数据稀缺场景下的配电网异常数据检测方法

曾瑞江; 李志勇; 黄曙; 王伟光

doi:10.11930/j.issn.1004-9649.202510085

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数据稀缺场景下的配电网异常数据检测方法

有源配电网安全高效运行与协同调控关键技术 | 更新时间：2026-08-04

- 数据稀缺场景下的配电网异常数据检测方法
- Abnormal data detection method for distribution networks in data scarcity scenarios
- 中国电力 2026年59卷第5期页码：67-75
- 作者机构：
  
  广东电网有限责任公司电力科学研究院,广东,广州,510000
- 作者简介：
- 基金信息：
  
  国家科技重大专项项目资助（2025ZD0804405）;中国南方电网科技项目资助（GDKJXM20230797）。
- DOI：10.11930/j.issn.1004-9649.202510085
  中图分类号：
- 网络首发：2026-05-15，
  
  纸质出版：2026
- 稿件说明：
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曾瑞江, 李志勇, 黄曙, 王伟光. 数据稀缺场景下的配电网异常数据检测方法[J]. 中国电力, 2026, 59(5): 67-75.

ZENG Ruijiang, LI Zhiyong, HUANG Shu, et al. Abnormal data detection method for distribution networks in data scarcity scenarios[J]. 2026, 59(5): 67-75.
曾瑞江, 李志勇, 黄曙, 王伟光. 数据稀缺场景下的配电网异常数据检测方法[J]. 中国电力, 2026, 59(5): 67-75. DOI： 10.11930/j.issn.1004-9649.202510085.

ZENG Ruijiang, LI Zhiyong, HUANG Shu, et al. Abnormal data detection method for distribution networks in data scarcity scenarios[J]. 2026, 59(5): 67-75. DOI： 10.11930/j.issn.1004-9649.202510085.

摘要

为了精准检测配电网电压、电流数据异常，并解决配电网正常运行状态下异常数据稀缺导致检测模型准确率较低等问题，提出一种基于改进的混沌优化算法（improved chaos optimization algorithm，ICEO）-双重注意力机制Transformer（dual attention mechanism-Transformer，DAM- Transformer）的异常数据检测方法。该方法首先利用强度可控的扩散异常合成方法（strength-controlled diffusion anomaly synthesis，SDAS）生成部分异常数据，以缓解真实异常样本稀缺导致模型识别准确率不足的问题；其次创新地提出了DAM-Transformer模型，通过融入双重注意力机制实现对不同时间尺度和特征空间中复杂模式的协同建模，有效提升配电网数据异常背景下多尺度特征耦合关系的辨识效果；最后采用ICEO对 DAM-Transformer 的超参数进行迭代优化，进一步改善模型的优化效率与复杂场景下的泛化性能。结果表明：该方法与传统模型对比，配电网异常电压识别准确率提升 12.81%、异常电流识别准确率提升 12.22%，在数据稀缺场景下的识别准确率显著优于传统模型。该方法有效解决了配电网异常数据识别中样本稀缺与多尺度特征建模难的核心瓶颈，提升了异常识别的精准性与模型运行稳定性，为智能配电网的数字化巡检、实时故障预警及运维决策优化提供了关键技术支撑，具有工程应用前景。

Abstract

In order to accurately detect abnormal voltage and current data in the distribution network and solve the problem of low accuracy of the detection model caused by the scarcity of abnormal data under normal operation of the distribution network

a method for detecting abnormal data based on an improved chaos optimization algorithm (ICEO) - dual attention mechanism Transformer (DAM Transformer) is proposed. This method first utilizes the strength controlled diffusion anomaly synthesis (SDAS) method to generate partial anomaly data

in order to alleviate the problem of insufficient model recognition accuracy caused by the scarcity of real anomaly samples; Secondly

an innovative DAM Transformer model was proposed

which integrates a dual attention mechanism to achieve collaborative modeling of complex patterns in different time scales and feature spaces

effectively improving the identification of multi-scale feature coupling relationships in the context of abnormal distribution network data; Finally

ICEO was used to iteratively optimize the hyperparameters of DAM Transformer

further improving the optimization efficiency and generalization performance of the model in complex scenarios. The results show that compared with traditional models

this method improves the accuracy of identifying abnormal voltage in distribution networks by 12.81% and the accuracy of identifying abnormal current by 12.22%. In data scarcity scenarios

the recognition accuracy is significantly better than traditional models. This method effectively solves the core bottleneck of sample scarcity and difficulty in modeling multi-scale features in abnormal data recognition of distribution networks

improves the accuracy of abnormal recognition and the stability of model operation

and provides key technical support for digital inspection

real-time fault warning

and operation and maintenance decision optimization of intelligent distribution networks. It has engineering application prospects.

关键词

Keywords

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