The thesis presents an analysis method of high-voltage overhead lines electromagnetic fields in three dimensions for closer approach to the actual range of exceedances.
The method combines modeling of high-voltage overhead lines in three dimensions with variety of detailed spatial data. It shows the use of topographic data for constructing a model of high-voltage overhead lines, ground profile or buildings. Georeferenced vector data layers are used to determine the sensitivity of the area to electromagnetic fields effects of high-voltage overhead lines. By combining the three-dimensional model calculations and all the detailed spatial data the results of calculations in three dimensions are visualized on individual micro locations.
Calculation method of electromagnetic field are presented with their limitations and approach in dealing with these limitations. Method for appropriate results valuation, regarding quality of georeferenced spatial data from different sources is presented.
Calculation of parallel and crossing overhead lines electromagnetic fields is presented. The presented method is used, both in the process of high-voltage overhead lines siting, as the complement of initial measurements or operational monitoring.