申请日：2013-12-04

Applicant: Vestas Wind Systems A/S

Inventor： KRÜGER, Thomas ,  CAPONETTI, Fabio

IPC: F03D7/02

CPC classification number: F03D7/0284 ,  F03D7/048 ,  F03D9/257 ,  F05B2270/337 ,  F05B2270/602 ,  Y02E10/723 ,  Y02E10/725

Abstract: The present invention relates to a method for regulating a flow of power between a wind power facility and a power grid connected thereto. The method comprises the steps of determining whether power is to be delivered to or absorbed from the power grid, and at least partly disabling or at least partly enabling one or more power consuming auxiliary systems in response to said determination. Moreover, an arrangement for delivering additional power to a power grid is provided.