Potential of the electric flow field produced in the earth by stray currents from D.C. traction of complex geometry

• Autorzy: Budnik K. , Machczyński W. , Szymenderski J.
• Konferencja: Computer Applications in Electrical Engineering (18-19.04.2016 ; Poznań, Polska)
• Języki publikacji: EN

Abstrakty

EN

The paper presents a method 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 method the equivalent rail is considered as an earth return circuit. The models of the equivalent rail with current energization and the concept of superposition allow one to consider more complicated d.c. railway systems using a segmental approximation of the complex railway route and taking into account a number of substations and loads at any location. It is assumed in the paper that the system considered is linear, that the earth is 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: Poznan University of Technology Academic Journals. Electrical Engineering
• Rocznik: 2016
• Tom: No. 85
• Strony: 29--40
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Budnik K.

• Poznan University of Technology

autor

Machczyński W.

• Poznan University of Technology

autor

Szymenderski J.

• Poznan University of Technology

Bibliografia

• [1] Sunde E.D., Earth conduction effects in transmission system, New York, Dover 1968.
• [2] 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.
• [3] Machczyński W., Simulation model for drainage protection of earth–return circuits laid in stray currents area, Electrical Engineering (pp. 165-172), Vol. 84, No 3, July 2002.
• [4] Brichau F., Deconinck J., A Numerical Model for Cathodic Protection of Buried Pipes. Corrosion, January 1994, Vol. 50, No. 1, pp. 39-49.
• [5] Metwally I.A., Al-Mandhari H.M., Nadir Z., Gastli A., Boundary element simulation of DC stray currents in oil industry due to cathodic protection interference, European Trans. on Electrical Power, Vol. 17, Sept./Oct. 2007, pp. 486-499.
• [6] Bortels L., Dorochenko A., Van den Bossche B., Weyns G., Deconinck J., Three-Dimensional Boundary Element Method and Finite Element Method Simulations Applied to Stray Current Interference Problems, A Unique Coupling Mechanism That Takes the Best of Both Methods. Corrosion: June 2007, Vol. 63, No. 6, pp. 561-576.
• [7] Czarnywojtek P., Machczyński W., Computer simulation of responses of earthreturn 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, September 19 – 24, 2005, Beijing, China, 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. 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] Ogunsola A., Mariscotti A., Electromagnetic Compatibility in Railways, Analysis and management, Springer – Verlag, Berlin Heidelberg 2013.
• [12] Lucca G., Estimating stray currents interference from DC traction lines on buried pipelines by means a Monte Carlo algorithm, Electrical Engineering, DOI 10.1007/s00202-015-0333-6, published online: 05 April 2015.
• [13] 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.
• [14] 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.
• [15] 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.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.