POTENTIALS RAILWISE PROPAGATION STUDY

K. I. Yashchuk

Abstract


Purpose. To conduct the study of the potentials and currents propagation along the rails to evaluate the potential difference and the current asymmetry in the rails that may have an impact on the work of railway automatics and supervisory systems. Methodology. To compass the purpose, the author applies methods of analysis and synthesis of track circuit electrical engineering calculations, mathematical modeling and methods of homogeneous and heterogeneous ladder circuits. Findings. TheconductedtheoreticalstudiesindicatethatinthemountainoussectionsofDCtractionrailwaysthereareveryhigh-levelcurrents,wherebyevenatnominalasymmetryratio theasymmetrycurrentwill beunacceptablyhigh.The re-equipment of running line with the automatic blocking system with tonal rail circuits resulted in reduction of the number of impedance bonds, the equalizing functions of which required further advanced research, that allowed obtaining the potential railwise propagation curves when installing the impedance bonds every 6 and 5 km. The resulting potential difference was too high for railway automation systems, so the potential propagation study was conducted with impedance bonds placed every 3 and 3.5 km, which greatly improved the operation conditions of track circuits. Originality.The proposed method for calculating the propagation of potentials and currents in the rail network of DC traction line is characterized by the representation of the common ladder circuit of each rail as a series of T-shaped four-poles connected in cascade, taking into account the grounding of the contact-line supports on the nearer rail. It has allowed estimating the levels of asymmetry currents that branch into the equipment of track circuits and have a negative impact on their operation. Practicalvalue. The obtained results can be used in designing and re-equipping the running lines with new railway automatics and supervisory systems, as well as for evaluating the influence of high asymmetry currents on the railway automation systems operation.


Keywords


traction currents; track circuits; impedance bond; asymmetry current; potentials propagation

Full Text:

PDF

References


Arkatov, V. S., Kravtsov, Y. A., & Stepenskiy, B. M. (1990). Relsovyye tsepi. Analiz raboty i tekhnicheskoye obsluzhivaniye. Moscow: Transport.

Atabekov, G. I. (1978). Teoreticheskiye osnovy elektrotekhniki. Moscow: Energiya.

Havrilyuk, V. I., Shcheka, V. I., & Meleshko, V. V. (2015). Testing new types of rolling stock for electromagnetic compatibility with signaling and communication devices. Science and Transport Progress, 5 (59), 7-15. doi:10.15802/stp2015/55352

Dydyshko, P. I. (2014). Zemlyanoye polotno zheleznodorozhnogo puti [Manual]. Moscow: Intekst.

Dyakonov, V. P. (2014). Maple 10/11/12/13/14 v matematicheskikh raschetakh. Moscow: DMK Press.

Kaganov, Z. G. (1990). Elektricheskiye tsepi s raspredelennymi parametrami i tsepnyye skhemy. Moscow: Energoatomizdat.

Markvardt, K. G. (1982). Elektrosnabzheniye elektrifitsirovannykh zheleznykh dorog [Guide]. Moscow: Transport.

Razgonov, A. P., & Yaschuk, K. I. (2011). Analysis of track circuits work and automatic signaling on pass section with steep gradient. Bulletin of Dnipropetrovsk National University of Railway Transport, 37, 186-190.

Razgonov, A. P., & Yaschuk, K. I. (2016). Otsinka vplyvu asymetrii tiahovoho strumu na robotu perehinnykh reikovykh kil. Proceedings of the VII International Scientific and Practical Conference «Safety and Electromagnetic Compatibility on Railway Transport« (S&EMC), Rozluch, February16-19, 2016. 60-61. Dnipro: Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan.

Razgonov, A. P. (1980). Profilakticheskoye obsluzhivaniye relsovykh tsepey. Moscow: Transport.

Sсheka, V. I., Romancev, I. O., & Jasсhuk, E. I. (2012). The investigation of reverse traction current influence on tone track circuit modes. Bulletin of Dnipropetrovsk National University of Railway Transport, 42, 24-28.

Shcheka, V. I. (2015). Impact mechanisms research in the contact network on rail track circuits. Science and Transport Progress, 3 (57), 27-35. doi:10.15802/stp2015/46036

Budnik, K., Machczyński, W., & Szymenderski, J. (2016). Potential of the electric flow field produced in the earth by stray currents from D.C. traction of complex geometry. Poznan University of Technology Academic Journals Electrical Engineering, 85, 29-40.

Gander, W., Gander, M. J., & Kwok, F. (2014). Scientific Computing: An Introduction using Maple and MATLAB. Berlin: Springer-Verlag.

Lucca, G. (2015). Estimating stray currents interference from DC traction lines on buried pipelines by means a Monte Carlo algorithm. Electrical Engineering, 97 (4), 277-286. doi:10.1007/s00202-015-0333-6

Mariscotti, A. (2003). Distribution of the traction return current in AC and DC electric railway systems. IEEE Transactions on Power Delivery, 18 (4), 1422-1432. doi:10.1109/tpwrd.2003.817786

Zynovchenko, A., George, G., Körner, S., & Stephan, A. (2014). Modelling of earthing and return current systems of electric railways. Elektrische Bahnen, Special 1, 132-136.

