EPE  Vol.5 No.4 B , July 2013
Analysis on the Effect of the Nonlinear Resistance on the Locomotive Operating Overvoltages
Abstract: With the application of the articulated phase insulator, and the speed of electric locomotive rising, it is inevitable for the electric locomotive to adopt the technology automatic passing through the electric phase separation. However, when the locomotive passes the electric phase separation, a variety of overvoltages will be generated, such as the cut-off overvoltage and the closing overvoltage. In this paper, the causes of the two overvoltages above are analyzed theoretically and simulated in Simulink. Then this paper discusses the suppression effects on the cut-off overvoltage and the closing overvoltage by paralleling the nonlinear resistance and the main breaker, or parallelling the nonlinear resistance and the locomotive transformer. The simulation results show that parallelling the nonlinear resistance and the locomotive transformer has suppressive effects on the two overvoltages mentioned above.
Cite this paper: Z. Han, D. Zhang, Y. Wu and S. Gao, "Analysis on the Effect of the Nonlinear Resistance on the Locomotive Operating Overvoltages," Energy and Power Engineering, Vol. 5 No. 4, 2013, pp. 1243-1248. doi: 10.4236/epe.2013.54B236.

[1]   C. Z. Chen, “The Analysis on the Course of Electric Motive Passing though Phase Separation,” 2007, pp. 7-22.

[2]   Y. S. Yan, “The Discussion on Electric Locomotive Auto-passing the Phase Separation,” Electric Drive for Locomotive, Vol. 6, 1999, pp. 1-3.

[3]   W. Ran, X. Li, B. Liu and Q. L. Zheng, “Research on Transient Process of Ground’s Auto-passing Neutral Section at Switching Time,” Transactions of China Electro Technical Society, Vol. 26, No. 11, 2011, pp. 150-154.

[4]   X. J. Wei, H. T. Wang and Y. S. Wu, “Study on the Ground Automatic Passing the Articulated Phase Insulator with Parallel Resistance,” Electric Railway, Vol. 2, 2011, pp. 5-8.

[5]   Y. N. Gu, Y. Wang and H. Wang, “The Analysis on Overvoltage of Electric Locomotive Automatic Passing Phase Separation,” Electric Railway, Vol. 3, 2009, pp. 1-3.

[6]   P. F. Yin and W. C. Du, “Generation and Control of Cut-off over Voltage of a Vacuum Circuit Breaker,” Electrical Switching, Vol. 2, 2005, pp. 34-37.

[7]   Y. S. Gong, “Research of Over-voltages of Electric Locomotive Passing the Articulated Phase Insulator,” Journal of the China Railway Society, Vol. 30, No. 4, 2008, pp. 103-107.

[8]   W. G. Pan, “The Analyze on the Transient Process of Switch-Ground’s Automatic Passing Phase-Separation Device for Traction Network of Electrified Railway,” 2008.

[9]   Y. L. Wang, D. Y. Zhao and S. H. Hu, “Development Trends of Line Arresters,” Electrical Porcelain Lightning Arrester, Vol. 1, 2011, pp. 26-34.

[10]   Y. J. Liang, “Application of Metal Oxide Varistors in Power System,” Beijing, Vol. 5, 1997, pp. 74-90.

[11]   J. Wang and G. Q. Weng, “MATLAB/SIMULINK Simulation and Application of Electric Power System,” Xi’an, 2008, pp. 271-275.