图论在农网系统可靠性分析中的应用

The Application of Graph Theory in the Reliability Analysis in Agriculture Power Network

本文运用典型供电网络介绍了如何用搜索树法求网络的最小路以及用对偶图法求最小割集,同时给出了这二类方法求系统可靠性指标的公式。通过实例求解了农网中单母分段带旁母这种典型变电所主接线可靠工作概率及故障率指标。

The necessity of reliability analysis in Agriculture Power network (APN) is set forth in this paper. Typical power supply network is used to introduee how to use the method of searching tree to search for the min-path and use the method of dual graph to search for the min-cut-set of the network. The formulas of these two methods,which are used to search out the reliability index in the network, are also presented. At last, with these methods, the reliable work probability index and failure rate index of main of wire splice of a typical substation in APN are worked out.