The Application Of Distribution Network Topology Analysis In The Theoretical Line Loss Calculation

Grid line loss is a comprehensive indicator in economy and technology, and theoretical line loss is a mirror, that reflects not only the grid structure and operation rationality, but also management and technological levels of power plant. Efficient management of line loss can help reduce line loss rate by measures as prompting distribution facilities and improving management efficiency.Based on the study of the current line loss managements, this paper presents the topology analysis of distribution network and realization of the new line loss management system on previously mentioned analysis at length, also analyses the calculation results of the system. The paper first presents the basic concepts of line loss and the basic principles of the loss calculation, and then the necessity of the distribution network topology analysis in distribution line loss is provided in detail. After analyzing the traditional calculation method, tree search method in distribution network topology analysis, a improved tree search method is introduced and realized in this line loss management system by database language SQL. Finally the table structures of oracle9i database in the system is introduced, and achievements of distribution network topology analysis are also realized and re-analyzed.