基于电力大数据的配电网故障预测方法及系统

By constructing an offline trajectory dataset and nearest-neighbor state graph based on power big data, and performing structural entropy minimization partitioning, the problem of multi-source data integration for distribution network fault prediction was solved, achieving accurate prediction and stability improvement of distribution network faults.

CN121350576BActive Publication Date: 2026-07-17LIAOYANG POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LIAOYANG POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY
Filing Date
2025-10-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing fault prediction methods for distribution networks rely on manual inspections and monitoring of single devices, making it difficult to integrate multi-source power data. This results in incomplete and inaccurate fault predictions, failing to meet the needs for accurate fault prediction and effective management of distribution networks.

Method used

Based on power big data, by constructing an offline trajectory dataset, a nearest neighbor state graph, and a structural entropy minimization partition, we obtain high-level, mid-level, and low-level sub-partition trees, perform hierarchical diffusion prediction modeling, construct a distribution network fault predictor, and introduce a structural entropy term for loss analysis.

Benefits of technology

It has improved the accuracy and reliability of power distribution network fault prediction, met the needs of accurate fault assessment and effective control, and enhanced the stability of prediction results.

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Abstract

本发明公开了基于电力大数据的配电网故障预测方法及系统,涉及大数据处理技术领域,方法包括:按照预设多维配电网采集指标,采集目标配电网的历史大数据构建离线轨迹数据集;提取该数据集结构信息构建近邻状态图;基于近邻状态图进行结构熵最小化划分,切割层次化划分树获得高、中、底层子划分树;接着进行分层建模,引入结构熵项进行损失分析构建配电网故障预测器,利用其执行故障预测。本发明解决了传统配电网故障预测难以精准整合多源电力数据、适配配电网多尺度层级以及保障预测鲁棒性的技术问题,达到了对配电网相关运行数据的有效处理、适配电网多层面结构并提升预测结果的稳定性,从而能够精准预判配电网故障的技术效果。
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