公开(公告)号：US20230014873A1

公开(公告)日：2023-01-19

申请号：US17786430

申请日：2020-12-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Keld THOMSEN ,  Claus T.S. ANDREASEN ,  Carsten Krogh NIELSEN ,  Sanath Kumar SATHISH

IPC: F03D17/00 ,  F03D7/02

Abstract: The invention relates to a method for monitoring yawing fault events of a yaw system of a wind turbine. The yaw system comprises one or more actuators for driving the yaw system and a holding system to resist yaw rotation. The yaw system is arranged to provide yaw rotation in response to a yaw control signal. According to the method, the monitored yaw angle is compared with the yaw control signal, and based on the comparison, a correlation between a monitored change in the yaw angle and the yaw control signal is determined. A yawing fault event is determined dependent on the determined correlation.