公开(公告)号：US20240077057A1

公开(公告)日：2024-03-07

申请号：US17766969

申请日：2020-10-08

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Thomas S. Bjertrup NIELSEN ,  Peter Bjorn ANDERSEN ,  Soren DALSGAARD ,  Kim Hylling SORENSEN

IPC: F03D7/02 ,  F03D9/25 ,  H02P9/08

CPC classification number: F03D7/026 ,  F03D7/0239 ,  F03D9/255 ,  H02P9/08 ,  F05B2220/706 ,  F05B2240/2022 ,  F05B2260/85 ,  H02P2101/15

Abstract: A method for starting a wind turbine with hinged wind turbine blades, the wind turbine further comprising 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. The biasing mechanism is adjusted to apply a predefined biasing force to each wind turbine blade, and the pivot angle of each wind turbine blade is monitored. The wind turbine is started in the case that the pivot angle of at least one wind turbine blade exceeds a predefined pivot angle threshold.