METHOD FOR DETECTING DAMAGE OF WIND TURBINE BLADE AND WIND TURBINE
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United States of America Patent
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Aug 27, 2015
app pub date -
Sep 29, 2014
filing date -
Feb 27, 2014
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Abstract
A method for detecting a damage of a wind turbine blade of a wind turbine rotor including a plurality of wind turbine blades includes: a strain data acquiring step of acquiring strain data representing strain of each of the plurality of wind turbine blades; a difference calculation step of calculating a difference between the strain data of a detection target wind turbine blade which is one of the wind turbine blades and a reference value reflecting the strain data of at least one comparison target wind turbine blade of other wind turbine blades; and a detection step of detecting the damage of the detection target wind turbine blade based on a trend of the difference calculated in the difference calculation step.
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