公开(公告)号：US20130272891A1

公开(公告)日：2013-10-17

申请号：US13899099

申请日：2013-05-21

申请人： Peter GRABAU

发明人： Peter GRABAU

IPC分类号： F01D5/12

CPC分类号： F01D5/12 ,  F03D1/0641 ,  F03D1/0658 ,  F05B2240/301 ,  F05B2260/97 ,  Y02E10/721

摘要： Provided is a blade for a rotor of a wind turbine having a substantially horizontal rotor shaft, said rotor comprising a hub, from which the blade extends substantially radially when mounted, said blade having a chord plane extending between a leading edge and a trailing edge of said blade, a root area closest to the hub, an airfoil area furthest away from the hub, a transition area between the root area and the airfoil area, a first airfoil extending substantially along the entire airfoil area, and a second airfoil separately mounted to the blade, said second airfoil arranged at a mutual distance transverse to the chord plane and extending along the root area of the blades.

摘要翻译： 提供了一种用于风力涡轮机的转子的叶片，其具有基本上水平的转子轴，所述转子包括轮毂，所述转子在安装时基本上径向延伸，所述叶片具有在其前缘和后缘之间延伸的弦平面 所述叶片，最靠近轮毂的根部区域，离轮毂最远的翼型区域，根部区域和翼型区域之间的过渡区域，基本上沿整个翼型区域延伸的第一翼型件和分别安装到 叶片，所述第二翼型件以横向于弦平面的相互距离布置并且沿叶片的根部区域延伸。

公开(公告)号：US20130004312A1

公开(公告)日：2013-01-03

申请号：US13537898

申请日：2012-06-29

申请人： Michael FRIEDRICH ,  Peter GRABAU

发明人： Michael FRIEDRICH ,  Peter GRABAU

IPC分类号： F03D7/02 ,  F03D1/06

CPC分类号： F03D7/0204 ,  F05B2270/1095 ,  F05B2270/309 ,  F05B2270/321 ,  F05B2270/326 ,  Y02E10/721 ,  Y02E10/723

摘要： A method of controlling the yawing of two-bladed wind turbine is described. The yaw speed of the turbine is increased when the wind turbine rotor blades are in a substantially vertical position, and the yaw speed may be reduced when the blades are substantially horizontal. By modulating the yaw rate based on the rotational angle of the blades, the effect of the yaw moments on the wind turbine structure is reduced, and the wind turbine may be designed to take into account such reduced forces.

摘要翻译： 描述了控制双叶片风力涡轮机偏航的方法。 当风力涡轮机转子叶片处于基本垂直的位置时，涡轮机的偏转速度增加，并且当叶片基本上水平时可以减小偏航速度。 通过基于叶片的旋转角来调节偏航率，降低了风力涡轮机结构上的横摆力矩的影响，并且风力涡轮机可被设计成考虑到这种减小的力。

公开(公告)号：US20120321482A1

公开(公告)日：2012-12-20

申请号：US13524038

申请日：2012-06-15

申请人： Michael FRIEDRICH ,  Peter GRABAU

发明人： Michael FRIEDRICH ,  Peter GRABAU

IPC分类号： F03D1/06

CPC分类号： F03D7/0228 ,  F03D1/0641 ,  F05B2240/301 ,  F05B2240/302 ,  Y02E10/721 ,  Y02E10/723

摘要： A blade for a partial pitch wind turbine is described, wherein the blade has a truncated aerodynamic profile provided at the pitch junction of the blade. The truncated trailing edge acts to prevent the formation of a trailing edge gap during pitching between the trailing edges of the inner and outer blade sections of a partial pitch blade, thereby reducing the negative impact of air leakage, etc., when pitching a partial pitch blade.

摘要翻译： 描述了用于部分俯仰式风力涡轮机的叶片，其中叶片具有设置在叶片的节距结处的截面空气动力学轮廓。 截断的后缘用于防止在部分桨叶的内叶片和外叶片部分的后缘之间的俯仰期间形成后缘间隙，从而在俯仰部分节距时减小空气泄漏等的负面影响 刀。

公开(公告)号：US20120294723A1

公开(公告)日：2012-11-22

申请号：US13456735

申请日：2012-04-26

申请人： Peter GRABAU ,  Michael FRIEDRICH

发明人： Peter GRABAU ,  Michael FRIEDRICH

IPC分类号： F03D1/06

CPC分类号： F03D7/0228 ,  F03D1/0641 ,  F03D1/0675 ,  F03D7/0232 ,  F03D7/0256 ,  Y02E10/721 ,  Y02E10/723 ,  Y10S415/908 ,  Y10S415/914

摘要： A partial pitch wind turbine is described wherein the wind turbine blade has an inner blade section designed for stall-controlled operation and an outer blade section designed for pitch-controlled operation. The different blade profiles for the different sections allow for the efficient operation of the blade while providing for the control of the wind turbine to effectively reduce blade root moments. The outer blade sections can be pitched out of the wind to reduce root moments due to the outer blade sections, while the increasing power capture of the inner blade section maintains nominal power output.

