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：US10247171B2

公开(公告)日：2019-04-02

申请号：US15181727

申请日：2016-06-14

Applicant: General Electric Company

Inventor： Benoit Philippe Armand Petitjean ,  Megan Wilson ,  Akshay Ambekar

IPC: F03D7/04 ,  F03D9/25 ,  G05B19/05 ,  F03D7/02 ,  H02S10/12

Abstract: A system and method for simultaneously coordinating a wake control system and a noise control system of a wind farm having a plurality of wind turbines is disclosed. The method includes determining, via a farm controller, one or more wake control set points for the wake control system. Further, the method includes determining, via the farm controller, one or more noise control set points for the noise control system. The method also includes selecting, via the farm controller, between the wake control set points and the noise control set points for each of the plurality of wind turbines. Thus, the method also includes sending, via the farm controller, the selected control set points to local controllers of the plurality of wind turbines and operating the wind farm based on the selected control set points.

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).