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：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：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：EP3221582A1

公开(公告)日：2017-09-27

申请号：EP15801316.9

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, vest, 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, vest.

Abstract translation: 公开了一种用于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。 基于所获得的转子的旋转速度ω和获得风力涡轮机叶片的倾斜角θ，导出表示引入风力涡轮机叶片中的扭转的叶片扭转贡献。 调节后的桨距角θ'被计算为所获得的桨距角θ与推导出的叶片扭转贡献之和，并且基于所获得的旋转速度ω估算风速vest，并且计算 调整后的桨距角θ'。 由此获得准确和可靠的风速估计。 根据估计的风速，背心可以控制风力涡轮机。

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。