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Effect of primary high voltage supply lines on the high speed AC railways systems

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3 Author(s)
Dolara, A. ; Dept. of Energy, Politec. di Milano, Milan, Italy ; Gualdoni, M. ; Leva, S.

The High Speed/High Capacity railway lines uses the 2×25kV-50Hz power supply system that is supplied at high-voltage by dedicated lines that can be placed in close proximity to the railway line. The power system adopted for HS railway lines includes a lot of harmonic sources. Resonance phenomena can cause harmonics amplification with consequent problems as voltages distortion, interference problems and electromagnetic interference with communication lines. This paper presents a detailed model for the railway system (including the primary line) with the aim to evaluate the resonance frequency of the impedance seen by the pantograph.

Published in:

Harmonics and Quality of Power (ICHQP), 2010 14th International Conference on

Date of Conference:

26-29 Sept. 2010