Wind turbine blade provided with optical wind velocity measurement system
    21.
    发明授权
    Wind turbine blade provided with optical wind velocity measurement system 有权
    风力发电机叶片配有光学风速测量系统

    公开(公告)号:US08917383B2

    公开(公告)日:2014-12-23

    申请号:US13512512

    申请日:2010-11-26

    Abstract: A wind turbine includes a number of blades and an optical measurement system comprising a light source, such as a laser, an optical transmitter part, an optical receiver part, and a signal processor. The light source is optically coupled to the optical transmitter part, which includes an emission point for emitting light in a probing direction. The optical receiver part comprises a receiving point and a detector. The optical receiver part is adapted for receiving a reflected part of light from a probing region along the probing direction and directing the reflected part of light to the detector to generate a signal used to determine a first velocity component of the inflow. The emission point is located in a first blade at a first radial distance from a center axis, and the receiving point is located in the first blade at a second radial distance from the center axis.

    Abstract translation: 风力涡轮机包括多个叶片和包括光源(例如激光器,光发射器部分,光接收器部分和信号处理器)的光学测量系统。 光源光学耦合到光发射器部分,其包括用于在探测方向上发射光的发射点。 光接收器部分包括接收点和检测器。 光接收器部分适于沿着探测方向接收来自探测区域的光的反射部分,并将光的反射部分引导到检测器,以产生用于确定流入的第一速度分量的信号。 发射点位于距离中心轴线的第一径向距离处的第一叶片中,并且接收点位于距离中心轴线的第二径向距离处的第一叶片中。

    Wind turbine blade with submerged boundary layer control means comprising crossing sub-channels
    22.
    发明授权
    Wind turbine blade with submerged boundary layer control means comprising crossing sub-channels 有权
    具有浸没边界层控制装置的风力涡轮机叶片包括穿过子通道

    公开(公告)号:US08550787B2

    公开(公告)日:2013-10-08

    申请号:US12733410

    申请日:2008-08-29

    Abstract: A wind turbine blade having a longitudinal direction with a root end and a tip end as well as a chord extending in a transverse direction between a leading edge and a trailing edge is described. The blade comprises a flow control surface with a suction side and a pressure side. A number of boundary layer control structures are formed in the flow control surface. The boundary layer control structures include a channel submerged in the flow control surface with a first end facing towards the leading edge and a second end facing towards the trailing edge of the blade. The channel further comprises a bottom surface extending from the first end to the second end. The channel at the first end comprises a first channel zone comprising a first sub-channel having a first cross-sectional area and a second sub-channel having a second cross-sectional area, the first sub-channel and the second sub-channel crossing each other at a point of crossing.

    Abstract translation: 描述了具有根端和尖端的纵向方向的风力涡轮机叶片以及在前缘和后缘之间沿横向方向延伸的弦线。 叶片包括具有吸力侧和压力侧的流动控制表面。 在流量控制面上形成有多个边界层控制结构。 边界层控制结构包括浸没在流动控制表面中的通道,其具有朝向前缘的第一端和朝向叶片后缘的第二端。 通道还包括从第一端延伸到第二端的底面。 第一端的通道包括第一通道区域,该第一通道区域包括具有第一横截面积的第一子通道和具有第二横截面积的第二子通道,第一子通道和第二子通道交叉 彼此在交叉点。

    WIND TURBINE BLADE WITH LONGITUDINALLY EXTENDING FLOW GUIDING DEVICE HAVING A PLATE-SHAPED ELEMENT
    23.
    发明申请
    WIND TURBINE BLADE WITH LONGITUDINALLY EXTENDING FLOW GUIDING DEVICE HAVING A PLATE-SHAPED ELEMENT 有权
    风力涡轮叶片具有长期延伸的流动导向装置,具有板形元件

    公开(公告)号:US20120201689A1

    公开(公告)日:2012-08-09

    申请号:US13500573

    申请日:2010-10-08

    Abstract: A wind turbine blade (10) for a rotor of a wind turbine (2) is provided with a longitudinally extending flow guiding device (70, 170) attached to the profiled contour. The flow guiding device comprises: a base (90, 190) having a first longitudinal end (91, 191) nearest the root end (16) and a second longitudinal end (92, 192) nearest the tip end (14), a first side (93, 193) nearest the leading edge (18) and a second side (94, 194) nearest the trailing edge (20), as well as a first surface (95, 195) and a second surface (96, 196), the first surface of the base being attached to the profiled contour, and the second surface facing away from the profiled contour. A longitudinally extending substantially plate-shaped element (97, 197) protrudes from the second surface (96, 196) of the base (90, 190).

