网络首发:2026-06-04,
纸质出版:2026
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郭威, 徐立, 汤旭晶, 等. 基于相似日聚类和时序图像特征提取的光伏功率预测方法[J]. 太阳能学报, 2026,47(5):650-659.
郭威, 徐立, 汤旭晶, et al. 基于相似日聚类和时序图像特征提取的光伏功率预测方法[J]. 2026, 47(5): 650-659.
郭威, 徐立, 汤旭晶, 等. 基于相似日聚类和时序图像特征提取的光伏功率预测方法[J]. 太阳能学报, 2026,47(5):650-659. DOI: 10.19912/j.0254-0096.tynxb.2024-2355.
郭威, 徐立, 汤旭晶, et al. 基于相似日聚类和时序图像特征提取的光伏功率预测方法[J]. 2026, 47(5): 650-659. DOI: 10.19912/j.0254-0096.tynxb.2024-2355.
提出一种融合时序图像特征提取的混合深度学习光伏功率预测模型。首先
基于综合相关系数法构建多维气象特征筛选机制
实现关键影响因子的优化选择。其次
提出融合LB_Keogh距离的动态时间规整(DTW)度量方法
对K-中心点聚类算法进行改进
增强了算法的鲁棒性和聚类效率
实现了晴天、多云和阴雨天气模式的准确划分。最后
将选定的高相关性气象特征变量和历史光伏功率数据转换为二维格拉姆角场图像
输入到CSWin-Transformer模型进行功率预测。与对比模型相比
所提模型在3种典型天气工况下均表现出更高的预测精度。
This paper introduces a hybrid deep learning PV power prediction model that leverages feature extraction from time-series images. Firstly
a multi-dimensional meteorological feature screening mechanism was developed using the comprehensive correlation coefficient method to optimize the selection of key influencing factors. Secondly
an enhanced -Medoids clustering algorithm was proposed by incorporating a dynamic time warping (DTW) distance measure based on LB_Keogh distance
which improves the robustness and clustering efficiency of the algorithm and enables precise classification of sunny
cloudy
and rainy weather patterns. Finally
the selected high-correlation meteorological variables and historical PV power data were transformed into two-dimensional Gramian angular field images and fed into the CSWin-Transformer model for power prediction. Compared with other models
the proposed approach demonstrates superior prediction accuracy under three typical weather conditions
offering a novel methodology for PV power generation prediction.
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