Contribution to studies on calculation of D.C. stray currents

• Autorzy: Budnik K. , Machczyński W. , Szymenderski J.
• Języki publikacji: EN

Abstrakty

EN

The paper presents two methods of the 3D simulation of the primary scalar potential of the electric flow field produced in the earth by d.c. traction stray currents. In the first method the equivalent rail is considered as an earth return circuit with distributed parameters, whereas in the second method the rail is treated as a circuit with lumped parameters. It is assumed in the paper that the system considered is linear, that the earth is a homogeneous medium of finite conductivity and that the effects of currents in nearby underground metal installations on the potential generated in the earth by track currents (primary earth potential) can be disregarded. An extensive parametric analysis to examine the roles of various factors, which affect the primary earth potential caused by stray currents, may be performed using simulation program developed. The technical application of the method presented, which can be useful at design stage e.g. of metal structures buried in the stray currents area, is illustrated by examples of computer simulation.

Słowa kluczowe

EN

stray currents; d.c. traction; earth return circuit; earth scalar potential; simulation

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Computer Applications in Electrical Engineering
• Rocznik: 2015
• Tom: Vol. 13
• Strony: 28--41
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Budnik K.

• Poznań University of Technology 60-965 Poznań, ul. Piotrowo 3a

autor

Machczyński W.

• Poznań University of Technology 60-965 Poznań, ul. Piotrowo 3a

autor

Szymenderski J.

• Poznań University of Technology 60-965 Poznań, ul. Piotrowo 3a

Bibliografia

• [1] Machczyński W., Oddziaływania elektromagnetyczne na obwody ziemnopowrotne - rurociągi podziemne. Wydawnictwo Politechniki Poznańskiej, Poznań 1998.
• [2] Machczyński W., Obwody ziemnopowrotne w polu elektrycznym prądów błądzących. Przegląd Elektrotechniczny, nr 8, 2002, pp. 535–540.
• [3] Sunde E. D., Earth conduction effects in transmission system. New York, Dover 1968.
• [4] Krakowski M., Obwody ziemnopowrotne. Warszawa, WNT 1979.
• [5] Machczyński W., Currents and potentials in earth return circuits exposed to alternating current electric railways. Proc. IEE, Part B, Vol. 129, 5, 1982, pp. 279–288.
• [6] Machczyński W., Simulation model for drainage protection of earth–return circuits laid in stray currents area. Electrical Engineering, vol. 84, No 3, July 2002, pp. 165–172.
• [7] Czarnywojtek P., Machczyński W., Computer simulation of responses of earth-return circuits to the a.c. and d.c. external excitation. European Trans. on Electrical Power, ETEP Vol. 13, No. 3, May/June 2003, pp. 173–184.
• [8] Machczyński W., Czarnywojtek P., Computer simulation of a protection of underground conductors against stray currents. 16th International Corrosion Congress, Beijing, China, September 19–24, 2005, paper 21–03, pp. 1–8.
• [9] Charalambous C. A., Cotton I., Aylott P., A simulation tool to predict the impact of soil topologies on coupling between a light rail system and buried third-party infrastructure. IEEE Trans. on Veh. Technol., Vol. 57, No. 3, 2008, pp. 1404–1416.
• [10] Ogunsola A., Mariscotti A., Sandrolini L., Estimation of stray current from a dc-electrified railway and impressed potential on a buried pipe. IEEE Trans. on Power Delivery, Vol. 27, No. 4, 2012, pp. 2238–2246.
• [11] Mariscotti A., Pozzobon P.: Determination of the electrical parameters of railway traction lines: Calculation, measurements and reference data. IEEE Trans. on Power Delivery, Vol. 19, No. 4, 2004, pp. 1538–1546.
• [12] Hill R.J., Brillante S., Leonard P. J., Railway track transmission line parameters from finite element field modeling: Shunt admittance. Proc. IEE Elect. Power Applicat., Vol. 146, No. 6, 1999, pp. 647–660.
• [13] Hill R. J., Brillante S., Leonard P. J., Railway track transmission line parameters from finite element field modeling: Series impedance. Proc. IEE Elect. Power Applicat., Vol. 147, No. 3, 2000, pp. 227–238.