Zemní proudová pole v okolí elektrizovaných drah

Abstract

In my PhD thesis, I focused on examining the adverse effects that arise when running on lines powered direct current system. It is therefore especially the leakage current, because ultimately cause electrochemical corrosion metal storage devices that are located nearby track.

The first part is focused on ways of power electrification systems, which are used in the Czech Republic.

The second part is the theoretical analysis of electrochemical corrosion due to leaking currents from the track electrified lines and ways to prevent this negation.

The third part deals with modeling where the model consists of power supply, electrical drive vehicle, rail and individual layers of earth. The created simulation model allows to locate the individual ground layers to any storage device, which is may occur around electrified lines. Potential distribution caused by leakage current on atypical storage devices such as the mast foot and the platform is then shown using a simulation program.

In the penultimate section describes measurements on selected substations and specific reading values, which are then plotted graph of.

In the conclusion will be compared and measured model values. From the results obtained, we can make conclusions and propose solutions to reduce this negative effect.