摘要翻译： 描述了部分桨距风力涡轮机，其中风力涡轮机叶片具有设计用于失速控制操作的内叶片部分和设计用于俯仰控制操作的外叶片部分。 用于不同部分的不同叶片轮廓允许叶片的有效操作，同时提供风力涡轮机的控制以有效地减少叶片根部力矩。 外部叶片部分可以倾斜出风，以减少由于外部叶片部分引起的根部力矩，而内部叶片部分的增加的功率捕获保持标称功率输出。

公开(公告)号：US20120009064A1

公开(公告)日：2012-01-12

申请号：US13175414

申请日：2011-07-01

申请人： Peter BAEK ,  Peter GRABAU

发明人： Peter BAEK ,  Peter GRABAU

IPC分类号： F03D11/00

CPC分类号： F03D1/0641 ,  F03D1/0675 ,  F03D7/0232 ,  F05B2240/31 ,  F05B2240/311 ,  F05B2270/32 ,  F05B2270/331 ,  Y02E10/721 ,  Y02E10/723

摘要： The present invention relates to a wind turbine blade for a rotor of a wind turbine having a substantially horizontal rotor shaft. The blade may comprise a profiled contour comprising a pressure side and a suction side as well as a leading edge and a trailing edge, a chord extending between the leading edge and the trailing edge, and the profiled contour generating a lift when being impacted by an incident airflow. In a cross section of the wind turbine blade perpendicular to a lengthwise direction of the wind turbine blade, a suction side point is defined on the suction side at the trailing edge of the blade, and a pressure side point is defined on the pressure side at the trailing edge of the blade. The suction side point is movable in relation to the pressure side point, and the blade is further provided with a displacement device configured to displace the pressure side point and the suction side point so that a distance between the suction side point and the pressure side point can be varied. The present invention further relates to a wind turbine including such a wind turbine blade and to a method of operating a wind turbine including such a wind turbine blade.

摘要翻译： 本发明涉及一种用于风力涡轮机转子的风力涡轮机叶片，其具有基本上水平的转子轴。 叶片可以包括异形轮廓，其轮廓包括压力侧和吸力侧以及前缘和后缘，在前缘和后缘之间延伸的弦，并且轮廓轮廓在受到一个 事件气流。 在垂直于风力涡轮机叶片的长度方向的风力涡轮机叶片的横截面中，在叶片的后缘处的吸力侧上限定吸入侧点，并且压力侧点被限定在压力侧 叶片的后缘。 吸入侧点可以相对于压力侧点移动，并且叶片还设置有移动装置，其构造成使压力侧点和吸入侧点移位，使得吸入侧点与压力侧点之间的距离 可以变化。 本发明还涉及包括这种风力涡轮机叶片的风力涡轮机和涉及包括这种风力涡轮机叶片的风力涡轮机的方法。

公开(公告)号：US20120156051A1

公开(公告)日：2012-06-21

申请号：US13333116

申请日：2011-12-21

申请人： Peter GRABAU

发明人： Peter GRABAU

IPC分类号： F03D1/06

CPC分类号： F03D1/0641 ,  F05B2240/31 ,  Y02E10/721

摘要： A wind turbine blade is described wherein the blade comprises a hinged flap provided at the leading edge of the blade. The flap is arranged to hinge when the angle of attack of the incident airflow falls below a pre-defined angle, so that the aerodynamic profile of the blade is altered to reduce the magnitude of the negative lift coefficient of the blade. This reduces strain on the blade in such conditions, and associated fatigue loads on the blade and the wind turbine structure. The flap utilises simple biasing means, and does not require complicated sensor or actuation systems.

摘要翻译： 描述了一种风力涡轮机叶片，其中叶片包括设置在叶片前缘的铰接翼片。 当入射气流的迎角落在预定角度以下时，翼片被设置为铰链，使得叶片的空气动力学轮廓被改变以减小叶片的负升力系数的大小。 这样可以降低叶片在叶片和风力涡轮机结构上的应力。 翼片采用简单的偏置装置，不需要复杂的传感器或致动系统。

公开(公告)号：US20120321471A1

公开(公告)日：2012-12-20

申请号：US13524066

申请日：2012-06-15

申请人： Peter GRABAU

发明人： Peter GRABAU

IPC分类号： F03D1/06

CPC分类号： F03D7/0228 ,  F03D1/0675 ,  F03D13/10 ,  F05B2230/60 ,  F05B2240/302 ,  F05B2260/301 ,  F05B2260/79 ,  Y02E10/721 ,  Y02E10/723 ,  Y02E10/728 ,  Y02P70/523

摘要： A wind turbine blade is described having a pitch system coupling which is adapted to allow fasteners, such as bolts, of such a coupling to be tightened from the inside of the blade. This removes the need for relatively difficult and expensive external maintenance operations to tighten pitch coupling bolts. The coupling is arranged to present first and second internal bearing surfaces, against which the bolts of the pitch coupling can be tightened. The coupling may comprise a shaped end portion of an inner blade section, and/or the pitch system may comprise an additional bolting collar to facilitate this arrangement.

