基于多尺度并行特征融合与Kolmogorov-Arnold网络重构的短期电力负荷预测OA
Short-term power load forecasting based on multi-scale parallel feature fusion and Kolmogorov-Arnold network reconstruction
针对短期电力负荷强非线性特征及传统分解-集成模型存在的特征交互不足与线性重构误差问题,提出了一种基于多尺度并行特征融合与柯尔莫哥洛夫-阿诺德网络(Kolmogorov-Arnold network,KAN)重构的短期负荷预测模型.首先,构建特征优选与信号分解策略,利用皮尔森相关系数-最大互信息系数(Pearson correlation coefficient-maximal information coefficient,PCC-MIC)综合相关性分析剔除冗余气象特征,并引入变分模态分解(variational mode decomposition,VMD)降低序列非平稳性.其次,设计 Informer 与时间卷积网络(temporal convolutional network,TCN)并行提取的双通道架构.然后,引入自适应门控融合机制(adaptive gated fusion mechanism,AGFM),通过学习时变权重系数,自适应调节不同时间步的特征关注度,实现了多尺度特征的精准融合.最后,引入KAN替代传统线性输出层,依托其可学习B-样条激活函数,实现了从高维融合特征到负荷数值的自适应非线性映射.算例分析表明,所提模型在多项评价指标上均优于现有主流模型,具有更高的预测精度,为电力系统规划和稳定运行提供了可靠的依据.
Addressing the strong nonlinearity of short-term power loads and the deficits of insufficient feature interaction and linear reconstruction errors in traditional decomposition-ensemble models,this paper proposes a short-term load forecasting model based on multi-scale parallel feature fusion and Kolmogorov-Arnold network(KAN)reconstruction.First,a feature optimization and signal decomposition strategy combining(Pearson correlation coefficient-maximal information coefficient(PCC-MIC)correlation analysis and variational mode decomposition(VMD)is established to filter redundant meteorological features and mitigate sequence non-stationarity.Second,a dual-channel architecture is designed for parallel extraction using Informer and temporal convolutional network(TCN).Then,an adaptive gated fusion mechanism(AGFM)learns time-varying weights to dynamically regulate feature attention of different time steps for precise multi-scale fusion.Finally,KAN is introduced to replace conventional linear output layers.Leveraging learnable B-spline activation functions,KAN enables adaptive nonlinear mapping from high-dimensional fused features to load values.Case studies demonstrate that the proposed model significantly outperforms mainstream baselines in prediction accuracy,offering a reliable reference for power system planning and stable operation.
于永进;鉴奕霖;刘琪;矫文书
山东科技大学电气与自动化工程学院,山东 青岛 266590山东科技大学电气与自动化工程学院,山东 青岛 266590山东科技大学电气与自动化工程学院,山东 青岛 266590山东科技大学电气与自动化工程学院,山东 青岛 266590
负荷预测Informer时间卷积网络自适应门控融合机制Kolmogorov-Arnold网络
load forecastingInformertemporal convolutional networkadaptive gated fusion mechanismKolmogorov-Arnold network
《电力系统保护与控制》 2026 (12)
176-187,12
This work is supported by the Youth Fund of National Natural Science Foundation of China(No.52307115). 国家自然科学基金青年项目资助(52307115)山东省自然科学基金项目资助(ZR2022ME219)
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