Verbert, K., De Schutter, B., & Babuška, R. (2016). Fault diagnosis using spatial and temporal information with application to railway track circuits. Engineering Applications of Artificial Intelligence, 56, 200-211. doi:10.1016/j.engappai.2016.08.016


GOST Style Citations


  1. Аркатов, В. С. Рельсовые цепи. Анализ работы и техническое обслуживание / В. С. Аркатов, Ю. А. Кравцов, Б. М. Степенский. – Москва : Транспорт, 1990. – 295 с.
  2. Атабеков, Г. И. Теоретические основы электротехники / Г. И. Атабеков. – Москва : Энергия, 1978. – 591 с.
  3. Гаврилюк, В. И. Испытания новых типов подвижного состава на электромагнитную совместимость с устройствами сигнализации и связи / В. И. Гаврилюк, В. И. Щека, В. В. Мелешко // Наука та прогрес транспорту. – 2015. – № 5 (59). – С. 7–15. doi: 10.15802/stp2015/55352.
  4. Дыдышко, П. И. Земляное полотно железнодорожного пути : справочник / П. И. Дыдышко. – Москва : Интекст, 2014. – 416 с.
  5. Дьяконов, В. П. Maple 10/11/12/13/14 в математических расчетах / В. П. Дьяконов. – Москва : ДМК Пресс, 2014. – 800 с.
  6. Каганов, З. Г. Электрические цепи с распределенными параметрами и цепные схемы / З. Г. Каганов. – Москва : Энергоатомиздат, 1990. – 247 с.
  7. Марквардт, К. Г. Электроснабжение электрифицированных железных дорог : учеб. для вузов ж.-д. трансп. / К. Г. Марквардт. – 4-е изд., перераб. и доп. – Москва : Транспорт, 1982. – 528 с.
  8. Разгонов, А. П. Дослідження роботи рейкових кіл та системи автоблокування на перевальних ділянках з крутим профілем / А. П. Разгонов, К. І. Ящук // Вісн. Дніпропетр. нац. ун-ту залізн. трансп. ім. акад. В. Лазаряна. – Дніпропетровськ, 2011. – Вип. 37. – С. 186–190.
  9. Разгонов, А. П. Оцінка впливу асиметрії тягового струму на роботу перегінних рейкових кіл / А. П. Разгонов, К. І. Ящук // Безпека та електромагнітна сумісність на залізн. трансп. (S&EMC) : тези VII Міжнар. наук.-практ. конф. / Дніпропетр. нац. ун-т залізн. трансп. ім. акад. В. Лазаряна. – Дніпро, 2016. – С. 60.
  10. Разгонов, А. П. Профилактическое обслуживание рельсовых цепей / А. П. Разгонов. – Москва : Транспорт, 1980. – 324 с.
  11. Щека, В. І. Дослідження впливу зворотного тягового струму на режими роботи тональних рейкових кіл / В. І. Щека, І. О. Романцев, К. І. Ящук // Вісн. Дніпропетр. нац. ун-ту залізн. трансп. ім. акад. В. Лазаряна. – Дніпропетровськ, 2012. – Вип. 42. – С. 24–28.
  12. Щека, В. І. Дослідження механізмів впливу контактної мережі на рейкові кола / В. І. Щека // Наука та прогрес транспорту. – 2015. – № 3 (57). – С. 27–35. doi: 10.15802/stp2015/46036.
  13. Budnik, K. Potential of the electric flow field produced in the earth by stray currents from D.C. traction of complex geometry / K. Budnik, W. Machczyński, J. Szymenderski // Poznan University of Technology Academic Journals. Electrical Engineering. – 2016. – No. 85. – P. 29–40.
  14. Gander, W. Scientific Computing: An Introduction using Maple and MATLAB /W. Gander, M. J. Gander, F. Kwok. –Berlin: Springer-Verlag, 2014. – 905 p.
  15. Lucca, G. Estimating stray currents interference from DC traction lines on buried pipelines by means a Monte Carlo algorithm / G. Lucca // Electrical Engineering. – 2015. – Vol. 97. – Iss. 4. – P. 277–286. doi:10.1007/s00202-015-0333-6.
  16. Mariscotti, A. Distribution of the traction return current in AC and DC electric railway systems / A. Mariscotti // IEEE Transactions on Power Delivery. – 2003. – Vol. 18. – Iss. 4. – P. 1422–1432. doi: 10.1109/tpwrd.2003.817786.
  17. Modelling of earthing and return current systems of electric railways / A. Zynovchenko, G. George, S. Körner, A. Stephan // Elektrische Bahnen. – 2014. – No. Spec. 1. – P. 132–136.
  18. Verbert, K. Fault diagnosis using spatial and temporal information with application to railway track circuits / K. Verbert, B. De Schutter, R. Babuška // Engineering Applications of Artificial Intelligence. – 2016. – Vol. 56. – P. 200–211. doi: 10.1016/j.engappai.2016.08.016.


DOI: https://doi.org/10.15802/stp2017/109519

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

 

ISSN 2307–3489 (Print)
ІSSN 2307–6666 (Online)