Auto-mapping of GIS-based urban distribution grid system diagram

LIU Zhong-yuan， WU Sheng-qi
（Department of Information Science & Electronic， Hangzhou Vocational Technology College，
Hangzhou 310018， China）

Abstract： Aiming at the correctness and integrity of the distribution grid system diagram in grid work，the grid structure and the operational characteristics of the power industry were investigated and analyzed，and the analysis model for the liaison between substations was abstracted. With the application of the IC layout design thinking into the distribution grid system diagram，the liaison-based method for grid region dividing and the equidensity constraint space placement algorithm were established. By reading the grid topology structure and power transmission line data maintained by the geographic information system（GIS），all electrical equipment in the GIS can be covered，original topology relationship between substations maintained，and seamless sharing in multiple application subsystems achieved for graphics support. The test run of the system has been evaluated in Hangzhou Electric Power Bureau for half a year. The research results indicate that the functions of auto-mapping for the distribution grid system diagram can be well realized，the workload on system diagram maintenance and the costs on the system operation and maintenance can be greatly reduced.
Key words： geographic information system（GIS）； urban distribution grid system diagram； power supply areas； equidensity constraint space placement algorithm