E3S Web Conf.
Volume 91, 2019Topical Problems of Architecture, Civil Engineering and Environmental Economics (TPACEE 2018)
|Number of page(s)||10|
|Section||Power Transmission and Generation|
|Published online||02 April 2019|
Mathematical modeling of electromagnetic environment at railroad junctions
1 Angarsk State Technical University, ul. Chaykovskogo, 60, 665835, Angarsk, Russia
2 Irkutsk State Transport University, ul. Chernyshevskogo, 15, 664074, Irkutsk, Russia
3 Irkutsk national research technical university, st. Lermontova, 83, 664074, Irkutsk, Russia
* Corresponding author: firstname.lastname@example.org
Results of computer-aided studies of electromagnetic environment at railroad junctions of alternating current electrified railroads having voltage of 25 kV are presented. A large number of lines and overhead catenaries significantly complicate the picture of electromagnetic field distribution. The nature of the field distribution in space is significantly affected by the rolling stock on station tracks. Besides, the task of electromagnetic environment modeling is complicated by the presence of underground pipelines and enclosures, and reinforced concrete passenger platforms. During the transfer of power of 10 + j10 MV·A through the junction of overhead system, the magnetic field strength at a level of 1,8 m is considerably less than the magnetic strength at a railway haul due to current distribution on overhead system of several tracks. Magnetic field strength levels in calculation examples do not exceed amplitude of 30 A/m. The train performance leads to changes in the strengths of the electrical and magnetic fields. The dynamics of changes is presented as a result of simulation modeling of train movement modes.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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