Study on Distribution Coefficient of Traction Return Current in High-Speed Railway

Wen Huang, Zhengyou He, Zhengyou He, Haitao Hu, Qi Wang

School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China.

DOI: 10.4236/epe.2013.54B238                

Abstract

The distribution coefficient of return current network is an important method to decrease the rail potential. In order to resolve the problem of high rail potential in high-speed railway based on EN50122-1 and Pr EN50170 the distribution coefficient of longitudinal traction return current conductors is calculated through changing the interval of transverse connection. Based on field data and theoretical analysis, the parameters of longitudinal traction return current conductors are calculated. Results indicate that the best distance of the transverse connection is 400 m – 600 m.

Keywords

Traction Return Current; Rail Potential; Distribution Coefficient; Interval of Transverse Connection

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	R. Natarajan, A. F. Imece, J. Popoff, K. Agarwalet and P. S. Meliopoulos, “Analysis of Grounding Systems for Electric Traction,” IEEE Transactions Power Delivery, Vol. 16, No. 3, 2001, pp. 389-393. doi:10.1109/61.924816
[2]	A. Mariscotti and P. Pozzobon, “Synthesis of Line Impedance Expressions for Railway Traction Systems,” IEEE Transactions on Vehicular Technology, Vol. 52, No. 2, 2003, pp. 420-430．doi:10.1109/TVT.2003.808750
[3]	C. F. Yang, J. T. Huang and T. H. Lee, “Effects of Magnetic Field Induction and Ground Potential Rise on Pilot Wire Relay System Operations,” IEEE Proceedings of Generation, Transmission and Distribution, Vol. 143, No. 3, 1996, pp. 290-294．
[4]	R. Cella, G. Giangaspero, A. Mariscotti, et al., “Measurement of AT Electric Railway System Currents and Validation of a Multiconductor Transmission Line Model,” IEEE Transactions on Power Delivery, Vol. 21, No. 3, 2006, pp. 1721-1726． doi:10.1109/TPWRD.2006.874109
[5]	S. T. Sobral, G. Azzam and S. C. Sobral, “Ground Potentials and Currents in Ubstations Fed Exclusively by Power Cables: An Example Leblon Substation,” IEEE/PES Transmission and Distribution Conference and Exposition, Latin America, Sao Paulo, Brazil, IEEE PES, 2004, pp. 91-95.
[6]	S. F. Xie, “Study on Methods to Reducing Rail Potential of High-speed Railway,” Proceedings of 32nd Annual Conference of IEEE Industrial Electronics Society, France, IECON, 2006, pp. 1042-1046.
[7]	X. G. Jiang, “Research on Earthing of High Speed Railway,” Southwest Jiaotong University Master Degree Thesis, 2009.
[8]	G. Yang, M. G. Liu and N. Li, “Research on Model of Rail Potential Distribution and Its Simulation,” Journal of Beijing Jiaotong University, Vol. 34, No. 2, 2010, pp. 137-141.
[9]	G. N. Wu, G. Q. Gao and A. P. Dong, “Study on the Performance of Integrated Grounding Line in High-Speed Railway,” IEEE Transactions Power Delivery, Vol. 26, No. 3, 2011, pp. 1803-1810. doi:10.1109/TPWRD.2011.2117446
[10]	Y. Chen and Y. C. Deng, “Analysis of Rail Potential and Current Distribution of Integrated Earthing System for Ballastless Track of Sui-Yu Railway Line,” Journal of Railway Engineering Society, 2007, pp. 426-429.
[11]	Q. Z. Li, “Analysis of Tractive Power Supply System,” Southwest Jiaotong University Press, Chengdu, 2007, pp. 243-264．
[12]	W. L. Ming and F.Yu, “Numerical Calculations of Internal Impedance of Solid and Tubular Cylindrical Conductors under Large Parameters,” IEEE Proceedings Generation Transmission Distribution, Vol. 151, No. 1, 2004, pp. 67-72.
[13]	A. Semlyen and A. Deri, “Time Domain Modeling of Frequency Dependent Three Phase Transmission Line Impedance,” IEEE Transactions, Vol. PAS-104, No. 6, 1985, pp .1549-1555.
[14]	G. N. Wu, X. B. Cao and R. F. Li, “Lightning Protection and Grounding of Rail Transit Power Supply System,” Science Press, Beijing, 2011, pp. 230-244.
[15]	G. Q. Gao, A. P. Dong and X. Y. Zhang, “Grounding Effect of Integrated Grounding Wire for High-Speed Railway,” Journal of Southwest Jiaotong University, Vol. 46, No. 1, 2011, pp.103-108.
[16]	The Ministry of Railways Engineering Design Appraisal Center, “Engineering Design Manual of Railway Comprehensive Grounding and Signal Equipment Lightning Protection System,” China Railway Press, Beijing, 2009, pp. 7-10.