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公开(公告)号：US20200072185A1
公开(公告)日：2020-03-05
申请号：US16118533
申请日：2018-08-31
Applicant: General Electric Company
Inventor： Guannan Wang , Benoit Philippe Petitjean , Andreas Herrig , Roger Drobietz
IPC: F03D1/06
Abstract: A rotor blade assembly for a wind turbine 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. The rotor blade assembly also includes at least one noise reducer adjacent to the trailing edge. The noise reducer(s) includes at least one serration extending beyond the trailing edge in a chord-wise direction of the rotor blade. The serration(s) also includes a suction side surface and a pressure side surface. The suction side surface defines a first radius of curvature in the chord-wise direction and the pressure side surface defines a second radius of curvature in the chord-wise direction. Further, the first radius of curvature may be larger than the second radius of curvature such that the suction side surface is flatter than the pressure side surface or vice versa.
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公开(公告)号：US20190170114A1
公开(公告)日：2019-06-06
申请号：US16269469
申请日：2019-02-06
Applicant: General Electric Company
Inventor： Lorenz Edwin Drack , Thierry Pascal Maeder , Roger Drobietz
IPC: F03D1/06
Abstract: A wind turbine blade includes a trailing edge including a radially inboard portion and a radially outboard portion opposite the radially inboard portion and a retrofit system coupled to the trailing edge. The retrofit system includes a mounting structure for coupling the retrofit system to the trailing edge and at least one serrated portion extending at least partially along the mounting structure. The serrated portion includes at least one substantially acoustically absorbent material. A method for reducing noise emission from a wind turbine blade including a trailing edge and retrofit system is also disclosed.
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公开(公告)号：US10746157B2
公开(公告)日：2020-08-18
申请号：US16118533
申请日：2018-08-31
Applicant: General Electric Company
Inventor： Guannan Wang , Benoit Philippe Petitjean , Andreas Herrig , Roger Drobietz
Abstract: A rotor blade assembly for a wind turbine 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. The rotor blade assembly also includes at least one noise reducer adjacent to the trailing edge. The noise reducer(s) includes at least one serration extending beyond the trailing edge in a chord-wise direction of the rotor blade. The serration(s) also includes a suction side surface and a pressure side surface. The suction side surface defines a first radius of curvature in the chord-wise direction and the pressure side surface defines a second radius of curvature in the chord-wise direction. Further, the first radius of curvature may be larger than the second radius of curvature such that the suction side surface is flatter than the pressure side surface or vice versa.
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公开(公告)号：US09995277B2
公开(公告)日：2018-06-12
申请号：US14447765
申请日：2014-07-31
Applicant: General Electric Company
Inventor： Andreas Herrig , Seongkyu Lee , Stefan Kern , Thierry Pascal Maeder , Benoit Philippe Petitjean , Roger Drobietz , Sujan Kumar Pal , Biju Nanukuttan
CPC classification number: F03D7/0296 , F03D7/045 , F03D7/048 , Y02E10/723
Abstract: A method for controlling a wind farm includes: receiving temperature data associated with a plurality of locations along a sound path between the wind farm and a sound immission point from one or more sensors; estimating a propagation characteristic of the sound path based at least in part on the temperature data; predicting a noise level at the sound immission point based at least in part on the propagation characteristic; determining a control signal for one or more wind turbines in the wind farm based at least in part on the noise level; and using the control signal to control the one or more wind turbines.
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公开(公告)号：US10408194B2
公开(公告)日：2019-09-10
申请号：US15052993
申请日：2016-02-25
Applicant: General Electric Company
Inventor： Roger Drobietz , Hans-Gerd Runde , Martin Duettmann , Andreas Petersen , Markus Koschinsky , Bernd Klaas
Abstract: A system and method for reducing audible tonality of a wind turbine caused by vibrations generated by the drivetrain assembly thereof includes a plurality of damping elements mounted at a plurality of locations on an inner surface of a tower of the wind turbine. The plurality of locations have vibration levels above a predetermined threshold. Thus, during operation of the wind turbine, the damping elements are configured to damp vibrations of the tower so as to reduce noise generated thereby.
