公开(公告)号：US20230204010A1

公开(公告)日：2023-06-29

申请号：US17923461

申请日：2021-04-29

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Anders SKAFTE ,  Gustavo Oliveira VIOLATO ,  Fabio CAPONETTI

IPC: F03D7/02 ,  F03D1/06 ,  F03D7/04

CPC classification number: F03D7/0224 ,  F03D1/06 ,  F03D7/042

Abstract: The present invention relates to blade monitoring of a wind turbine by actively promoting blade vibrations by imposing a pitch actuation signal. A method of operating a wind turbine is disclosed where for each blade of a wind turbine, vibrations of the blade are actively promoted by imposing a pitch actuation signal to the pitch actuator, and at least one parameter relating to the blade vibration is determined.

公开(公告)号：US20230349363A1

公开(公告)日：2023-11-02

申请号：US18004866

申请日：2021-06-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Anders SKAFTE

IPC: F03D17/00 ,  F03D7/04

CPC classification number: F03D17/00 ,  F03D7/042 ,  F05B2260/80 ,  F05B2270/309 ,  F05B2270/329 ,  F05B2270/807

Abstract: Systems, methods, and computer program products for determining an inclination of a wind turbine tower based on acceleration measurements by an accelerometer operatively coupled to a nacelle of the wind turbine. Acceleration data is collected from the accelerometer, which is configured to sense acceleration along an accelerometer axis while the nacelle is in each of a plurality of yaw positions. The nacelle is rotated in steps to each yaw position and stopped for a period of time. While the nacelle is stopped, acceleration data is collected, and a static level of acceleration determined along the accelerometer axis due to gravity. Once acceleration data has been collected at each of the positions, the minimum and maximum acceleration levels are identified. The inclination of the tower is then determined based on the minimum and maximum acceleration levels.