公开(公告)号：US20220412305A1

公开(公告)日：2022-12-29

申请号：US17775218

申请日：2020-11-05

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Thomas S. Bjertrup NIELSEN ,  Brian JØRGENSEN ,  Kim Hylling SØRENSEN ,  Julio Xavier Vianna NETO

IPC: F03D7/02 ,  F03D17/00 ,  F03D13/20

Abstract: A method for operating a wind turbine with hinged wind turbine blades is disclosed. The wind turbine comprises an adjustable biasing mechanism arranged to apply an adjustable biasing force to each wind turbine blade which biases the wind turbine blade towards a position defining a minimum pivot angle or towards a position defining maximum pivot angle. A biasing force is selected for each wind turbine blade and the selected biasing force is applied to the respective wind turbine blades. The wind turbine is operated while monitoring rotor unbalance of the wind turbine. In the case that the rotor unbalance exceeds a first threshold value at least one of the wind turbine blades is selected, and the biasing force applied to the selected wind turbine blade(s) is adjusted.

公开(公告)号：US20230020641A1

公开(公告)日：2023-01-19

申请号：US17787917

申请日：2020-12-18

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Erik SLOTH ,  Brian JØRGENSEN ,  Simon Stevns KAZAR ,  Anders Yde WOLLESEN

IPC: F03D1/06

Abstract: According to a first aspect of the invention, there is provided a wind turbine blade having a split blade configuration, comprising a first blade module defining an aerofoil profile and a second blade module defining an aerofoil profile; a damping module intermediate the first blade module and the second blade module; wherein the damping module comprises a first blade interface for joining to the first blade module and a second blade interface for joining to the second blade module. The damping module comprises a vibration damping unit.
Beneficially, the invention provides a useful way in which to integrate motion damping functionality into a modular wind turbine blade.

公开(公告)号：US20220381222A1

公开(公告)日：2022-12-01

申请号：US17776206

申请日：2020-11-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Thomas S. Bjertrup NIELSEN ,  Søren DALSGAARD ,  Brian JØRGENSEN ,  Kim Hylling SØRENSEN

IPC: F03D7/02 ,  F03D1/06

Abstract: A wind turbine comprising one or more wind turbine blades arranged to perform pivot movements between a minimum pivot angle and a maximum pivot angle, each wind turbine blade extending between an outer tip and an inner tip, wherein each wind turbine blade has an outer portion extending between the hinge and the outer tip and having a first length, and inner portion extending between the hinge and the inner tip and having a second length, wherein a coning angle of the blade carrying structure is larger than zero and/or a tilt angle of the rotor axis is larger than zero, and wherein a horizontal distance from the tower at a vertical position defined by a position of the hinge at tower passage to a point of connection between the blade carrying structure and the hub is equal to or less than the second length.