现代电子技术2026，Vol.49Issue(18)：125-131,7.DOI:10.16652/j.issn.1004-373X.2026.18.020
基于MLP-RF组合模型的配电网高阻接地故障检测方法
Method of distribution network HIF detection based on MLP-RF combined model
摘要
Abstract
High-impedance fault(HIF)is difficult to be accurately detected by traditional protection devices due to its low-magnitude fault current and inconspicuous waveform characteristics,and it has become a critical hidden danger in the operational safety of distribution networks.In allusion to the detection problem of HIF in medium-voltage distribution systems,a method of distribution networks HIF detection for based on combined model multi-layer perceptron(MLP)-random forest(RF)is proposed.An HIF equivalent model in 10 kV medium-voltage distribution networks is established,and zero-sequence current data under HIF and normal operating conditions are collected.The zero-sequence current data from two cycles after the fault occurrence are decomposed by means of variational mode decomposition(VMD),thereby extracting multi-scale time-frequency domain features to construct a high-quality feature dataset.The MLP-RF hybrid model is introduced to fully leverage the complementary strengths of the two methods.The simulation results demonstrate that the proposed method can realize high-precision fault identification across various operational scenarios and maintains strong robustness and generalization capability even under noise interference.关键词
配电网/高阻接地故障/多层感知机/随机森林/贝叶斯优化/变分模态分解Key words
distribution network/high impedance fault/multilayer perceptron/random forest/Bayesian optimization/variational mode decomposition分类
信息技术与安全科学引用本文复制引用
冯知程,肖迎群,张苏..基于MLP-RF组合模型的配电网高阻接地故障检测方法[J].现代电子技术,2026,49(18):125-131,7.基金项目
国家自然科学基金面上项目(52477093) （52477093）
国家科技重大专项课题(2024ZD0803405) （2024ZD0803405）
企业委托技术开发项目:变压器嵌入式同形共体传感器关键技术研究(B116A325Z224) （B116A325Z224）