    Abstract translation: 用于风力涡轮机(2)的转子的风力涡轮机叶片(10)设置有附接到成型轮廓的纵向延伸的流动引导装置(70,170)。 流动引导装置包括:具有最靠近根端(16)的第一纵向端(91,191)和最靠近末端(14)的第二纵向端(92,192)的底座(90,190),第一 最靠近前缘(18)的第二侧(93,193)和最靠近后缘(20)的第二侧(94,194)以及第一表面(95,195)和第二表面(96,196) 底座的第一表面附着在成型轮廓上,第二表面背离轮廓。 从基座(90,190)的第二表面(96,196)突出的纵向延伸的基本上板状的元件(97,197)。

    METHOD OF OPERATING A WIND TURBINE
    25.
    发明申请
    METHOD OF OPERATING A WIND TURBINE 审中-公开
    风力涡轮机的运行方法

    公开(公告)号:US20120070281A1

    公开(公告)日:2012-03-22

    申请号:US13320928

    申请日:2010-05-18

    Abstract: A wind turbine is operated with a blade in which a transition region is provided between a root region with a substantially circular or elliptical profile closest to a hub and an airfoil region with a lift generating profile furthest away from the hub. The transition region has a base part with an inherent non-ideal aerodynamic design so that a substantial longitudinal part of the base part without flow altering devices at a design point deviates from a target axial induction factor. A pitch of the blade and a rotational speed are adjusted to meet the target axial induction factor of the second longitudinal segment, and flow altering devices are provided so as to meet the target axial induction factor of the first longitudinal segment.

    Abstract translation: 风力涡轮机用叶片操作,其中过渡区域设置在最靠近轮毂的基本圆形或椭圆形轮廓的根部区域和具有离轮毂最远的提升产生轮廓的翼型区域之间。 过渡区域具有固有的非理想空气动力学设计的基部,使得在设计点处没有流动改变装置的基部的基本纵向部分偏离目标轴向感应系数。 调整叶片的间距和转速以满足第二纵向段的目标轴向感应系数,并且提供换流装置以满足第一纵向段的目标轴向感应系数。

    BLADE FOR A ROTOR OF A WIND TURBINE PROVIDED WITH BARRIER GENERATING MEANS
    26.
    发明申请
    BLADE FOR A ROTOR OF A WIND TURBINE PROVIDED WITH BARRIER GENERATING MEANS 审中-公开
    用于障碍物发电机构的风力发电机转子叶片

    公开(公告)号:US20100209258A1

    公开(公告)日:2010-08-19

    申请号:US12733403

    申请日:2008-08-29

    Abstract: A blade for a rotor of a wind turbine has a substantially horizontal rotor shaft, the rotor including a hub, from which the blade extends substantially in a radial direction when mounted to the hub. The blade includes a profiled contour including a leading edge and a trailing edge as well as a pressure side and a suction side, the profiled contour when being impacted by an incident airflow generating a lift. The profiled contour is divided into a root region with a substantially circular profile closest to the hub, an airfoil region with a lift generating profile furthest away from the hub, and a transition region between the root region and the airfoil region. The profile of the transition region gradually changes in the radial direction from the circular profile of the root region to the lift generating profile of the airfoil region. The suction side comprises at least a first zone, which extends substantially in the direction of the incident airflow, and which is positioned in a zone of a cross-flow. The first zone includes a first barrier generating means adapted to generating a barrier of airflow, which extends essentially in the direction of the incident airflow, the barrier of airflow being of sufficient strength and length so as to effectively reduce the cross-flow.

