摘要
本文提出了一种基于电路功能分区诊断并建立直流故障字典,分步实施故障定位的电路故障诊断方法。该方法是在构成整个直流故障字典时,通过对电路的分析并结合对故障字典的计算机辅助分析,按电路功能将故障字典划分为若干个相互独立的故障小字典,对应不同的电路区域。实时诊断中先故障区域再故障元件,分步实施故障定位,减少了测试点,提高了实时故障诊断的效率。
In the present paper,a method of analogue circuit fault diagnosing which is carried out by generating and dividing the fault dictionary according to circuit function and locating the fault components step by step is introduced. After the fault dictionary of the whole circuit is created,we divide it into several small fault dictionaries according to the analysis of the circuit function and the computer simulation results. Every small dictionay correspond to a special region of components in the circuit. In real-time testing,the fault component will be found through two steps:first ,the fault component region,then the fault component. Since the number of nodes to test is cut down,the efficiency of real-time diagnosing is raised.
出处
《微计算机信息》
2009年第7期118-119,124,共3页
Control & Automation
基金
基金申请人:吴正国
本文受国家自然科学基金支持
基金名称:基于盲源信号处理的舰船电力系统故障预测方法研究(50677069)
关键词
电路功能分区
故障字典法
Circuit function region locating
Fault dictionary
作者简介
秦福星,男,1982年12月生,硕士,湖北红安人,主要研究方向:电路故障诊断;通讯地址:(430033市海军工程大学电气与信息工程学院智能工程系)秦福星
杨宣访,男,1968年3月生,博士,湖北天门人,主要研究方向:自动测试,电路故障诊断。