公开(公告)号：US20170101979A1

公开(公告)日：2017-04-13

申请号：US14880346

申请日：2015-10-12

Applicant: General Electric Company

Inventor： James Robert Tobin ,  William Max Gobeli ,  Stefan Herr

IPC: F03D1/06

CPC classification number: F03D1/0658 ,  F03D1/0675 ,  F05B2230/80 ,  F05B2260/96 ,  Y02E10/721 ,  Y02P70/523

Abstract: The present disclosure is directed to a tip extension assembly for a rotor blade of a wind turbine. The tip extension assembly includes a tip extension having a body with a pressure side surface and a suction side surface. Further, the tip extension is slidable onto a tip of the rotor blade so as to overlap the rotor blade adjacent the tip. In addition, the tip extension defines an extended trailing edge of the rotor blade. Moreover, an edge of the tip extension defines a step profile at a transition region between the tip extension and a trailing edge of the rotor blade. The tip extension assembly also includes at least one chord extension configured for attachment adjacent to the edge of the tip extension so as to minimize the step profile and associated noise caused thereby.

公开(公告)号：US20160327020A1

公开(公告)日：2016-11-10

申请号：US14706024

申请日：2015-05-07

Applicant: General Electric Company

Inventor： James Robert Tobin ,  Stefan Herr ,  William Max Gobeli

IPC: F03D1/06

CPC classification number: F03D1/0675 ,  F03D1/0633 ,  F05B2230/60 ,  F05B2230/80 ,  F05B2240/302 ,  F05B2250/183 ,  F05B2260/96 ,  Y02E10/721 ,  Y02P70/523

Abstract: A method for installing an add-on component onto a tip of a wind turbine blade, the associated blade, and the component, are provided. The add-on component has a span-wise end and a separated trailing edge, and is slidable onto the blade tip. Strips of a double-sided adhesive tape are attached onto either or both pressure and suction side surfaces of the blade adjacent the blade tip, or onto interior surfaces of the add-on component, the tape strips having a release liner on an opposite exposed side thereof. An extension tail is configured with the release liner that extends beyond the span-wise end of the add-on component when the add-on component is placed and held at a desired position on the blade. The add-on component is slid onto and maintained in position on the blade tip and, starting from the tape strip furthest from the separated trailing edge, extension tails of the respective tape strips are sequentially peeled through the separated trailing edge and away from the add-on component.

Abstract translation: 提供了一种用于将附加组件安装到风力涡轮机叶片，相关联的叶片和部件的尖端上的方法。 附加组件具有跨度端和分离的后缘，并且可滑动到刀片尖端上。 双面胶带的条带附着在与叶片尖端相邻的叶片的压力和吸力侧表面上，或者附着到附加部件的内表面上，带条在相对的暴露面上具有剥离衬垫 其中。 当附加部件放置并保持在叶片上的期望位置时，延伸尾部配置有释放衬垫，该释放衬垫延伸超过附加部件的跨度端。 附加组件滑动并保持在叶片尖端上的适当位置，并且从最远离分离的后缘的带条开始，相应带条的延伸尾部依次剥离通过分离的后缘并远离加法 - 组件。

公开(公告)号：US20150118058A1

公开(公告)日：2015-04-30

申请号：US14472488

申请日：2014-08-29

Applicant: General Electric Company

Inventor： Ramesh Vedula ,  Kunal Upendra Sakekar ,  Jonathan Glenn Luedke ,  Stefan Herr ,  Scott Gabell Riddell ,  Michael Christopher Booth

IPC: F03D1/06

CPC classification number: F03D1/0658 ,  F03D1/0633 ,  F03D1/0675 ,  F05B2240/30 ,  F05B2240/301 ,  Y02E10/721

Abstract: In one aspect, a rotor blade assembly for a wind turbine may generally include a rotor blade extending lengthwise between a root and a tip. The rotor blade may include a pressure side and a suction side extending between a leading edge and a trailing edge. Additionally, the rotor blade assembly may include a chord extender having an attachment portion coupled to at least of the pressure side or the suction side and an extension portion extending outwardly from the attachment portion beyond the trailing edge. The extension portion may extend chordwise between a first end disposed adjacent to the trailing edge and a second end disposed opposite the first end. The extension portion may include a surface defined between the first and second ends. The extension portion may further include at least one stiffening rib projecting outwardly from the surface.

