ESTIMATING AND CONTROLLING LOADING EXPERIENCED IN A STRUCTURE

摘要

A method of estimating an amount of undesired loading experienced by at least a portion of a structure(100) is provided. The structure(100) may be, for example, a wind turbine generator (WTG) and the portion for which undesired loading is estimated may be, for example, a rotor (130) of the WTG. The method includes receiving a first signal characterizing instantaneous stress experienced by a component (140) of the structure(100) and filtering out at least a portion of the received first signal that corresponds to the desired loading experienced by the component to produce a first filtered signal. The amount of undesired loading experienced by the at least a portion of the structure(100) is estimated based at least partially on the first filtered signal.