公开(公告)号：WO2015051801A1

公开(公告)日：2015-04-16

申请号：PCT/DK2014/050317

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 ,  F03D11/00

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.

Abstract translation: 提供了以考虑到涡轮机的一个或多个部件的负载程度和损坏的方式来控制风力涡轮机的方法和系统。 确定风力涡轮机部件上的操作负载，并用于计算损伤信号。 损坏信号表示如果不采取行动来减小或减轻所确定的负载，则整体将对部件或涡轮机造成潜在的损害。 当损伤信号超过预定阈值时，降低风力涡轮机控制装置被激活以消除估计的损坏。

公开(公告)号：WO2013182204A1

公开(公告)日：2013-12-12

申请号：PCT/DK2013/050180

申请日：2013-06-07

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ATZLER, Martin ,  BRATH, Per ,  KRÜGER, Thomas ,  ZAIB, Ali

IPC: F03D7/02 ,  F03D7/04

CPC classification number: F03D7/044 ,  F03D7/0224 ,  F03D7/024 ,  F03D7/0296 ,  F03D7/043 ,  F05B2260/966 ,  F05B2270/331 ,  Y02E10/723

Abstract: A method of operating a wind turbine is provided. The wind turbine comprises a turbine rotor with at least two blades, each blade having a variable pitch angle. The method comprises determining mechanical loads on the blades, determining an asymmetric load moment experienced by the turbine rotor based on the mechanical loads on the blades, determining high order harmonics from the asymmetric load moment, and determining an individual pitch control signal for each of the blades for varying the pitch angle of each blade to compensate for the asymmetric load moment. The individual pitch control signal for each blade is determined at least based on the high order harmonics.

Abstract translation: 提供了一种操作风力涡轮机的方法。 风力涡轮机包括具有至少两个叶片的涡轮转子，每个叶片具有可变的俯仰角。 该方法包括确定叶片上的机械载荷，基于叶片上的机械负载确定涡轮转子经历的不对称载荷力矩，从非对称载荷力矩确定高次谐波，以及确定每个 用于改变每个叶片的俯仰角以补偿不对称载荷力矩的叶片。 至少基于高阶谐波确定每个叶片的各个俯仰控制信号。

公开(公告)号：WO2016078668A1

公开(公告)日：2016-05-26

申请号：PCT/DK2015/050353

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

CPC classification number: F03D7/0224 ,  F03D7/022 ,  F03D7/0276 ,  F03D7/046 ,  F03D17/00 ,  F05B2270/304 ,  F05B2270/32 ,  F05B2270/327 ,  F05B2270/328 ,  F05B2270/708 ,  G01P5/00 ,  G05B19/402 ,  G05B2219/2619 ,  Y02E10/723

Abstract: A method for iteratively estimating a wind speed at a wind turbine is disclosed, said wind turbine comprising a rotor carrying a set of wind turbine blades, each wind turbine blade having a variable pitch angle. A minimum tip speed ratio, λ min , is derived, based on an obtained pitch angle, θ. The minimum tip speed ratio, λ min , defines a limit between a stable and an unstable control region. An initial tip speed ratio, λ init > λ min , is selected, and an initial estimated wind speed, v init , is derived based on the initial tip speed ratio, λ int , and an obtained rotational speed, ω, of the rotor. An estimated wind speed, v est , is iteratively derived, based on the obtained rotational speed, ω, and the obtained pitch angle,ω, and using the derived initial estimated wind speed, v init , as a starting point. The iterative process converges fast and reliably.

Abstract translation: 公开了一种用于迭代地估计风力涡轮机的风速的方法，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的俯仰角。 基于获得的桨距角θ导出最小叶尖速度比λmin。 最小叶片速度比λmin定义了稳定和不稳定控制区域之间的极限。 选择初始尖端速度比λinit>λmin，并且基于初始尖端速度比λint和获得的转子转速ω导出初始估计风速vinit。 基于获得的转速ω和所获得的桨距角ω，并且使用得到的初始估计风速vinit作为起点，迭代地导出估计的风速背心。 迭代过程快速可靠地收敛。

公开(公告)号：WO2015135549A1

公开(公告)日：2015-09-17

申请号：PCT/DK2015/050036

申请日：2015-02-23

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： MIRANDA, Erik Carl Lehnskov ,  ATZLER, Martin ,  LI, Shuang ,  SCHELL, Thomas

IPC: F03D7/02

CPC classification number: F03D7/028 ,  F03D7/0224 ,  F05B2270/32 ,  F05B2270/3201 ,  Y02E10/723

Abstract: The invention relates to a method of controlling a wind turbine, the wind turbine comprising wind turbine blades attached to a rotor hub and a control system for pitching the blades relative to the rotor hub. The method comprises determining a wind speed and providing a normal pitch mode of operation to control the output power of the wind turbine, where the pitch mode of operation comprises pitch reference values in dependence of the wind speed. The output power of the turbine is controlled according to the normal pitch mode of operation as a function of the wind speed if the wind speed is lower than a first upper level wind speed threshold, and according to a modified mode of operation if the wind speed exceeds the first upper level threshold wind speed, wherein the modified mode of operation comprises decreasing the output power according to a de-rating function which is a function of time. The invention further relates to a control system for controlling a wind turbine according to the above mentioned control method.

