Title :
Some aspects of impact analysis of a planned new 25kV AC railway lines system on the existing 3 kV DC railway system in a traction supply transition zone
Author :
Szelag, Adam ; Patoka, Marek
Author_Institution :
Electr. Traction Div. Warsaw, Warsaw Univ. of Technol., Warsaw, Poland
Abstract :
The main aim of the article is to present possibility of negative influence of an AC 25kV traction system on the existing DC 3kV railway system and power network, due to the unbalanced AC traction load. In the article, apart from the main problems which could appear in the transition zone of AC and DC railway systems, the analysis of each system in separation is performed. Article also contains some aspects of voltage unbalance calculations and estimations. A Matlab - Simulink model of the DC and AC traction systems is done.
Keywords :
power transmission lines; railway electrification; traction power supplies; AC railway line system; AC traction system; DC railway system; DC traction system; impact analysis; power network; traction supply transition zone; unbalanced AC traction load; voltage 25 kV; voltage 3 kV; voltage estimation; voltage unbalance calculation; Harmonic analysis; Power grids; Power system harmonics; Rail transportation; Standards; Substations; electric traction; emc; harmonics; parallel AC DC operation; railway; voltage unbalance;
Conference_Titel :
Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2014 International Symposium on
Conference_Location :
Ischia
DOI :
10.1109/SPEEDAM.2014.6872023
