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

fYear

2014

fDate

18-20 June 2014

Firstpage

796

Lastpage

800

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2014 International Symposium on

Conference_Location

Ischia

Type

conf

DOI

10.1109/SPEEDAM.2014.6872023

Filename

6872023