公开(公告)号：US11815067B2

公开(公告)日：2023-11-14

申请号：US17843522

申请日：2022-06-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Spagnolo ,  Julio Xavier Vianna Neto ,  Karthik Vasudevan ,  Naga Srinivas Kamarajugadda ,  Fabio Caponetti

IPC: F03D7/02

CPC classification number: F03D7/026 ,  F05B2270/32 ,  F05B2270/327

Abstract: The invention relates to a method for controlling a wind turbine during start up, from a non-producing operation mode to a power producing operation mode when limit cycles occur during start-up. Limit cycles are detected when a number of cut-in transitions or a number of cut-out transitions are detected. A cut-in transition is when the wind turbine fails starting up despite having the wind speed or rotor speed normally required to enter a power producing operation mode. A cut-out transition is occurring when the wind turbine is falling out of power producing operation mode after having entered the power producing operation mode.