三相整流电路故障诊断技术  

Fault Diagnosis Technology of Three-Phase Rectifier Circuit

作　　者：崔忞慜 万鹏 CUI Minmin;WAN Peng(Military Representative Office of Navy Equipment Department in Nanjing,Nanjing 210016,China;Shanghai Marine Equipment Research Institute,Shanghai 200031,China)

机构地区：[1]海装上海局驻南京地区军事代表室,南京210016 [2]上海船舶设备研究所,上海200031

出　　处：《机电设备》2021年第6期78-83,共6页Mechanical and Electrical Equipment

摘　　要：三相整流器作为交直流不间断电源的核心,若不能及时对其进行故障诊断,可能会导致故障范围扩大,使系统越来越多的功能失效,造成巨大的安全隐患和经济损失。本文重点研究电力电子电路故障诊断及定位技术,基于小波分析提取故障特征向量,再对故障特征向量进行编码,最终实现通过BP神经网络算法进行故障诊断及定位。The three-phase rectifier is the core of the AC/DC uninterruptible power supply.If fault diagnosis cannot be performed in time,the fault range may be enlarged,more and more functions of the system will become invalid,and huge safety hazards and economic losses will be caused.Research on the fault diagnosis and location technology of power electronic circuits is carried out,the fault feature vector is extracted based on wavelet analysis,then the fault feature vector is encoded,finally the fault diagnosis and location is realized through the BP neural network algorithm.

关 键 词：电力电子电路 小波分析 神经网络 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]