Analysis of Microterrain Data Based on GIS and Applied to Power Grid Layout

Abstract

With the rapid development of economy and electronic information industry, the demand for electricity is getting higher. As a basic project, the reasonable point layout of power grid is becoming more and more important. Topographic elements are the key factors affecting power grid layout. However, the actual terrain is complex and changeable, so it is urgent to quantify all kinds of topographic factors to provide reference for power grid layout. Based on three-dimensional GIS technology, this paper provides a terrain factor algorithm with controllable variables for power grid layout project, obtains terrain factors such as slope, aspect, slope position, underlying surface type and surface roughness with different accuracy according to the actual terrain, and outputs the data format in accordance with the specification to provide decision support for power grid layout. At the same time, this study can also provide a reference for other decision-making works that rely on topographic elements.