    Abstract translation: 用于风力涡轮机的转子的叶片具有基本上水平的转子轴,转子包括轮毂,当安装到轮毂时,叶片从该轮毂基本上沿径向方向延伸。 叶片包括外形轮廓,其包括前缘和后缘以及压力侧和吸力侧,当受到产生升力的入射气流的冲击时,轮廓轮廓。 成型轮廓被分成具有最靠近轮毂的基本上圆形轮廓的根部区域,具有离轮毂最远的升力产生轮廓的翼型区域以及根部区域和翼型区域之间的过渡区域。 过渡区域的轮廓在径向方向上从根部区域的圆形轮廓到翼型区域的升力产生轮廓逐渐变化。 吸入侧包括至少第一区域,其基本上沿着入射气流的方向延伸,并且位于交叉流动的区域中。 第一区域包括适于产生基本上沿着入射气流的方向延伸的气流障碍物的第一障碍物产生装置,气流阻挡层具有足够的强度和长度,以便有效地减少交叉流动。

    Wind turbine blade provided with flow altering devices
    29.
    发明授权
    Wind turbine blade provided with flow altering devices 有权
    具有流动改变装置的风力涡轮机叶片

    公开(公告)号:US08888453B2

    公开(公告)日:2014-11-18

    申请号:US13320946

    申请日:2010-05-18

    Abstract: A blade for a rotor of a wind turbine is divided into a root region closest to the hub and an airfoil region with a lift generating profile furthest away from the hub and a transition region. A base part of the transition region has an axial induction factor, which without flow altering device deviates at least 5% from a target axial induction factor. A number of first flow altering devices are arranged so as to adjust the aerodynamic properties of a longitudinal segment of the transition region to substantially meet the target axial induction factor.

    Abstract translation: 用于风力涡轮机的转子的叶片被分成最靠近轮毂的根部区域和具有离轮毂最远的升力产生轮廓的翼型区域和过渡区域。 过渡区域的基本部分具有轴向感应系数,其没有流动改变装置偏离目标轴向感应系数至少5%。 多个第一流动改变装置被布置成调节过渡区域的纵向段的空气动力特性以基本上满足目标轴向感应系数。

    Wind turbine blade with an auxiliary airfoil
    30.
    发明授权
    Wind turbine blade with an auxiliary airfoil 有权
    具有辅助翼型的风力涡轮机叶片

    公开(公告)号:US08834130B2

    公开(公告)日:2014-09-16

    申请号:US12935424

    申请日:2009-04-02

    Abstract: A blade for a rotor of a wind turbine having a substantially horizontal rotor shaft, the rotor comprising a hub, from which the blade extends substantially in a radial direction when mounted to the hub. The blade comprises a main blade part having a profiled contour comprising a pressure side and a suction side as well as a leading edge and a trailing edge with a chord extending between the leading edge and the trailing edge. The profiled contour generates a lift when being impacted by an incident airflow. The profiled contour is divided in the radial direction into a root region with a substantially circular or elliptical profile closest to the hub, the substantially circular or elliptical profile having a diameter, an airfoil region with a lift generating profile furthest away from the hub, and a transition region between the root region and the airfoil region. The profile of the transition region gradually changes in the radial direction from the circular or elliptical profile of the root region to the lift generating profile of the airfoil region. The blade further comprises a first auxiliary airfoil having a first pressure side and a first suction side as well as a first chord extending between a first leading edge and a first trailing edge. The first chord has a length that is 75% or less of the diameter of the substantially circular or elliptical profile in the root region and the first auxiliary airfoil is arranged so that it extends in the radial direction along at least a part of the root region of the main blade part with a distance there between.

    Abstract translation: 一种用于具有基本上水平的转子轴的风力涡轮机的转子的叶片,所述转子包括毂,当安装到所述毂时,所述叶片从所述叶片基本上沿径向方向延伸。 叶片包括主叶片部分,其具有包括压力侧和吸力侧的轮廓轮廓,以及前缘和具有在前缘和后缘之间延伸的弦的后缘。 异型轮廓在被入射气流撞击时产生电梯。 成型轮廓沿径向方向分成具有最靠近轮毂的大致圆形或椭圆形轮廓的根部区域,基本圆形或椭圆形轮廓具有直径,具有最远离轮毂的升力产生轮廓的翼型区域,以及 在根部区域和翼型区域之间的过渡区域。 过渡区域的轮廓在径向方向上从根部区域的圆形或椭圆形轮廓逐渐变化到翼型区域的升力产生轮廓。 叶片还包括具有第一压力侧和第一吸力侧的第一辅助翼型以及在第一前缘和第一后缘之间延伸的第一弦。 第一弦具有在根部区域中基本上圆形或椭圆形轮廓的直径的75%或更小的长度,并且第一辅助翼型被布置成使得其沿着根部区域的至少一部分在径向方向上延伸 的主叶片部分之间有一段距离。

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