arXiv:2602.14939eess.SYcs.LG2026-02被引 1

用自编码器检测电网故障,准确率超97%

Fault Detection in Electrical Distribution System using Autoencoders

  • 基于异常检测,用深度自编码器和卷积自编码器提取特征
  • 在模拟与公开数据集上分别达到97.62%和99.92%准确率
  • 参数少训练快,适合工业级实时故障监测

近年来,电力系统故障检测受到学术界和工业界的广泛关注。尽管过去十年发展了多种检测方法,但实际应用仍面临挑战。由于故障发生具有概率性,可从概率角度建模决策。保护系统需检测、分类并定位故障的电压与电流幅值,进而触发断路器隔离故障线路。有效故障检测系统的关键在于获取可靠训练与测试数据,但此类数据往往稀缺。利用深度学习,特别是模式分类器在学习、泛化与并行处理方面的优势,为智能故障检测提供了新路径。本文提出一种基于异常的电网故障检测方法,采用深度自编码器,并引入卷积自编码器(CAE)进行降维。由于参数更少,其训练时间显著低于传统自编码器。实验表明,该方法在模拟数据集和公开数据集上分别实现97.62%和99.92%的准确率,优于现有方法。

原文摘要 · Abstract (English)

In recent times, there has been considerable interest in fault detection within electrical power systems, garnering attention from both academic researchers and industry professionals. Despite the development of numerous fault detection methods and their adaptations over the past decade, their practical application remains highly challenging. Given the probabilistic nature of fault occurrences and parameters, certain decision-making tasks could be approached from a probabilistic standpoint. Protective systems are tasked with the detection, classification, and localization of faulty voltage and current line magnitudes, culminating in the activation of circuit breakers to isolate the faulty line. An essential aspect of designing effective fault detection systems lies in obtaining reliable data for training and testing, which is often scarce. Leveraging deep learning techniques, particularly the powerful capabilities of pattern classifiers in learning, generalizing, and parallel processing, offers promising avenues for intelligent fault detection. To address this, our paper proposes an anomaly-based approach for fault detection in electrical power systems, employing deep autoencoders. Additionally, we utilize Convolutional Autoencoders (CAE) for dimensionality reduction, which, due to its fewer parameters, requires less training time compared to conventional autoencoders. The proposed method demonstrates superior performance and accuracy compared to alternative detection approaches by achieving an accuracy of 97.62% and 99.92% on simulated and publicly available datasets.

故障检测自编码器电力系统深度学习

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