The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Research on Configuration Optimization of Overlap Section in Overhead Catenary System for High-speed Railway

전차선로 속도향상에 따른 오버랩 구간(Overlap section) 경간 구성 기법

  • Choi, Tae-su (Dept. of Railway Electrical and Signaling Engineering, Seoul National University of Science & Technology) ;
  • Choi, Kyu-Hyoung (Dept. of Railway Electrical and Signaling Engineering, Seoul National University of Science & Technology)
  • Received : 2017.03.20
  • Accepted : 2017.04.17
  • Published : 2017.06.01
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Abstract

Overhead catenary system of electric railway has overlap sections which devide and tighten trolley wire supplying electric power to train, where current collection performances may become worse according to railway speed-up. Current collection tests conducted at 400 km/h test-bed section of Honam high-speed railway show that balanced line arrangement at overlap section is needed to secure current collection without arc generation between trolley wire and train current collection device. This paper proposes a design procedure of the overlap section to allow for tension increase and uplift of the trolley wires according to railway speed-up. By applying the proposed procedure to the overhead catenary system of Honam high-speed railway, it is suggested that the minimum span length should be 33.2 m for railway speed-up to 350 km/h and 43.7 m for speed-up to 400 km/h.

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References

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