Method, electronic device and storage media for monitoring a fatigue damage of a blade of a wind turbine unit

摘要

#$%^&*AU2018298513B220200702.pdf#####ABSTRACT The present disclosure provides a method, electronic device and storage media for monitoring a fatigue damage of a blade of a wind turbine unit. The method may comprise: acquiring real-time vibration data and wind speed data of a wind turbine unit; extracting an operational characteristic and an environment characteristic of a blade according to the vibration data, the wind speed data and a TF-IDF algorithm; combining the operational characteristic and the environment characteristic according to a failure mechanism of the blade, to obtain a non-periodic load characteristic of the blade; and determining an accumulated fatigue value of the blade over time according to the non-periodic load characteristic and a Palmgren-Miner (PM) fatigue theory. [Fig. 1]