一种多电站协同缺失数据插补方法及系统

By using a multi-power station collaborative missing data imputation method, dynamically selecting the optimal neighbor, combining adaptive graph learning and dynamic graph attention mechanisms, and utilizing TimesNet periodic folding technology, the problems of low computational efficiency and insufficient information utilization in multi-power station missing data repair are solved, achieving high-precision imputation results.

CN122220711BActive Publication Date: 2026-07-17SHANDONG UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV OF SCI & TECH
Filing Date
2026-05-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies suffer from low computational efficiency, weak periodic modeling capabilities, and insufficient utilization of information from multiple power plants when processing missing data from multiple power plants, thus failing to achieve accurate missing data repair.

Method used

A multi-power station collaborative missing data imputation method is adopted. The optimal neighbor set is selected through a dynamic multi-site selection mechanism. Combined with adaptive graph learning and dynamic graph attention mechanism, spatiotemporal features are explicitly extracted using TimesNet periodic folding technology for imputation.

Benefits of technology

It significantly improves interpolation accuracy and computational efficiency, effectively utilizes information from multiple power stations, dynamically adjusts spatiotemporal weights, and ensures the physical authenticity of periodic features and the accuracy of interpolation results.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122220711B_ABST
    Figure CN122220711B_ABST
Patent Text Reader

Abstract

本发明提供了一种多电站协同缺失数据插补方法及系统,涉及光伏发电技术领域,包括:获取目标站点所在区域中所有监测站点的原始功率时序数据、地理位置信息及缺失掩码;基于原始功率时序数据和地理位置信息,动态确定目标站点的最优邻居列表,并生成自适应邻接矩阵;通过动态图注意力机制,结合缺失掩码,动态调整所述自适应邻接矩阵的权重,并聚合空间信息得到空间聚合特征;基于空间聚合特征,利用TimesNet周期折叠技术,通过FFT检测主导周期并将一维序列折叠为二维张量,显式提取时空特征;将时空特征映射回原始数据空间得到插补结果;本发明能够在保证修补精度的前提下,极大提高缺失数据修复的速度。
Need to check novelty before this filing date? Find Prior Art