公开(公告)号：US20160265511A1

公开(公告)日：2016-09-15

申请号：US14645763

申请日：2015-03-12

Applicant: General Electric Company

Inventor： Andreas Petersen ,  Saskia Gerarda Honhoff ,  Markus Koschinsky

IPC: F03D7/02 ,  G05B15/02 ,  F03D9/00 ,  F03D1/06 ,  F01P7/02 ,  F03D7/04

CPC classification number: F03D7/0296 ,  F01P7/02 ,  F03D1/06 ,  F03D7/0276 ,  F03D7/047 ,  F03D9/25 ,  F03D15/00 ,  F03D15/10 ,  F03D17/00 ,  F03D80/60 ,  F03D80/88 ,  F05B2260/20 ,  F05B2260/96 ,  F05B2270/303 ,  F05B2270/327 ,  F05B2270/333 ,  F05B2270/335 ,  G05B15/02 ,  Y02E10/721 ,  Y02E10/723

Abstract: The present disclosure is directed to a system and method for reducing noise associated with a wind turbine, more particularly fan noise when the wind turbine is operating under a reduced noise operating mode. More specifically, the method includes operating the wind turbine at a predetermined rotor speed that is associated with a predetermined power output. The method also includes receiving a request to operate in a reduced noise operating mode and in response to the request, reducing the predetermined rotor speed so as to provide a reduced power output. In response to reducing the predetermined rotor speed, another step includes reducing a speed of one or more cooling fans of the wind turbine.

Abstract translation: 本公开涉及一种用于降低与风力涡轮机相关联的噪声的系统和方法，更具体地说，当风力涡轮机在降低噪声运行模式下运行时，更具体地说是风扇噪声。 更具体地，该方法包括以与预定功率输出相关联的预定转子速度操作风力涡轮机。 该方法还包括接收在降噪操作模式中操作的请求，并且响应于该请求，减少预定的转子速度以便提供降低的功率输出。 响应于减小预定的转子速度，另一步骤包括降低风力涡轮机的一个或多个冷却风扇的速度。

公开(公告)号：US20170248127A1

公开(公告)日：2017-08-31

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

IPC: F03D80/80 ,  F03D13/20

Abstract: The present disclosure is directed to a system and method for reducing audible tonality of a wind turbine caused by vibrations generated by the drivetrain assembly thereof. The system 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 having vibration levels above a predetermined threshold. Thus, during operation of the wind turbine, the plurality of damping elements are configured to damp vibrations of the tower so noise generated thereby.

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

IPC: F03D80/80 ,  F03D13/20

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.