基于气象预报与卷积简化LSTM的风电功率预测Wind power prediction based on meteorological forecast and convolution simplified long short-term memory network
付文龙,邵孟欣,张海荣,李琳琳,杨钰琪,韩梓航
摘要(Abstract):
为提升超短期风电功率预测的准确性,提出了一种融合气象预报与卷积简化长短期记忆网络(ConvSLSTM)的高效预测模型。首先,针对风电数据中常见的异常值问题,采用箱线图法进行异常值检测,并结合K近邻互补法对检测出的异常值进行修正,以提升数据质量与可信度。其次,为简化模型输入并增强特征相关性,利用最大信息系数(MIC)筛选出与风电功率高度相关的气象因子,如风速与轮毂高度风速。在此基础上,结合长短期记忆网络(LSTM)引入卷积运算,强化特征提取能力,并设计交叉耦合的新型门控结构与窥视孔机制,以减少网络参数,提高模型训练效率。最后,结合历史数据与数值气象预报数据,基于ConvSLSTM模型对风电功率序列进行高精度预测。试验结果表明,所提模型在多个预测步长下,相较于无预报的ConvSLSTM、预报-LSTM与预报-Transformer等模型,其平均绝对误差(MAE)分别降低了42.18%、2.26%与32.66%。基于气象预报的ConvSLSTM模型展现出更高的预测精度、更强的鲁棒性与更优的泛化能力,充分验证了其在风电功率预测任务中的显著优势,具备良好的应用前景。
关键词(KeyWords): 卷积简化长短期记忆网络;箱线图法;K近邻互补法;数值气象预报
基金项目(Foundation): 湖北省自然科学基金(2022CFD170);; 湖北省重点研发计划项目(2022AAA007)
作者(Author): 付文龙,邵孟欣,张海荣,李琳琳,杨钰琪,韩梓航
DOI: 10.13928/j.cnki.wrahe.2025.S2.120
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