To improve the forecast accuracy of wind power and the generalization performance of the hybrid model
this paper proposes a hybrid medium-short-term wind power forecast model based on variational mode decomposition (VMD) coupled with bidirectional time convolutional network (BiTCN)
bidirectional long short-term memory network (BiLSTM)
and Attention mechanism. Furthermore
the model uses the improved crested porcupine optimizer (ICPO) to optimize the VMD decomposition parameters and the parameters of the hybrid model. Firstly
the ICPO is used to optimize the core VMD parameters ( value and penalty coefficient )
and the original wind power sequence is decomposed by VMD. Then
the ICPO is introduced to automatically optimize the hyperparameters of the BiTCN-BiLSTM-Attention deep learning model
and the ICPO-BiTCN-BiLSTM-Attention forecast model is established for each component after decomposition. Finally
the prediction values of each component are superimposed to obtain the final prediction value. The verification of a certain wind farm instance indicates that compared with the single forecast models and the conventional combination models
the coupling model proposed in this paper achieves remarkable enhancements in both prediction accuracy and generalization performance.
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references
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