基于经验小波变换、循环神经网络和误差校正的短期风速预测

doi:10.1007/s12204-022-2477-7

J Shanghai Jiaotong Univ Sci ›› 2024, Vol. 29 ›› Issue (2): 297-308.doi: 10.1007/s12204-022-2477-7

基于经验小波变换、循环神经网络和误差校正的短期风速预测

朱昶胜，朱丽娜

（兰州理工大学计算机与通信学院，兰州 730050）

收稿日期:2020-11-12 接受日期:2021-04-02 出版日期:2024-03-28 发布日期:2024-03-28

Wind Speed Short-Term Prediction Based on Empirical Wavelet Transform, Recurrent Neural Network and Error Correction

ZHU Changsheng(朱昶胜), ZHU Lina^∗ (朱丽娜)

(School of Computer and Communication, Lanzhou University of Technology, Lanzhou 730050, China)

Received:2020-11-12 Accepted:2021-04-02 Online:2024-03-28 Published:2024-03-28

摘要/Abstract

摘要： 准确预测风速对于保证风电系统的稳定运行和提高风能利用率至关重要。然而，由于风速的随机性和间歇性，很难实现准确的风速预测。本文提出一种基于经验小波变换、循环神经网络和误差校正的新型混合式深度学习模型进行短期风速预测。该模型采用经验小波变换对原始风速序列进行分解；使用长短期记忆网络和Elman神经网络分别预测低频和高频分量，以平衡计算效率和预测精度；提出一种深度长短期记忆网络对预测误差进行修正。使用4个风速序列验证了该模型的有效性。实验结果表明，该方法在风速预测方面具有良好的性能。

关键词: 风速预测，经验小波变换，深度长短期记忆网络，Elman神经网络，误差校正策略

Abstract: Predicting wind speed accurately is essential to ensure the stability of the wind power system and improve the utilization rate of wind energy. However, owing to the stochastic and intermittent of wind speed, predicting wind speed accurately is difficult. A new hybrid deep learning model based on empirical wavelet transform, recurrent neural network and error correction for short-term wind speed prediction is proposed in this paper. The empirical wavelet transformation is applied to decompose the original wind speed series. The long short term memory network and the Elman neural network are adopted to predict low-frequency and highfrequency wind speed sub-layers respectively to balance the calculation efficiency and prediction accuracy. The error correction strategy based on deep long short term memory network is developed to modify the prediction errors. Four actual wind speed series are utilized to verify the effectiveness of the proposed model. The empirical results indicate that the method proposed in this paper has satisfactory performance in wind speed prediction.

Key words: wind speed prediction, empirical wavelet transform, deep long short term memory network, Elman neural network, error correction strategy

中图分类号:

TM614

朱昶胜，朱丽娜. 基于经验小波变换、循环神经网络和误差校正的短期风速预测[J]. J Shanghai Jiaotong Univ Sci, 2024, 29(2): 297-308.

ZHU Changsheng(朱昶胜), ZHU Lina^∗ (朱丽娜). Wind Speed Short-Term Prediction Based on Empirical Wavelet Transform, Recurrent Neural Network and Error Correction[J]. J Shanghai Jiaotong Univ Sci, 2024, 29(2): 297-308.

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基于经验小波变换、循环神经网络和误差校正的短期风速预测

Wind Speed Short-Term Prediction Based on Empirical Wavelet Transform, Recurrent Neural Network and Error Correction

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