Generating a PSS™NETOMAC model of the German Transmission Grid from Google Earth and visualizing load flow results

In order to create a model of the German Transmission Grid, it is necessary to get information of the length of the transmission lines. In Germany this data is not provided by the transmission system operators. So a different way of generating these informations has to be found. With the freeware tool Google Earth it is possible to identify the tracks of the transmission lines. In combination with the information of an official map of the German Transmission Grid it is possible to mark all transmission lines of the 380/220 kV voltage level in Google Earth. Furthermore, the positions of transformers and generators can be found. After taking this information to MATLAB, lists of transmission lines, transformers, generators and loads are generated. These lists can be completed with the missing electrical parameters in Microsoft Excel (MS Excel). Finally the lists are imported in MATLAB again and a PSS™NETOMAC-file is generated. Using this file with PSS™NETOMAC, load flow calculations can be performed. To get an overview of the load flow results, a way to visualize node voltages and power flows is presented.