With The Network Topology Analysis Method

As national economy's fast development, city and countryside's electricity consumption is increasing on and on. The traditional power distribution network's architecture hasn't satisfied the demand of the various trades and occupations'power supply already, thus the contradiction between power supply and demand becomes more and more prominent. In order to adapt the social demand, there is an urgent need to develop a new distribution management system to promote the automated level of power distribution management and operation.Distribution system is a system that faces the electric power final customer directly in the network's operation. A perfect, stable and reliable distribution system is a reliable guarantee to provide good service for customers. Distribution management system is an information management system which developed just for the guarantee of electric power system's safety, economy and high-quality operation.Distribution network topology analysis is the base of high class analyzing function in distribution management system, and the topology analyzing method's efficiency impacts the whole system's operative efficiency, so it is of great value in the theory and application to research it further.This paper sums the two popular topology methods, according to the characteristics of the distribution network, and then states the operation optimization of matrix operation and nodes of two levels to adjacent matrix.The tree search method needs recollection in the process of further searching which will increase the system's memory's consumption, so BFS is used in the essay. And it states a new method to fasten topology analyzing speed on the base of BFS: fast topology analyzing method. The optimization of common tree search method is to reduce the searching scope by reducing the scope of main line in distribution network to the factory level. Then it introduces the concept of dummy electric power inevitable. In the new topology analyzing method, the process includes dynamic topology and static topology. Basic data that is formed in the analysis of static topology in the process, and the node- switch relating table is ranked by the first character. It can reduce the data's searching scope. Have a whole network topology analysis when starting the system at the first time, and save the result into the data as the base for topology analyzing. In the process of dynamic analyzing, it needs to analyze the switch that has changed its state and change some topology data. It needn't operating to the whole network, and reduces the scope more which fasten the system's operation speed consequently.