For identificating rotor imbalance in wind turbine under varying wind directions
a method based on expert system and convolutional neural networks is proposed. Firstly
based on the response of rotor imbalances
an expert system for detection of rotor imbalance is proposed. It includes the identification
isolation and location of the rotor imbalance. Secondly
to address the impact of varying wind conditions on identification accuracy
a identification method based on convolutional neural network with training interference is proposed. The wind condition interference problem is reduced to a domain adaptive problem in the neural network for the identification of rotor imbalance. A variable probability Dropout method and a small Mini-batch are combined for training to simulate the uncertainty of wind. Finally
the cross-validation data set is established to verify and test the proposed method. The average accuracy is more than 98%
which proves the effectiveness of the proposed method.
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references
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