基于回路矩阵的水准网闭合差研究

Research on Closed Loop in Leveling Network Based on Graph Theory

水准网环闭合差是检验外业精度的重要指标之一。文章在图论和电路基础上,根据水准网观测数据构造邻接矩阵和关联矩阵,寻找网图的一棵树,同时利用基本回路矩阵的特殊性质来搜索水准网的全部闭合环路。详细介绍了图论树的提取方法及基本回路的形成过程,最后通过算例验证了该方法的可行、可靠和正确性。

This paper analyzed the inside and outside malfunction and corresponding protection of the capacitor, and exactly defined the installation principle of the present capacitor protects. Imbalance relay protection of capacitor has been analyzed and compared, which in terms of the primary and secondary device coordination, and provided the selecting type technological principle of this kind of protection.