Scientific paper ID 1830 : 2019/3
TIME-FREQUENCY METHOD OF DETECTION OF RETURN TRACTION CURRENTS ON TRACK CIRCUIT IN ELECTROTRACTIVE SYSTEM OF SERBIAN RAILWAYS
Branislav Gavrilovic, Zoran Bundalo, Ivana Cirovic
The results of perennial explorations impact of return traction current on track circuit in electro-tractive system of Serbian Railways has accomplished the new method of detection which enable the safely define of impact of traction current on track circuit. A new method of detection of electromagnetic compatibility traction current and track circuit applied of signaling devices of railways electro-tractive systems using the Short Time Fourier Transformation (STFT) is presented. This particular kind of signal analysis makes the determination of changes of the spectral power density of a signal in function of possible time. In this paper the results of joint time-frequency analysis of the potential of track circuit in the field of return traction currents stray generated by tram-line are presented. Presented results unambiguously show the possibility of accurate identification of source of return traction currents and its interference on the underground metal construction.
обратни тягови токове релсова верига метод детектиранеReturn traction currents track circuit method detectionBranislav Gavrilovic Zoran Bundalo Ivana Cirovic
 Valkov R. Todorov Yu Ikonomov M. SECURITY AND SAFETY OF RAILWAY TRANSPORT Report of the International Scientific Conference Gorna Dabrowa, Poland 2016.
 W. Li,” Stray current Corrosion Monitoring and Protection Technology in DC Mass Transit Systems”, China Univ. Mining/Tchnol. Press, (2004) Xuzhou, China.
 J. G. Yu and C. J. Goodman, “Stray curremt design parameters for DC railways”, Proceedings of the 1992 IEEE/ASME Joint Railroad Conference, Atlanta, USA, 1992, pp, 19–28.
 S. H. Case, “So what`s the problem?
[DC traction stray current control]”, IEE Seminar on IET, 1999, 1/1-1/6.
 W. Machczyñski, Electr. Eng., 84 (2002) pp.165.
 F. Fichera, A. Mariscotti and A. Ogunsola, “Evaluating stray current from DC electrified transit systems with lumped parameter and multi-layer soil models”, 16th International Conference on Computer as a tool, Zagreb, Croatia, 2013, pp. 1187-1192.
 R. H. Hill, S. Brillante and P. J. Leonard, “Trans. Built Environ.”, 18 (1996) pp. 423.
 N. Shen, “Urban Rapid Rail Transit”, 23 (2010) pp. 98.
 H. W. M. Smulders and M. F. P. Janssen, “Modeling d. c. Stray Currents Using a Multi-Layer Model”, Proceedings of the 7th World Congress on Railway Research, Montréal, Canada, 2006.
 S. Jabbehdari and A. Mariscotti, “Distribution of stray current based on 3-Dimensional earth model”, 2015 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles, Aachen, Germany, 2015, pp. 1-6.
 NENOV N., TRAFFIC MOVEMENT AND OPTIMAL MANAGEMENT MODES, second edition, S., VTU, ISBN 978-954-12-0148-0, 252 pp., 2012.
 Nenov N., B. Skrobanski, Modeling of system for monitoring and control of rolling stock in motion on the rail network in the republic of Bulgaria, BulTrans-2016, 14 - 16 September 2016, Sozopol, pp. 185-190, BulTrans-2016, TU Sofia, 2016.
 Chengtao Wang, Wei Li, Yuqiao Wang, Shaoyi Xu, Mengbao Fan, “Stray Current Distributing Model in the Subway System: A review and outlook”, Int. J. Electrochem. Sci., 13 (2018) pp. 1700 – 1727, doi: 10.20964/2018.02.16.
 Ivanov A. I., Modeling of Dynamical Problems with MatLab. Avangard Prima, Sofia, 2011, ISBN 978-954-323-837-8, pp. 100 (in Bulgarian).
 K. Zakowski, K. Darowicki, “Metods of evaluation of the corrosion hazard caused by stray surrents to metal structures containing agressive media”, Polish Journal of Environmental Studies 9 (4) (2000) pp. 237.
 K. Zakowski, W. Sokólski, “24-hour characteristic of interaction on pipelines of stray currents leaking from tram tractions”, Corrosion Science 41 (1999) pp. 1099.
 R. Carmona, W-L. Hwang, B. Torresani, “Wavelet Analysis and its Applications”. Vol.9: Practical Time-Frequency Analysis. Ed.: Ch. Chui, Academic Press, USA, 1998.
 R. Ramirez, “The FFT Fundamentals and Concepts”. Tektronix Inc., Englewood Cliffs, New Jersey, USA, 1985.