基于图结构学习和负荷周期模式的短期电力负荷预测方法

By employing multi-scale temporal fine-grained input, similar graph learning, and dynamic non-stationary graph learning, combined with graph attention convolution and LSTM networks, spatial and temporal features are decoupled. This addresses the issues of poor graph structure quality and neglect of periodic patterns in short-term power load forecasting, achieving higher forecast accuracy and stability.

CN120706619BActive Publication Date: 2026-07-17ZHEJIANG UNIV OF FINANCE & ECONOMICS +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV OF FINANCE & ECONOMICS
Filing Date
2025-06-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing short-term power load forecasting methods face challenges such as poor graph structure quality, neglect of periodic patterns in load data, and coupling of spatial and temporal characteristics, resulting in insufficient forecast accuracy and reliability.

Method used

We employ a multi-scale temporal fine-grained input strategy, combining similar graph learning and dynamic non-stationary graph learning methods. Spatial features are extracted through graph attention convolution, temporal features are extracted through stacked LSTM networks, and spatial and temporal features are separated using a decoupling mechanism. Finally, prediction is performed through a multilayer perceptron.

Benefits of technology

It improves the accuracy and robustness of short-term power load forecasting, especially demonstrating strong robustness and real-time performance under non-stationary conditions.

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Abstract

本发明属于短期电力负荷预测领域,公开了一种基于图结构学习和负荷周期模式的短期电力负荷预测方法,包括获取多尺度时间细粒度的历史负荷数据作为输入数据;采用相似图学习方法处理输入数据得到相似性图,采用动态非平稳图学习方法处理输入数据得到动态非平稳图;从相似性图和动态非平稳图中提取空间特征,从输入数据中提取时间特征;基于解耦机制将空间特征和时间特征解耦,得到时空特征;融合输入数据和时空特征后,利用多层感知机预测输出未来短期电力负荷数据。本发明有效提高短期电力负荷预测的准确性。
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