Kunming Power Grid Of Theoretical Line Loss Calculation System Design And Realization

The three big targets of electric power produce is the security, high quality and economical. Loss ratio is the comprehensive target of economic efficiency and the technical management level in the electric power industry. At present, our country's energy loss can be cut down immensely. Completing the computation and the analysis of academic line loss has heavy responsibilities.Centering around the online system developing process of academic line loss in Kunming power grid, the goal, significance, process as well as the system perfect function of developing system are described in detail in this paper. The online computing system academic line loss in Kunming power grid adopts B/S and C/S system structure. This system's development mainly includes two aspects which is establishing backstage database as well as developing the application program. Its backstage database uses SQL-Server2000, and the onstage application program's development uses Microsoft Visual Studio the NET2003, and the real-time computation uses Borland Corporation's Delphi. The online computing system academic line loss in Kunming power grid is improved on basis of the traditional one; for example, using the graph transformation technology, this technology using graph to describing network topology structure, which raises the power grid modelling efficiency directly; Using the state estimation to filter the bad data, which enhances the system computation rapidity and stability; and so on. The most major characteristic of this system is able to real-time computation and processing, gain power grid operation data through the database interface from the dispatch automated system, and computate and analyze powerflow and academic line loss, so as to enhance its application value and the instruction function greatly.