公开(公告)号：US10151296B2

公开(公告)日：2018-12-11

申请号：US14909320

申请日：2014-07-30

Applicant: Vestas Wind Systems A/S

Inventor： Dave Dent ,  Jonas Romblad ,  Sonia Salcedo Serra

IPC: F03D1/06 ,  F03D13/10

Abstract: A blade for a wind turbine defines an airfoil with a leading edge section and a trailing edge section, notably a flat-back trailing edge. A rounded connecting section interconnects a pressure side section of the airfoil and the trailing edge section. The rounded connecting section attaches to the pressure side section at a transition point, in which the pressure side section's tangent does not coincide with the rounded connecting section's tangent, so that the outer surface of the airfoil has a sharp corner at said transition point. The truncated radius, i.e. geometrical discontinuity, thus formed at the transition between the pressure side section and the trailing edge section increases the aerodynamically effective surface of the pressure side and enables forced and hence controlled flow separation without compromising ease of manufacture and structural stability of a fiber-reinforced structure making up a shell of the blade.

公开(公告)号：US09683551B2

公开(公告)日：2017-06-20

申请号：US14369524

申请日：2012-12-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Asger Svenning Andersen ,  Jesper Sandberg Thomsen ,  Jacob Krogh Kristoffersen ,  Ib Svend Olesen ,  Jonas Romblad

IPC: F03D7/02 ,  F03D7/04 ,  F03D17/00

CPC classification number: F03D7/0256 ,  F03D7/0224 ,  F03D7/042 ,  F03D7/046 ,  F03D17/00 ,  Y02E10/723

Abstract: The rotor blades of a wind turbine each have a plurality of fiber-optic pressure variation sensors which can detect the onset of a stall condition. The output of the stall condition sensors is input to a stall count circuit which increases a stall count signal each time a stall indication is received. The stall count signal is decayed exponentially over time and the current signal is summed with the decayed signal from a previous sampling period to form a value from which a stall margin is determined. An λ:θ curve of tip speed to wind speed ratio λ against pitch angle reference θ is then determined from the stall margin.

公开(公告)号：US20160177916A1

公开(公告)日：2016-06-23

申请号：US14909320

申请日：2014-07-30

Applicant: Vestas Wind Systems A/S

Inventor： Dave Dent ,  Jonas Romblad ,  Sonia Salcedo Serra

IPC: F03D1/06 ,  F03D1/00

CPC classification number: F03D1/0641 ,  F03D1/0675 ,  F03D13/10 ,  F05B2230/31 ,  F05B2230/41 ,  F05B2240/301 ,  F05B2250/71 ,  F05B2250/711 ,  Y02E10/721 ,  Y02P70/523

Abstract: A blade for a wind turbine defines an airfoil with a leading edge section and a trailing edge section, notably a flat-back trailing edge. A rounded connecting section interconnects a pressure side section of the airfoil and the trailing edge section. The rounded connecting section attaches to the pressure side section at a transition point, in which the pressure side section's tangent does not coincide with the rounded connecting section's tangent, so that the outer surface of the airfoil has a sharp corner at said transition point. The truncated radius, i.e. geometrical discontinuity, thus formed at the transition between the pressure side section and the trailing edge section increases the aerodynamically effective surface of the pressure side and enables forced and hence controlled flow separation without compromising ease of manufacture and structural stability of a fibre-reinforced structure making up a shell of the blade.

Abstract translation: 用于风力涡轮机的叶片限定具有前缘部分和后缘部分的翼型件，特别是平背后缘。 圆形连接部分将翼型件的压力侧部分与后缘部分相互连接。 圆形连接部分在压力侧部分的切线与圆形连接部分的切线不一致的过渡点附接到压力侧部分，使得翼型件的外表面在所述转变点处具有尖锐的拐角。 因此，在压力侧部分和后缘部分之间的过渡处形成的截头半径即几何不连续性增加了压力侧面的空气动力学有效表面，并且能够在不影响制造的容易性和易于制造的结构稳定性的情况下强制并因此控制流动分离 纤维增强结构组成叶片的外壳。

公开(公告)号：US20150125309A1

公开(公告)日：2015-05-07

申请号：US14366609

申请日：2012-12-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Steen M. Lauritsen ,  Jonas Romblad

IPC: F03D1/06 ,  F03D11/00

CPC classification number: F03D1/0675 ,  F03D80/40 ,  F05B2260/20 ,  F05B2260/64 ,  Y02E10/721

Abstract: A wind turbine blade having an elongated blade body extending along a longitudinal axis and having an upper skin and a lower skin, the lower skin spaced from the upper skin in a thickness direction of the blade body, the upper skin and/or lower skin having a laminated layer, the laminated layer having an outer layer wherein the outer layer forms part of the upper and/or lower skin respectively, an inner layer spaced from the outer layer in the thickness direction; and an intermediate layer sandwiched between the outer layer and inner layer, the intermediate layer having a plurality of heat transfer paths within the intermediate layer for transferring heat.

