Username   Password       Forgot your password?  Forgot your username? 

 

A Model for Pantograph-Catenary Electromechanical Interaction

Volume 14, Number 12, December 2018, pp. 3140-3150
DOI: 10.23940/ijpe.18.12.p23.31403150

Yuan Zhong, Jiqin Wu, Feng Han, and Jiawei Zhang

Southwest Jiaotong Unversity, Chengdu, 610031, China

(Submitted on September 12, 2018; Revised on October 13, 2018; Accepted on November 14, 2018)

Abstract:

The pantograph-catenary system is one of the most important ways to supply power for running trains. Electromechanical phenomena affect its economic operation. Because former research was mostly experimental, this paper presents a preliminary model for electromechanical interactions. In this model, electrical contact resistance and contact force are calculated in a defined contact interspace as finite cuboid elastic elements. On the assumption that the heights of all asperities follow the Gaussian distribution, a simulation is carried out and the following conclusions can be drawn: 1) the real contact area of the strip and contact wire can increase with the nominal contact area, but when the nominal contact area exceeds a value, the real contact area will no longer increase; 2) the growing contact force can enlarge the real contact area and reduce electrical contact resistance with its randomness; 3) pantograph sliding can be equivalent to contact elements disconnecting and connecting, which can explain why arc occurs more frequently in two conditions: when the contact force decreases and when the contact force is low.

 

References: 12

                    1. S. Kubo and K. Kato, “Effect of Arc Discharge on the Wear Rate and Wear Mode Transition of a Copper-Impregnated Metallized Carbon Contact Strip Sliding Against a Copper Disk,” Tribology International, Vol. 32, pp. 367-378, 1999
                    2. G. Bucca and A. Collina, “A Procedure for the Wear Prediction of Collector Strip and Contact Wire in Pantograph-Catenary System,” Wear, Vol. 266, pp. 46-59, 2009
                    3. G. Bucca and A. Collina, “Electromechanical Interaction Between Carbon-based Pantograph Strip and Copper Contact Wire: A Heuristic Wear Model,” Tribology International, Vol. 92, pp. 47-56, 2015
                    4. Z. H. Chen, Y .L. Shi, G. Guang, Z. Y. Wang, and L. Q. Kang, “Calculation Model of Contact Resistance Between Pantograph Strip and Contact Wire in Catenary,” Transactions of China Electrotechnical Society, Vol. 28, pp. 188-195, 2013
                    5. Y. Y. Zhang, Y. Z. Zhang, S. M. Du, C. F. Song, Z. H. Yang, and S. G. Bao, “Tribological Properties of Pure Carbon Strip Affected by Dynamic Contact Force During Current-Carrying Sliding,” Tribology International, Vol. 123, pp. 256-265, July 2018
                    6. Y. Zhang and C. Song, “Arc Discharges of a Pure Carbon Strip Affected by Dynamic Contact Force during Current-Carry Sliding,” Materials, Vol. 11, 2018
                    7. P. Li, “Development of High Speed Electric-Tribometer and Researches on Tribo-electric Behaviors of Strip Materials,” China Academy of Machinery Science and Technology Group, 2007
                    8. GB/T 12971.1-2008, “Trolley and Contact Wires for Electric Traction- Part1: Copper and Copper-alloy Contact Wires,” 2008
                    9. R. Holm, “Electrical Contacts,” Springer, New York, 1979
                    10. R. S. Timsit, “Electrical Contact Resistance: Properties of Stationary Interfaces,” IEEE Transactions on Components & Packaging Technologies, Vol. 22, pp. 85-98, 1999
                    11. M. K. Ester, P. Hans, J. Sander, and X. W. Xu, “A Density-based Algorithm for Discovering Clusters in Large Spatial Databases with Noise,” in Proceedings of the Second International Conference on Knowledge Discovery and Data Mining (KDD-96), pp. 226-231, 1996
                    12. J. A. Greenwood and J. B. P. Williamson, “Contact of Nominally Flat Surfaces,” in Proceedings of the Royal Society of London, Vol. 295, pp. 300-319, 1966

                                       

                                      Please note : You will need Adobe Acrobat viewer to view the full articles.Get Free Adobe Reader

                                      Attachments:
                                      Download this file (IJPE-2018-12-23.pdf)IJPE-2018-12-23.pdf[A Model for Pantograph-Catenary Electromechanical Interaction]627 Kb
                                       
                                      This site uses encryption for transmitting your passwords. ratmilwebsolutions.com