公开(公告)号：US20230049133A1

公开(公告)日：2023-02-16

申请号：US17794071

申请日：2021-02-23

Applicant: LM Wind Power A/S

Inventor： Jeremy HURAULT ,  Dongke SUN ,  Guannan WANG ,  Jesper MADSEN ,  Lars Bo HANSEN

IPC: F03D80/30 ,  F03D1/06

Abstract: A noise reduction element extends between a first end and a second end in a first direction. The noise reduction element extends between a third end and a fourth end in a second direction perpendicular to the first direction. The noise reduction element includes a base part configured to be attached to a trailing edge of a wind turbine blade. The base part has a first base part surface and a second base part surface. The base part extends between the first end and a first position in the first direction. The noise reduction element includes a first serration part having a serration pressure surface and a serration suction surface and extending in the first direction between the first position and the second end. The first serration part has a thickness in a third direction between the serration pressure surface and the serration suction surface.

公开(公告)号：US20240384700A1

公开(公告)日：2024-11-21

申请号：US18286886

申请日：2022-05-03

Applicant: LM WIND POWER A/S

Inventor： Andreas HERRIG ,  Trevor Howard WOOD ,  Guannan WANG

IPC: F03D1/06

Abstract: A wind turbine blade (10) comprising a pressure side (24) and a suction side (26), a leading edge (18) and a trailing edge (20). At least a portion of the blade (10) located in a trailing edge region (142) at or adjacent to the trailing edge (20) is a noise reducing portion defining an exposed surface and comprising a plurality of sound reducing or sound absorbing acoustic resonators (58), each of the resonators (58) comprising an opening (55) in the exposed surface and a cavity (56) having a length L between the opening (55) and a bottom (57) of the cavity opposite the opening (55).

公开(公告)号：US20230279835A1

公开(公告)日：2023-09-07

申请号：US18018321

申请日：2021-06-30

Applicant: GE WIND ENERGY GMBH ,  LM WIND POWER A/S ,  BLADE DYNAMICS LIMITED

Inventor： Benoit PETITJEAN ,  Guannan WANG ,  Andreas HERRIG ,  Jeremy HURAULT ,  Dongke SUN

IPC: F03D1/06

CPC classification number: F03D1/0633 ,  F05B2240/3042

Abstract: A trailing edge panel is configured to be attached to a trailing edge of a wind turbine blade and includes a base element and a number of protruding aerodynamic elements. The base element has an attachment part configured to be attached to and extend from the trailing edge of the wind turbine blade and to an upstream position on a first blade side of the wind turbine blade. The base element further has a serrated part extending from the second side of the attachment part and configured to project out from the trailing edge of the wind turbine blade, wherein the serrated part comprises a number of serrations, including a first serration and a second serration. The number of protruding aerodynamic elements, including a first protruding aerodynamic element, includes a first protruding part attached to the serrated part of the base element.