公开(公告)号：EP3117096B1

公开(公告)日：2020-04-22

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

公开(公告)号：EP2859225B1

公开(公告)日：2017-09-27

申请号：EP13730475.4

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机转子，每个叶片具有可变节距角。 该方法包括确定叶片上的机械负载，基于叶片上的机械负载来确定涡轮机转子经历的不对称负载力矩，根据不对称负载力矩确定高次谐波，并且确定用于每个叶片的单独桨距控制信号 叶片用于改变每个叶片的桨距角以补偿不对称的负载力矩。 至少基于高次谐波来确定每个叶片的各个桨距控制信号。

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：EP2859225A1

公开(公告)日：2015-04-15

申请号：EP13730475.4

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桨距角。 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，从不对称载荷力矩确定高次谐波，以及确定各个桨距控制信号 用于改变每个叶片的桨距角以补偿不对称负载力矩的叶片。 至少基于高次谐波来确定每个叶片的各个俯仰控制信号。