LI Xinli, LUO Zhenglong, ZHANG Kui, et al. Multi-step Prediction of Wind Power Based on Multi-mode Feature Screening and Enhanced DeepAR[J]. 2026, 43(5): 1012-1022.
DOI:
LI Xinli, LUO Zhenglong, ZHANG Kui, et al. Multi-step Prediction of Wind Power Based on Multi-mode Feature Screening and Enhanced DeepAR[J]. 2026, 43(5): 1012-1022.DOI: 10.19725/j.cnki.1007-2322.2024.0167.
Multi-step Prediction of Wind Power Based on Multi-mode Feature Screening and Enhanced DeepAR
With the increasing installed capacity of new energy units
accurate prediction of wind power output has become crucial for realizing large-scale wind turbine grid-connection. To address the issue of multi-step prediction of wind power
a model of wind power prediction is proposed based on Bayes-DeepAR. Firstly
a multi-mode feature screening strategy is constructed
integrating the Pearson correlation coefficient
F-test and mean impact value algorithm to screen out the feature variable set that has a greater impact on wind power. Secondly
a DeepAR prediction model is proposed grounded in embedded-layer
long-short-term memory network layer and Gaussian distribution layer. The Bayes approach is utilized to optimize the hyperparameters of the model
aiming to achieve multi-step prediction. Finally
based on the prediction results
a comprehensive analysis on the error characteristics of time series multi-step prediction is conducted
containing indexes such as the horizontal error
vertical error and error accumulation. Compared to other prediction models
the simulation results demonstrate that the proposed multi-step prediction model not only achieves point prediction and probability interval prediction of wind power
but also improves the prediction accuracy.
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references
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