低压配电网表码值的异常检测与数据修复方法、装置、设备、存储介质和程序产品

By employing a three-tier cascaded architecture and intelligent attribution analysis, the problems of false alarm rate and missed alarm rate in the detection and repair of abnormal meter code values ​​in low-voltage distribution networks were solved, achieving efficient data repair and quality improvement.

CN122241545BActive Publication Date: 2026-07-17CHINA SOUTHERN POWER GRID DIGITAL GRID GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA SOUTHERN POWER GRID DIGITAL GRID GRP CO LTD
Filing Date
2026-05-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the methods for detecting abnormal meter readings in low-voltage distribution networks have high false alarm and false negative rates, and the data repair lacks the ability to attribute abnormalities, resulting in poor data repair performance.

Method used

An anomaly detection is performed using a three-layer cascaded architecture consisting of a statistical rule layer, a machine learning layer, and a physical constraint layer. Intelligent attribution analysis is then performed by combining multi-dimensional feature vectors and event log data to select a scenario-based repair method.

Benefits of technology

It reduced the false alarm rate and false negative rate of anomaly detection, achieved efficient data repair, and improved the quality and accuracy of table code values.

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Abstract

本申请涉及一种低压配电网表码值的异常检测与数据修复方法、装置、计算机设备、可读存储介质和程序产品,涉及电力系统数据处理技术领域。本申请能够降低误报率和漏报率并提高数据修复效果。方法包括:基于滑动窗口构建用于异常检测的多维特征向量;采用三层级联架构对多维特征向量进行异常检测,每层独立计算异常置信度后加权融合得到最终异常置信度,根据最终异常置信度和预设判定阈值进行异常判定,对于异常时刻,基于异常类型标签、事件匹配度和电表健康评分进行智能归因分析,得到用于指导修复的归因标签;根据归因标签从修复策略库中匹配修复方法,利用修复方法对异常时刻对应的异常表码值进行场景化数据修复,生成修复后的表码值序列。
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