A Study On Graphical Analysis Software Of Electric Power System Based On B/S Mode

Analysis software of electric power system is the combination of electric technology, computer technology and information technology, which is necessary for power system programming, design, running and management. At present, most of domestic graphical analysis software are platform-based or C/S (Client/Server) mode-based. Compared with software based on B/S (Browser/Server) mode, they have some limitation in software installation, update and maintenance, etc. It is very significant and useful to design graphical electric power system analysis software based on B/S mode with the last word of computer technology.Three solutions have been presented: (1)with ASP.NET; (2)with Java applet; (3)with .NET Component. The third was chosen after a search and some compare.In this project a B/S mode has been designed on the flat of .NET, and a graphical .NET Component has also been designed with C# and OOP (Object Oriented Programming).For the .NET Component provides sufficient electric equipment models, it is convenient and efficient for the user to draw power system graph on the web browser. The system uses MATLAB Web Server as computational engine, and provides four types of computation, power flow optimal power flow reactive power pricing and available transfer capability. The data file necessary to the computation can be generated and uploaded to the computational server automatically by the .NET Component. The pivotal technology used in the drawing model and computing model is described in detail in this paper, and how to use the software isalso presented taking IEEE-4 bus system as an example.The software has many advantages: zero-maintenance at the tier of client; telecommuting; much easier to extend, etc.