摘要翻译： 描述了一种具有俯仰系统联接器的风力涡轮机叶片，其适于允许这种联接器的紧固件（例如螺栓）从叶片的内部被紧固。 这消除了对相对困难和昂贵的外部维护操作的需要，以紧固螺距联接螺栓。 联接器布置成呈现第一和第二内部支承表面，螺距联接器的螺栓可以紧固在该支承表面上。 联接器可以包括内叶片部分的成形端部，和/或俯仰系统可以包括用于促进这种布置的附加螺栓接头。

公开(公告)号：US20120288371A1

公开(公告)日：2012-11-15

申请号：US13456694

申请日：2012-04-26

申请人： Peter GRABAU ,  Michael FRIEDRICH

发明人： Peter GRABAU ,  Michael FRIEDRICH

IPC分类号： F03D7/02

CPC分类号： F03D7/0228 ,  F03D1/0641 ,  F03D1/0675 ,  F03D7/0256 ,  F05B2270/1095 ,  Y02E10/721 ,  Y02E10/723 ,  Y02E10/726

摘要： A partial pitch wind turbine and an associated control method are described wherein the wind turbine blade comprises an inner blade section designed as a stall-controlled blade and an outer blade section designed as a pitch-controlled blade. During operation of the wind turbine, the outer blade sections are pitched out of the wind to reduce the lift force generated in the outer blade sections, thereby reducing the blade root moments due to reduced moment arms. Meanwhile, the inner blade sections continually produce increasing power output for increasing wind speed, thereby allowing for nominal power output to be maintained while effectively de-rating the outer blade sections.

摘要翻译： 描述了部分桨距风力涡轮机和相关联的控制方法，其中风力涡轮机叶片包括设计为失速控制的叶片的内叶片部分和被设计为俯仰控制叶片的外叶片部分。 在风力涡轮机的操作期间，外部叶片部分被倾斜出风，以减小在外部叶片部分中产生的提升力，从而由于减小的力矩臂而减小叶片根部力矩。 同时，内叶片部分连续地产生增加的功率输出以增加风速，从而允许保持额定功率输出，同时有效地降低外叶片部分的额定值。

公开(公告)号：US20120257982A1

公开(公告)日：2012-10-11

申请号：US13446715

申请日：2012-04-13

申请人： Peter GRABAU

发明人： Peter GRABAU

IPC分类号： F03D1/06

CPC分类号： F01D5/12 ,  F03D1/0641 ,  F03D1/0658 ,  F05B2240/301 ,  F05B2260/97 ,  Y02E10/721

摘要： Provided is a blade for a rotor of a wind turbine having a substantially horizontal rotor shaft, said rotor comprising a hub, from which the blade extends substantially radially when mounted, said blade having a chord plane extending between a leading edge and a trailing edge of said blade, a root area closest to the hub, an airfoil area furthest away from the hub, a transition area between the root area and the airfoil area, a first airfoil extending substantially along the entire airfoil area, and a second airfoil separately mounted to the blade, said second airfoil arranged at a mutual distance transverse to the chord plane and extending along the root area of the blades.

摘要翻译： 提供了一种用于风力涡轮机的转子的叶片，其具有基本上水平的转子轴，所述转子包括轮毂，所述转子在安装时基本上径向延伸，所述叶片具有在其前缘和后缘之间延伸的弦平面 所述叶片，最靠近轮毂的根部区域，离轮毂最远的翼型区域，根部区域和翼型区域之间的过渡区域，基本上沿整个翼型区域延伸的第一翼型件和分别安装到 叶片，所述第二翼型件以横向于弦平面的相互距离布置并且沿叶片的根部区域延伸。

公开(公告)号：US20120243992A1

公开(公告)日：2012-09-27

申请号：US13427042

申请日：2012-03-22

申请人： Peter GRABAU

发明人： Peter GRABAU

IPC分类号： F03D1/06

CPC分类号： F03D1/0675 ,  F03D7/0224 ,  F03D80/30 ,  Y02E10/721 ,  Y02E10/722 ,  Y02E10/723 ,  Y10S415/908

摘要： A partial pitch wind turbine blade in which the pitch system of the blade functions as a lightning receptor. As the pitch system is of a relatively large dimension, it is able to dissipate the effects of a lightning strike without damage, and removes the needs for additional blade features normally used to conduct lightning around or away from the pitch system.

摘要翻译： 部分桨距风力涡轮机叶片，其中叶片的桨距系统用作闪电接收器。 由于俯仰系统具有较大的尺寸，因此能够消除雷击的影响而不会受到损伤，并且消除了通常用于在俯仰系统周围或远离雷击的附加叶片特征的需要。