| Title |
Modeling for the Analysis of Rail Potential in the DC Railway Power System |
| Authors |
Woong-Ki Cho ; Kyu-Hyoung Choi |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2010.24.6.138 |
| Keywords |
DC Electrical Railway ; Rail Potential ; Stray Current |
| Abstract |
DC railway power supply system generally uses the running rails as negative-polarity return conductor for traction load current, and the induced rail potential and stay current cause serious problems to any electrified matter in the underground and also safety problems to human body. This paper presents a new algorithm for the analysis of the rail potential and the stray current in DC railway power system operated under independent/parallel power feeding mode. The effect of load current fluctuation during train operation is also calculated by using TPS(Train Performance Simulation) program to analysis the variation of the railway potential and stray current along railway track. Simulation program is developed based on the proposed algorithm and case studies are provided. |