Abstract translation: 一方面，用于风力涡轮机的转子叶片组件通常可包括沿根部和尖端之间纵向延伸的转子叶片。 转子叶片可以包括在前缘和后缘之间延伸的压力侧和吸力侧。 另外，转子叶片组件可以包括弦延伸器，其具有连接到至少压力侧或吸力侧的附接部分和从附接部分向外延伸超过后缘的延伸部分。 延伸部分可以在邻近后缘设置的第一端和与第一端相对设置的第二端之间弦向延伸。 延伸部分可以包括限定在第一和第二端之间的表面。 延伸部分还可以包括从表面向外突出的至少一个加强肋。

公开(公告)号：US20140294595A1

公开(公告)日：2014-10-02

申请号：US13852241

申请日：2013-03-28

Applicant: General Electric Company

Inventor： Christian A. Carroll ,  Stefan Herr

IPC: F03D1/06

CPC classification number: F03D1/0633 ,  F03D1/0641 ,  Y02E10/721

Abstract: Rotor blade assemblies for wind turbines are provided. In one embodiment, a rotor blade assembly includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge each extending between a tip and a root. The rotor blade further defines a span and a chord. A span-wise portion of the pressure side includes along a chord-wise cross-section a plurality of inflection points. The plurality of inflection points include a first inflection point and a second inflection point, the first and second inflections points positioned within approximately 50% of the chord from the leading edge.

Abstract translation: 提供了用于风力涡轮机的转子叶片组件。 在一个实施例中，转子叶片组件包括具有限定压力侧，吸力侧，前缘和后缘的外表面的转子叶片，其各自在尖端和根部之间延伸。 转子叶片进一步限定跨度和弦。 压力侧的跨度部分沿着弦横截面包括多个拐点。 所述多个拐点包括第一拐点和第二拐点，所述第一和第二拐点位于所述前缘的和弦的大约50％内。

公开(公告)号：US20130224032A1

公开(公告)日：2013-08-29

申请号：US13663779

申请日：2012-10-30

Applicant: General Electric Company

Inventor： Bruce Clark Busbey ,  Ramesh Vedula ,  Stefan Herr ,  Revathy Murugappan ,  Satish Balusu ,  Thomas Joseph Fischetti

IPC: F01D5/12

CPC classification number: F03D1/0675 ,  F03D1/0633 ,  F05B2240/302 ,  F05B2250/311 ,  F05B2250/71 ,  F05B2260/30 ,  Y02E10/721

Abstract: A blade insert for coupling a first blade segment to a second blade segment is disclosed. The blade insert may include an aerodynamic body extending between a first end configured to be coupled to the first blade segment and a second end configured to be coupled to the second blade segment. The aerodynamic body may include a pressure side and a suction side extending between a leading edge and a trailing edge. In addition, the aerodynamic body may define a chord, wherein the chord at the first end is substantially equal to the chord at the second end.

Abstract translation: 公开了用于将第一叶片段联接到第二叶片段的叶片插入件。 刀片插入件可以包括在构造成联接到第一刀片段的第一端和被配置为联接到第二刀片段的第二端之间延伸的空气动力学主体。 空气动力体可以包括在前缘和后缘之间延伸的压力侧和吸力侧。 另外，空气动力体可以限定弦，其中第一端处的弦基本上等于第二端的弦。

公开(公告)号：US10400744B2

公开(公告)日：2019-09-03

申请号：US15141228

申请日：2016-04-28

Applicant: General Electric Company

Inventor： Andreas Herrig ,  Saskia Gerarda Honhoff ,  Stefan Herr ,  Jonathan Luedke ,  Kevin Kinzie

IPC: F03D1/06

Abstract: A wind turbine blade assembly includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge and a trailing edge, each extending between a blade tip and a root. The rotor blade additionally defining a span and a chord. The blade assembly further includes a plurality of micro boundary layer energizers positioned on a surface of the pressure side of the rotor blade. The plurality of micro boundary layer energizers extending one of above or below a neutral plane of the rotor blade. The micro boundary layer energizers are shaped and positioned chordwise to delay separation of a boundary layer at a low angle of attack. A wind turbine including the blade assembly is additionally disclosed.

