SYSTEM AND METHOD FOR MITIGATING LOADS ON A WIND TURBINE

摘要

A method for mitigating loads of a wind turbine (10) in response to one or more load sensors (65,66,67) failures. The method includes operating the wind turbine (10) in a standard operating mode through a controller (26), and monitoring loads of the wind turbine (10) through one or more load sensors (65,66,67). The standard operating mode includes a predetermined thrust set point and a predetermined cut-out wind speed set point. In response to detecting one or more load sensors (65,66,67) failures, the method includes enabling a protection operating mode in the controller (26) for a predetermined time period. More specifically, the protection operating mode includes reducing the predetermined thrust set point and the predetermined cut-out wind speed set point. A system for mitigating loads of a wind turbine (10) is also disclosed.