网络首发:2026-06-04,
纸质出版:2026
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李金辉, 王聪, 张宏立, 等. 基于双重特征识别的综合能源系统多元负荷预测[J]. 太阳能学报, 2026,47(5):58-69.
李金辉, 王聪, 张宏立, et al. 基于双重特征识别的综合能源系统多元负荷预测[J]. 2026, 47(5): 58-69.
李金辉, 王聪, 张宏立, 等. 基于双重特征识别的综合能源系统多元负荷预测[J]. 太阳能学报, 2026,47(5):58-69. DOI: 10.19912/j.0254-0096.tynxb.2024-2354.
李金辉, 王聪, 张宏立, et al. 基于双重特征识别的综合能源系统多元负荷预测[J]. 2026, 47(5): 58-69. DOI: 10.19912/j.0254-0096.tynxb.2024-2354.
为有效提取综合能源系统(IES)中数据的相关特征
并识别多元负荷预测任务中的重要特征
同时提高多元负荷的预测精度和速度
提出一种基于改进的卷积神经网络(CNN)和注意力机制的综合能源系统多元负荷短期预测模型
实现对多元负荷的双重特征识别和精确预测。首先
对数据进行相关性分析(ICEEMDAN)
筛选出与多元负荷相关性强的气象特征后
对电负荷、冷负荷和热负荷数据进行改进的自适应噪声完备集合经验模态分解
高效地将复杂的多元负荷时间序列分解为K个固有模态(IMFs)
并对IMFs进行相关性分析
筛选出关键IMFs。其次
利用CNN进行首次特征识别
提取数据的局部重要特征
再利用门控循环单元(GRU)捕捉时间序列数据的动态变化。然后
引入注意力机制实现双重特征识别
增强模型对关键特征的关注度
提高预测的准确性。最后
使用美国亚利桑那州立大学Tempe校区的多元负荷数据进行试验测试
同时采用相关模型进行对比分析。结果表明
所提方法的电、冷、热负荷平均绝对百分比误差分别为5.1%、4.23%及3.68%
相比其他模型具有更高的预测精度和更快的运算速率。
This paper proposes a method in order to effectively extract the relevant features of the data in the integrated energy system(IES)
identify the important features in the multi-load forecasting task
and improve the prediction accuracy and speed of multi-load forecasting. In this paper
a short-term prediction model of multiple loads in an integrated energy system based on an improved convolutional neural network(CNN) and an attention mechanism is proposed
which realizes dual feature recognition and accurate prediction of multiple loads. Firstly
the correlation analysis of the data is carried out to screen out the meteorological characteristics with strong correlation with multiple loads
and then improved complete ensemble empirical mode decomposition with adaptive noise (ICEEMDAN) is carried out on the electrical
cooling and heating load data
and the complex multi-load time series is efficiently decomposed into K intrinsic modes (IMFs)
and the correlation analysis of IMFs is carried out to screen out the key IMFs. Secondly
CNN is used for feature recognition
wherelocal important features of the data are extracted
and then the gated recurrent unit (GRU) is used to capture the dynamic changes of the time series data. Then
the attention mechanism is introduced to realize the dual feature recognition
enhance the attention of the model to the key features
and improve the accuracy of prediction. Finally
the multivariate load data of Arizona State University Tempe Campus were used for experimental testing
and comparative models were used for comparative analysis. The results show that the average absolute percentage errors of electrical
cooling and heating loads of the proposed method are 5.1%
4.23% and 3.68%
respectively
which has higher prediction accuracy and faster computational speed than other models.
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