Study On The Automatic Generation System Of Power System Main Wiring Graph

The graph of electric main wiring is a kind of graphic express, and in this graphic express, it describes relation of electric energy's generation, transmission , distribution and topology with equipments. The graph of main wiring is used widely for mangement,analyzing and calculateing in power system,and is a very important kind assistant tool. Based on researching style and feature of wiring in power system, Object-oriented techniques, Engineering database techniques and artificial intelligence techniques are used for researching principle and method of a graphic system which can automatically develop single diagrams of power systems in this dissertation. This dissertation includes the following main content:① Analyses and sums up style and feature of power network wiring and plant wiring.Based on analysing demand,it designs overall frame of the automatic generation system of power system main wiring graph .The system consists of four part:knoeledge base,data base,inference and Drawing. ② Starting with analyzing characteristics of power network, it takes content of power network as fact, and describes knowledge of power network fact base by using of Object-oriented techniques. It constructs fact base in knowledge base. The various rules that reflect relation of database and graph are constructed. Object-oriented relationship database of power system is also designed.③ Based on power system topology database, automatically developing network graph of power network is designed ; Based on analyzing regularity of substation main wiring, An intelligent method for automatic generation of substation main wiring is proposed. ④ It improves traditional positive inference. Based on topology structure of power network in power system database, a inference network graph is established with the method form top to bottom. A positive inference is used in inferring and the positive inference algorithms is proposed.⑤ Topology drawing plate is designed and realized, and takes it as compile environment of power system graph. It is proposed that the ideal of designing drawing plate, hierarchy model of graph class and the linking method between graph and database...