Abstract translation: 本发明涉及一种控制风力涡轮机的方法，所述风力涡轮机包括附接到转子毂的风力涡轮机叶片和用于相对于转子毂倾斜叶片的控制系统。 该方法包括确定风速并提供正常的俯仰运行模式以控制风力涡轮机的输出功率，其中桨距运行模式包括根据风速的俯仰参考值。 如果风速低于第一上限风速阈值，则根据作为风速的函数的正常俯仰运行模式来控制涡轮机的输出功率，并且根据改变的操作模式，如果风速 超过第一上限阈值风速，其中修改的操作模式包括根据作为时间的函数的降额函数来降低输出功率。 本发明还涉及根据上述控制方法控制风力涡轮机的控制系统。

公开(公告)号：WO2016078669A1

公开(公告)日：2016-05-26

申请号：PCT/DK2015/050354

申请日：2015-11-20

Applicant: VESTAS WIND SYSTEMS A/S

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

IPC: F03D7/04

CPC classification number: F03D17/00 ,  F03D7/0224 ,  F03D7/0276 ,  F05B2240/221 ,  F05B2270/327 ,  F05B2270/328 ,  G01P5/00 ,  G05B17/02 ,  Y02E10/723

Abstract: A method for estimating a wind speed at a wind turbine is disclosed, said wind turbine comprising a rotor carrying a set of wind turbine blades, each wind turbine blade having a variable pitch angle. A blade torsion contribution, representing torsion introduced in the wind turbine blades, is derived, based on an obtained rotational speed, ω, of the rotor, and an obtaining a pitch angle, θ, of the wind turbine blades. An adjusted pitch angle, θ', is calculated as a sum of the obtained pitch angle, θ, and the derived blade torsion contribution, and a wind speed, v est , is estimated, based on the obtained rotational speed, ω, and the calculated adjusted pitch angle, θ'. An accurate and reliable estimate for the wind speed is thereby obtained. The wind turbine may be controlled in accordance with the estimated wind speed, v est .

Abstract translation: 公开了一种用于估计风力涡轮机的风速的方法，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的俯仰角。 基于所获得的转子旋转速度ω，获得风力涡轮机叶片中引入的扭矩的叶片扭转贡献，并获得风力涡轮机叶片的桨距角θ。 根据获得的转速ω，计算出所调节的桨距角θ'作为获得的桨距角θ与导出的叶片扭转贡献的和，并且基于所获得的转速ω估计风速背心， 调节桨距角θ'。 从而获得对风速的准确可靠的估计。 风力涡轮机可以根据估计的风速，背心来控制。

公开(公告)号：WO2015048972A1

公开(公告)日：2015-04-09

申请号：PCT/DK2014/050303

申请日：2014-09-26

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ATZLER, Martin ,  KRÜGER, Thomas ,  CHRISTENSEN, Poul, Brandt ,  HAMMERUM, Keld

IPC: F03D7/02

CPC classification number: F03D7/0204 ,  F03D7/0224 ,  F05B2270/32 ,  F05B2270/321 ,  F05B2270/329 ,  Y02E10/723

Abstract: A control method and apparatus for safe mode operation at high yaw error is described. A yaw error detection block (2) detects a yaw error. A load-reducing controller (4), for mitigating one or more structural loads associated with the yaw error, operates when a yaw error is detected, to engage a safe mode in which it operates to prevent the pitch angle applied to the individual wind turbine blades from falling below a minimum non-zero value.

Abstract translation: 描述了用于高偏航误差下的安全模式操作的控制方法和装置。 偏航误差检测块（2）检测偏航误差。 用于减轻与偏航误差相关联的一个或多个结构负载的减载控制器（4）在检测到偏航误差时操作，以接合其操作的​​安全模式，以防止施加到各个风力涡轮机的俯仰角 刀片从最低非零值下降。

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：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：EP3221581B1

公开(公告)日：2020-10-28

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

公开(公告)号：EP3117096A1

公开(公告)日：2017-01-18

申请号：EP15706670.5

申请日：2015-02-23

Applicant: Vestas Wind Systems A/S

Inventor： MIRANDA, Erik Carl Lehnskov ,  ATZLER, Martin ,  LI, Shuang ,  SCHELL, Thomas

IPC: F03D7/02

Abstract: The invention relates to a method of controlling a wind turbine, the wind turbine comprising wind turbine blades attached to a rotor hub and a control system for pitching the blades relative to the rotor hub. The method comprises determining a wind speed and providing a normal pitch mode of operation to control the output power of the wind turbine, where the pitch mode of operation comprises pitch reference values in dependence of the wind speed. The output power of the turbine is controlled according to the normal pitch mode of operation as a function of the wind speed if the wind speed is lower than a first upper level wind speed threshold, and according to a modified mode of operation if the wind speed exceeds the first upper level threshold wind speed, wherein the modified mode of operation comprises decreasing the output power according to a de-rating function which is a function of time. The invention further relates to a control system for controlling a wind turbine according to the above mentioned control method.

Abstract translation: 本发明涉及一种控制风力涡轮机的方法，所述风力涡轮机包括附接到转子轮毂的风力涡轮机叶片和用于相对于转子毂倾斜叶片的控制系统。 该方法包括确定风速并提供正常的俯仰运行模式以控制风力涡轮机的输出功率，其中桨距运行模式包括根据风速的俯仰参考值。 如果风速低于第一上限风速阈值，则根据正常的桨距运行模式来控制涡轮机的输出功率作为风速的函数，并且根据改变的运行模式，如果风速 超过第一上限阈值风速，其中修改的操作模式包括根据作为时间的函数的降额函数来降低输出功率。 本发明还涉及根据上述控制方法控制风力涡轮机的控制系统。