基于支持向量机的机载自耦变压整流器故障诊断方法  

Fault diagnosis method for airborne autotransformer rectifier units based on support vector machine

作　　者：陈宜尊 朱容更 邓晗应 张昕宇 CHEN Yizun;ZHU Ronggeng;DENG Hanying;ZHANG Xinyu(Civil Aviation University of China,Tianjin 300300)

机构地区：[1]中国民航大学,天津300300

出　　处：《电气技术》2024年第8期41-46,共6页Electrical Engineering

基　　金：天津市大学生创新创业项目基金(202210059136)。

摘　　要：航空自耦变压整流器(ATRU)是飞机电源系统的关键电气部件。为缩短电源设备运维时间、提高排故效率,本文提出一种针对飞机ATRU的故障诊断方法,通过提取ATRU出现不同故障时的时域与频域特征参数,进行支持向量机训练,形成ATRU故障判别系统,从而实现对ATRU的故障诊断。本文基于仿真得到的不同故障下ATRU关键节点的电信号,对信号的时域信息和频域信息进行特征提取和分析,利用支持向量机实现故障识别。仿真结果表明,本文所提方法可以快速、准确地实现ATRU故障诊断。Autotransformer rectifier units(ATRU)are key electrical components of aircraft power system.In order to shorten the operation and maintenance time of power supply equipment and improve the troubleshooting efficiency,this paper proposes a fault diagnosis method for airborne autotransformer rectifier units.The time domain and frequency domain characteristic parameters of different ATRU faults are extracted.Support vector machine is used for training to form an ATRU fault diagnosis system.This paper is based on the simulated electrical signals of key nodes of ATRU under different faults,extracts and analyzes the fault features of the signal waveform information,time domain information and frequency domain information,and uses the support vector machine to identify faults.The verification results show that the proposed method can identify ATRU faults quickly and accurately.

关 键 词：自耦变压整流器(ATRU) 特征参数 支持向量机 电能信号 

分 类 号：TM461[电气工程—电器]