Ultra-short-term Wind Speed Forecasting Based on Spatio-temporal Graph Memory of Clustering Wind Turbine Group Association Topology

被引:0
|
作者
Pan C. [1 ]
Jiang D. [1 ]
Li B. [2 ]
Sun Y. [2 ]
Hao C. [2 ]
机构
[1] Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Northeast Electric Power University, Ministry of Education, Jilin Province, Jilin
[2] State Grid Jilin Electric Power Co., Ltd., Jilin Province, Changchun
来源
关键词
average wind speed of cluster; improved k-means clustering; optimal directed incidence topology; space-time graph memory network;
D O I
10.13335/j.1000-3673.pst.2023.0418
中图分类号
学科分类号
摘要
In order to improve the prediction accuracy and efficiency of the wind speed in large-scale wind farms, an optimal correlation topology of a clustering wind turbine group is proposed, and a spatio-temporal graph memory model is constructed to predict the wind speed. The average wind speed fluctuation characteristics of the cluster are analyzed, and the stability index is structured. Based on this, the k-means clustering is embedded to improve the intra-class wind speed complementarity. Combined with the mutual information quantitative analysis of the correlation between the sub-cluster fans, the optimal directed correlation topology is built. Based on the correlation topology and the wind speed correlation attributes, the spatial-temporal graph data set of the cluster wind speed is established by inputting the spatial-temporal graph memory network. The spatial features are extracted by the graph attention, and the time series information is processed by the memory network to output the ultra-short-term prediction results of the cluster average wind speed. Finally, the model is applied to the actual wind farm wind speed prediction, and the accuracy and effectiveness of the proposed method are verified through comparative analysis. © 2023 Power System Technology Press. All rights reserved.
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页码:4607 / 4618
页数:11
相关论文
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