故障传播有向图在地面电源故障诊断的应用

摘要

Fault diagnosis methods based on graph theory can effectively narrow the search area of fault sources and find the real failed components in the shortest possible time. The fault diagnosis algorithm is studied for aircraft ground power based on fault propagation digraphs. Contraposing the physical structures of the power supply and related electrical characteristics the failure propagation digraph is obtained , and after some operations the digraphs with hierarchical reconstruction, finally, using the fault location algorithm simulated the process of fault location, which obtained very good results.%基于图论的故障诊断方法能够有效地缩小故障源的搜索范围,在最短的时间内找到真正产生故障的部件.采用故障传播有向图的方法对某飞行器地面电源故障诊断算法进行了研究,针对该飞行器地面电源的物理结构及相关的电气特性得到其故障传播有向图,并经过一些运算后将有向图进行了分层重构,最后利用故障定位算法模拟了故障定位的过程,得到了很好的效果.