Abstract translation: 一种风力涡轮机叶片，其具有沿着纵向轴线延伸并且具有上部皮肤和下部皮肤的细长叶片主体，所述下部皮肤沿着所述叶片主体的厚度方向与所述上部皮肤间隔开，所述上部皮肤和/或下部皮肤具有 层叠层，所述层叠层具有外层，其中所述外层分别形成所述上表皮和/或下皮的一部分;在所述厚度方向上与所述外层隔开的内层; 以及夹在所述外层和所述内层之间的中间层，所述中间层在所述中间层内具有用于传递热量的多个传热路径。

公开(公告)号：US09745955B2

公开(公告)日：2017-08-29

申请号：US14366609

申请日：2012-12-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Steen M. Lauritsen ,  Jonas Romblad

IPC: F01D5/08 ,  F03D1/06 ,  F03D80/40

CPC classification number: F03D1/0675 ,  F03D80/40 ,  F05B2260/20 ,  F05B2260/64 ,  Y02E10/721

Abstract: A wind turbine blade having an elongated blade body extending along a longitudinal axis and having an upper skin and a lower skin, the lower skin spaced from the upper skin in a thickness direction of the blade body, the upper skin and/or lower skin having a laminated layer, the laminated layer having an outer layer wherein the outer layer forms part of the upper and/or lower skin respectively, an inner layer spaced from the outer layer in the thickness direction; and an intermediate layer sandwiched between the outer layer and inner layer, the intermediate layer having a plurality of heat transfer paths within the intermediate layer for transferring heat.

公开(公告)号：US20150003998A1

公开(公告)日：2015-01-01

申请号：US14366586

申请日：2012-12-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Steen M. Lauritsen ,  Jonas Romblad

IPC: F03D11/00 ,  F03D1/06

CPC classification number: F03D80/40 ,  F03D1/0675 ,  F05B2260/20 ,  Y02E10/721

Abstract: A wind turbine blade having an elongated blade body extending along a longitudinal axis and having an upper skin and a lower skin, the lower skin spaced from the upper skin in a thickness direction of the blade body, the upper skin and/or lower skin having a laminated layer, the laminated layer having an outer layer wherein the outer layer forms part of the upper and/or lower skin respectively, an inner layer spaced from the outer layer in the thickness direction; and an intermediate layer sandwiched between the outer layer and inner layer, the intermediate layer having a plurality of openings extending through the intermediate layer from the inner layer to the outer layer; and a plurality of corresponding heat conductor elements extending through the plurality of openings from the inner layer to the outer layer for transferring heat from the inner layer to the outer layer.

Abstract translation: 一种风力涡轮机叶片，其具有沿着纵向轴线延伸并且具有上部皮肤和下部皮肤的细长叶片主体，所述下部皮肤沿着所述叶片主体的厚度方向与所述上部皮肤间隔开，所述上部皮肤和/或下部皮肤具有 层叠层，所述层叠层具有外层，其中所述外层分别形成所述上表皮和/或下皮的一部分;在所述厚度方向上与所述外层隔开的内层; 以及夹在所述外层和所述内层之间的中间层，所述中间层具有从所述内层延伸穿过所述中间层到所述外层的多个开口; 以及多个相应的热导体元件，其从所述内层延伸穿过所述多个开口到所述外层，用于将热量从所述内层传递到所述外层。

公开(公告)号：US09759198B2

公开(公告)日：2017-09-12

申请号：US14366586

申请日：2012-12-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Steen M. Lauritsen ,  Jonas Romblad

IPC: F01D5/08 ,  F03D11/00 ,  F03D1/06 ,  F03D80/40

CPC classification number: F03D80/40 ,  F03D1/0675 ,  F05B2260/20 ,  Y02E10/721

Abstract: A wind turbine blade having an elongated blade body extending along a longitudinal axis and having an upper skin and a lower skin, the lower skin spaced from the upper skin in a thickness direction of the blade body, the upper skin and/or lower skin having a laminated layer, the laminated layer having an outer layer wherein the outer layer forms part of the upper and/or lower skin respectively, an inner layer spaced from the outer layer in the thickness direction; and an intermediate layer sandwiched between the outer layer and inner layer, the intermediate layer having a plurality of openings extending through the intermediate layer from the inner layer to the outer layer; and a plurality of corresponding heat conductor elements extending through the plurality of openings from the inner layer to the outer layer for transferring heat from the inner layer to the outer layer.

公开(公告)号：US20150030448A1

公开(公告)日：2015-01-29

申请号：US14369524

申请日：2012-12-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Asger Svenning Andersen ,  Jesper Sandberg Thomsen ,  Jacob Krogh Kristoffersen ,  Ib Svend Olesen ,  Jonas Romblad

IPC: F03D7/02 ,  F03D7/04

CPC classification number: F03D7/0256 ,  F03D7/0224 ,  F03D7/042 ,  F03D7/046 ,  F03D17/00 ,  Y02E10/723

Abstract: The rotor blades of a wind turbine each have a plurality of fibre-optic pressure variation sensors which can detect the onset of a stall condition. The output of the stall condition sensors is input to a stall count circuit which increases a stall count signal each time a stall indication is received. The stall count signal is decayed exponentially over time and the current signal is summed with the decayed signal from a previous sampling period to form a value from which a stall margin is determined. An λ:θ curve of tip speed to wind speed ratio λ against pitch angle reference θ is then determined from the stall margin.

Abstract translation: 风力涡轮机的转子叶片每个都具有多个光纤压力变化传感器，其可以检测失速状态的开始。 失速状态传感器的输出被输入到失速计数电路，每当收到失速指示时，该失速计数电路增加失速计数信号。 失速计数信号随时间呈指数衰减，并且将当前信号与来自先前采样周期的衰减信号相加以形成确定失速余量的值。 一个λ：＆thetas; 尖端速度与风速比λ相对于俯仰角参考曲线的曲线; 然后从失速边界确定。