公开(公告)号：US20190072068A1

公开(公告)日：2019-03-07

申请号：US15697573

申请日：2017-09-07

Applicant: General Electric Company

Inventor： Murray Fisher ,  Christian A. Carroll ,  Stefan Herr ,  Drew Adam Wetzel ,  Benjamin Patrick Hallissy ,  Andreas Herrig ,  Benoit Philippe Armand Petitjean

IPC: F03D1/06

Abstract: A method for mitigating noise during high wind speed conditions of a wind turbine includes providing a backward twist to the outboard region of the rotor blade having an angle of less than 6°. The method may also include reducing a tip chord taper within at least a portion of the outboard region of the rotor blade. Further, the method may include increasing a local tip chord length of the rotor blade. In addition, the method may include increasing a torsional stiffness of the outboard region of the rotor blade. As such, a combination of one or more of the blade properties described above are configured to reduce noise associated with high wind speed conditions.

公开(公告)号：US20190024631A1

公开(公告)日：2019-01-24

申请号：US15654775

申请日：2017-07-20

Applicant: General Electric Company

Inventor： James Robert Tobin ,  Christian A. Carroll ,  Stefan Herr ,  Jonathan Glenn Luedke

IPC: F03D1/06

Abstract: A rotor blade assembly for a wind turbine includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge each extending in a generally span-wise direction between an inboard region and an outboard region. The inboard region includes a blade root that is typically characterized by a rounded trailing edge. Further, the rotor blade assembly further includes at least one airflow separation element mounted to either or both of the pressure or suction sides of the rotor blade within the inboard region and adjacent to the rounded trailing edge. In addition, an edge of the at least one airflow separation element is configured to provide a fixed airflow separation location in the inboard region during standard operation. The rotor blade assembly also includes at least one airflow modifying element configured with the trailing edge of the rotor blade.

公开(公告)号：US10180125B2

公开(公告)日：2019-01-15

申请号：US14690726

申请日：2015-04-20

Applicant: General Electric Company

Inventor： Christian A. Carroll ,  Aaron A. Yarbrough ,  Stefan Herr

IPC: F03D1/06

Abstract: The present disclosure is directed to a rotor blade assembly for a wind turbine. The rotor blade assembly includes a rotor blade having exterior surfaces defining pressure and suction sides, and leading and trailing edges extending in a generally span-wise direction between an inboard region and an outboard region. The inboard region includes a blade root having a rounded trailing edge. Further, the rotor blade assembly further includes at least one airflow separation element mounted to either or both of the pressure or suction sides of the rotor blade within the inboard region and adjacent to the rounded trailing edge. In addition, the at least one airflow separation element corresponds to a contour of the pressure side or the suction side of the rotor blade. As such, the at least one airflow separation element is configured to provide a fixed airflow separation location in the inboard region during standard operation.

公开(公告)号：US20180258912A1

公开(公告)日：2018-09-13

申请号：US15454120

申请日：2017-03-09

Applicant: General Electric Company

Inventor： Stefan Herr ,  James Robert Tobin

IPC: F03D7/02 ,  F03D1/06 ,  F03D80/80

CPC classification number: F03D7/0232 ,  F03D1/0633 ,  F03D1/0675 ,  F05B2230/31 ,  F05B2240/221 ,  F05B2240/311 ,  F05B2270/402 ,  F05B2280/6013 ,  Y02E10/721 ,  Y02E10/723

Abstract: The present disclosure is directed to a rotor blade assembly for a wind turbine. The rotor blade assembly includes a rotor blade having surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a blade tip and a blade root. Further, the rotor blade assembly includes a flexible extension having a first end and a second end. More specifically, the first end is mounted to a surface of the rotor blade and the second end is free. As such, during operation of the wind turbine, the flexible extension passively adjusts with a changing angle of attack of the rotor blade, thereby reducing variations in blade loading.