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Patent Agency Ranking
公开(公告)号：US20160032892A1
公开(公告)日：2016-02-04
申请号：US14447765
申请日：2014-07-31
Applicant: General Electric Company
Inventor： Andreas Herrig , Seongkyu Lee , Stefan Kern , Thierry Pascal Maeder , Benoit Philippe Petitjean , Roger Drobietz , Sujan Kumar Pal , Biju Nanukuttan
CPC classification number: F03D7/0296 , F03D7/045 , F03D7/048 , Y02E10/723
Abstract: A method for controlling a wind farm includes: receiving temperature data associated with a plurality of locations along a sound path between the wind farm and a sound immission point from one or more sensors; estimating a propagation characteristic of the sound path based at least in part on the temperature data; predicting a noise level at the sound immission point based at least in part on the propagation characteristic; determining a control signal for one or more wind turbines in the wind farm based at least in part on the noise level; and using the control signal to control the one or more wind turbines.
Abstract translation: 一种用于控制风力发电场的方法包括：接收与沿着风场和来自一个或多个传感器的声音进入点之间的声音路径的多个位置相关联的温度数据; 至少部分地基于温度数据估计声音路径的传播特性; 至少部分地基于传播特性来预测声音输入点处的噪声电平; 至少部分地基于噪声水平确定风力发电场中的一个或多个风力涡轮机的控制信号; 以及使用所述控制信号来控制所述一个或多个风力涡轮机。
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公开(公告)号：US11268489B2
公开(公告)日：2022-03-08
申请号：US16269469
申请日：2019-02-06
Applicant: General Electric Company
Inventor： Lorenz Edwin Drack , Thierry Pascal Maeder , Roger Drobietz
IPC: F03D1/06
Abstract: A wind turbine blade includes a trailing edge including a radially inboard portion and a radially outboard portion opposite the radially inboard portion and a retrofit system coupled to the trailing edge. The retrofit system includes a mounting structure for coupling the retrofit system to the trailing edge and at least one serrated portion extending at least partially along the mounting structure. The serrated portion includes at least one substantially acoustically absorbent material. A method for reducing noise emission from a wind turbine blade including a trailing edge and retrofit system is also disclosed.
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公开(公告)号：US10767623B2
公开(公告)日：2020-09-08
申请号：US15952498
申请日：2018-04-13
Applicant: General Electric Company
Inventor： Guannan Wang , Benoit Philippe Armand Petijean , Roger Drobietz
IPC: F03D1/06
Abstract: 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. The rotor blade assembly also includes at least one noise reducer secured at the trailing edge. The noise reducer(s) includes at least one serration having a base portion and at least one side edge feature extending from the base portion. Further, the base portion extends along a first plane. The side edge feature(s) extends out of the first plane so as to reduce vortices generated by the serration(s).
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公开(公告)号：US20190316565A1
公开(公告)日：2019-10-17
申请号：US15952498
申请日：2018-04-13
Applicant: General Electric Company
Inventor： Guannan Wang , Benoit Philippe Armand Petitjean , Roger Drobietz
IPC: F03D1/06
Abstract: 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. The rotor blade assembly also includes at least one noise reducer secured at the trailing edge. The noise reducer(s) includes at least one serration having a base portion and at least one side edge feature extending from the base portion. Further, the base portion extends along a first plane. The side edge feature(s) extends out of the first plane so as to reduce vortices generated by the serration(s).
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公开(公告)号：US20150064003A1
公开(公告)日：2015-03-05
申请号：US14010628
申请日：2013-08-27
Applicant: General Electric Company
Inventor： Roger Drobietz
CPC classification number: F03D1/0641 , F03D1/0633 , F03D7/022 , F03D7/042 , F05B2240/122 , F05B2260/96 , Y02E10/721 , Y02E10/723
Abstract: A rotor blade assembly is provided having an airflow modifying element for suppressing airflow noise caused by a drain hole. The rotor blade assembly includes at least one rotor blade including a body shell extending between a blade root and a blade tip. Further, the rotor blade includes at least one drain hole having a diameter. The drain hole is configured within the body shell of the rotor blade. At least one airflow modifying element is configured on the body shell a predetermined distance from the drain hole such that the airflow modifying element reduces airflow noise caused by the drain hole. In one embodiment, the predetermined distance is substantially equal to the diameter of the drain hole.
Abstract translation: 提供一种转子叶片组件，其具有用于抑制由排水孔引起的气流噪声的气流调节元件。 转子叶片组件包括至少一个转子叶片，其包括在叶片根部和叶片尖端之间延伸的主体壳体。 此外，转子叶片包括具有直径的至少一个排水孔。 排水孔构造在转子叶片的主体壳体内。 至少一个气流调节元件构造在主体外壳上与排水孔预定距离，使得气流修正元件减少由排水孔引起的气流噪声。 在一个实施例中，预定距离基本上等于排水孔的直径。
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