公开(公告)号：US11549486B2

公开(公告)日：2023-01-10

申请号：US17190293

申请日：2021-03-02

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Christian Jeppesen ,  Silvia Estelles Martinez

IPC: F03D7/02 ,  F03D17/00 ,  F03D7/04

Abstract: A method is provided for monitoring a pitch control system for a rotor blade of a wind turbine. The method comprises a step of receiving a blade pitch signal representative of a pitch position of the rotor blade, a step of determining a pitch deviation, based on the blade pitch signal and a blade pitch reference. If the determined pitch deviation exceeds a first pitch deviation threshold, a pitch deviation variable is increased by an amount that depends on the determined pitch deviation, the first pitch deviation threshold, and a duration of a time period during which the determined pitch deviation has been exceeding the first pitch deviation threshold. An error signal is provided when the increased pitch deviation variable exceeds a pitch deviation variable threshold.

公开(公告)号：US11692527B2

公开(公告)日：2023-07-04

申请号：US17142139

申请日：2021-01-05

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio Caponetti ,  Tobias Gybel Hovgaard ,  Christian Jeppesen ,  Silvia Estelles Martinez

IPC: F03D7/04 ,  F03D7/02

CPC classification number: F03D7/045 ,  F03D7/0224 ,  F05B2260/8211 ,  F05B2260/84 ,  F05B2270/20 ,  F05B2270/404

Abstract: The invention provides a method for controlling a wind turbine, including predicting behaviour of one or more wind turbine components such as a wind turbine tower over a prediction horizon using a wind turbine model that describes dynamics of the one or more wind turbine components or states. The method includes determining behavioural constraints associated with operation of the wind turbine, wherein the behavioural constraints are based on operational parameters of the wind turbine such as operating conditions, e.g. wind speed. The method includes using the predicted behaviour of the one or more wind turbine components in a cost function, and optimising the cost function subject to the determined behavioural constraints to determine at least one control output, such as blade pitch control or generator speed control, for controlling operation of the wind turbine.