
1.杭州迈拓大数据服务有限公司,杭州 310007
2.国网浙江省电力有限公司科技创新中心,杭州 310007
Received:03 July 2024,
Revised:2024-09-03,
Published:25 January 2025
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JI Shan,姜巍,景鑫.基于余弦相似度和图卷积网络的电力负荷预测方法[J].浙江电力,2025,44(01):68-75.
JI Shan,JIANG Wei,JING Xin.A power load forecasting method using cosine similarity and a graph convolutional network[J].ZHEJIANG ELECTRIC POWER,2025,44(01):68-75.
JI Shan,姜巍,景鑫.基于余弦相似度和图卷积网络的电力负荷预测方法[J].浙江电力,2025,44(01):68-75. DOI: 10.19585/j.zjdl.202501007.
JI Shan,JIANG Wei,JING Xin.A power load forecasting method using cosine similarity and a graph convolutional network[J].ZHEJIANG ELECTRIC POWER,2025,44(01):68-75. DOI: 10.19585/j.zjdl.202501007.
针对现有电力负荷预测模型难以深入提取时空关联特征,模型泛化能力弱,无法同时胜任短期和长期的电力负荷预测的问题,提出一种面向多用户的基于余弦相似度和全局-局部协同图卷积网络的电力负荷预测方法。首先,利用余弦相似度来学习不同节点负荷数据之间的相似模式,以提取深层次的时空关联特征。其次,对影响电力负荷变化趋势的静态全局因素和动态局部因素进行协同建模,以提升模型的泛化能力。最后,通过在一个实测数据集上进行的大量实验,验证了该方法在短期和长期负荷序列预测任务中同时具备有效性和稳定性。
To address the challenges of existing power load forecasting models, which struggle to deeply extract spatiotemporal correlation features and exhibit weak generalization capabilities—failing to simultaneously manage both short-term and long-term forecasting—this study proposes a multi-user power load forecasting method using cosine similarity and a global-local collaborative graph convolutional network. First, cosine similarity is utilized to learn similar patterns between load data from different nodes, allowing for the deep extraction of spatiotemporal correlation features. Second, a collaborative modeling approach is applied to static global factors and dynamic local factors that influence power load trends, enhancing the model’s generalization ability. Finally, extensive experiments on a real-world dataset demonstrate the method’s effectiveness and robustness in forecasting both short-term and long-term load series.
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