基于图形建模的电力系统拓扑分析新方法

研究了电力系统的拓扑分析问题。电网图上元件之间的连接关系、带电着色、支路类型的判别、无阻抗元件的融合及节点编号等是能量管理系统(EMS)高级分析的基础,同时有利于系统调度员对系统的决策和判断。在图形建模的基础上,提出了一个利用深度优先搜索(DFS)实现电力系统拓扑分析的新方法,能在1次遍历后,实现带电着色、支路类型识别、节点编号及子网编号,相对于其他算法该算法效率较高。

A New Method for the Power System Topology Analysis Based on Graphic Modeling

The issue of topology analysis of a power system is studied. The linkage of the components, coloring for the electrified components, the branches type identification, the merging of impedance-free components and nodes numbering in the power network diagram are the basis for the energy management system (EMS), and are also very helpful for the dispatchers to make correct decisions and judgments. Based on the graphic modeling, a new algorithm using the depth first search strategy (DFS) to implement the topology analysis is presented. Through the new algorithm, such functions as identifying the electrified components and branches type, the merging of impedance-free components, numbering the nodes and subnets can all be completed by ransacking only once, with higher efficiency compared to other algorithms.