公开(公告)号：WO2023002032A1

公开(公告)日：2023-01-26

申请号：PCT/EP2022/070660

申请日：2022-07-22

Applicant: LM WIND POWER A/S

Inventor： HERRIG, Andreas ,  ANDALAM, Satya Mohan Vamsi

IPC: F03D1/06 ,  F03D1/0658 ,  F05B2260/96

Abstract: The present disclosure relates to devices for wind turbine blades and methods for reducing vibrations in wind turbines. More particularly, the present disclosure relates to devices for mitigating vortex induced vibrations and stall induced vibrations, wind turbine blades comprising such devices, and methods for reducing wind turbine vibrations when the wind turbine is parked, especially during wind turbine installation and/or maintenance. A method for mitigating vibrations of a parked wind turbine comprises arranging a device in an inactive state with a wind turbine blade; and causing the device to transition to an active state in which the device grips the wind turbine blade more strongly than in the inactive state.

公开(公告)号：WO2022234118A1

公开(公告)日：2022-11-10

申请号：PCT/EP2022/062344

申请日：2022-05-06

Applicant: LM WIND POWER A/S

Inventor： HERRIG, Andreas ,  SCHOLTE-WASSINK, Hartmut ,  ANDALAM, Satya Mohan Vamsi

IPC: F03D1/06

Abstract: A wind turbine blade extending in a longitudinal direction between a root end and a tip end and comprising a shell having an outer surface defining a pressure side and a suction side, a leading edge and a trailing edge, a chord having a chord length extending between the leading edge and the trailing edge and a load-bearing structure extending in the longitudinal direction, the wind turbine blade further comprises a dampening system comprising a blade dampening body attached exteriorly to the load-bearing structure or exteriorly to the outer surface of the shell, at least a first dampener located within the blade dampening body and positioned with a component in the chordwise direction of the blade and adapted to absorb vibrational forces the wind turbine blade is subjected to.