Simulation and Testing of the Effect of Current Collection Performance According to Pre-sag in 400km/h Overhead Contact Lines

400km/h 전차선로에서 사전이도가 집전성능에 미치는 영향에 대한 시뮬레이션 및 시험

  • Kwon, Sam Young (High-speed Railroad System Research Center, Korea Railroad Research Institute) ;
  • Cho, Yong Hyeon (High-speed Railroad System Research Center, Korea Railroad Research Institute) ;
  • Lee, Kiwon (High-speed Railroad System Research Center, Korea Railroad Research Institute) ;
  • Oh, Hyuck Keun (High-speed Railroad System Research Center, Korea Railroad Research Institute)
  • Received : 2015.09.28
  • Accepted : 2016.04.08
  • Published : 2016.06.30


A 400km/h simple catenary system was constructed as a test line in Korea. In the design stage of this system, the pre-sag was one of the engineering issues most focused on. It is known that the pre-sag improves the current collection performance in a certain band of high speed. However, the effect of pre-sag at 400km/h has not yet been established. To grasp a better pre-sag in the 400km/h catenary, we transacted the dynamic performance prediction simulation between catenary and pantograph under conditions of 0 and 1/3000 pre-sag. The level of 0 pre-sag was adapted for the 400km/h catenary design after reviewing predictions. We constituted the 1/3000 pre-sag sample section (about 1km) while constructing the 400km/h catenary test-bed (28km) of 0 pre-sag. With a HEMU-430X train, the contact forces were measured in the test-bed including the pre-sag sample section. In this paper, the predicted and measured dynamic performance values (contact forces) for 0 and 1/3000 pre-sag are described and compared. It is conclusively confirmed by analytical and experimental examination that the non pre-sag showed better dynamic (current collection) performance than that of the 1/3000 pre-sag for the 400km/h catenary system.


Grant : 경량 저소음 팬터그래프 개발, 증속에 따른 전차선로 시스템 기술개발

Supported by : 한국철도기술연구원, 국토교통과학기술진흥원


  1. SIMENS (2009) Contact lines for electric railways-planning, design, implementation, maintenance, Publicis Publishing, pp. 636-638.
  2. Bauer, K.H., Seifert, R. (1991) Testing of the high-speed overhead contact line Re250 of Deutsche Bundesbahn, Elektrische Bahnen 89, pp. 424-425.
  3. F. Kiessling (1985) Contribution to Siemens railway symposium, Erlangen.
  4. O. Dorenberg (1965) German railway tests to develop an overhead contact line for very high speeds, Elektrische Bahnen 63, 6, pp. 148-155.
  5. Y.H. Cho, K.W. Lee, Y. Park, B.B. Kang, K.N. Kim (2010) Influence of contact wire pre-sag on the dynamics of pantograph- railway catenary, I. J. of Mechanical Sciences, 52, pp. 1471-1490.
  6. Y.H. Cho (2008) Numerical simulation of the dynamic response of railway overhead contact lines to a moving pantograph , considering a nonlinear dropper, Journal of Sound and Vibration, 315, pp. 433-454.
  7. T.X. Wu, M.J. Brennan (1999) Dynamic stiffness of a railway overhead wire system and its effect on pantograph-catenary system dynamics, J Sound Vib 1999, 219(3), pp. 483-502.
  8. W. Zhang, G. Mei, J. Zeng (2002) A study of pantograph/catenary system dynamics with influence on pre-sag and irregularity of contact wire, Vehicle System Dynamics, Suppl. 37, pp. 593-604.
  9. Railways Technical Research Institute (1993) Characteristics of contact wire and pantograph, Yeonusa publishing authority, pp. 7-9.
  10. S.Y. Kwon, S.H. An, J.S. Choo (2009) A review on the geometry changes when increasing the contact wire tension to implement 400km/h test run of the next high speed train HEMU-430X, Proc. of autumn conference of the Korean society for railway, Jeju, pp. 206.
  11. Stefano Bruni, Jorge Ambrosiob, Alberto Cariceroc,Y.H. Cho, et al. (2015) The results of the pantograph-catenary interaction benchmark, Vehicle System Dynamics, 53(3), pp. 412-435.
  12. S.H. An, Y.H. Kim (2012) A study on the geometry change for the increased contact wire tension in the pre-sagged existing catenary, Journal of The Korean Society for Railway, 15(5), pp. 447-453.
  13. Y.H. Cho, K.W. Lee, S.Y. Kwon, et al. (2013) The analysis of fatigue test load for droppers in overhead contact line for 400km/h operation, Proceedings of Autumn Conference of the Korean Society for Railway, Daegu, pp. 41-48.
  14. Kunio Ikeda (2005) Optimization of overhead contact lines for Shinkansen speed increases, JR EAST technical review-No.12 Special edition paper, pp. 64-69.