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A Study on Analysis Electrical Characteristics of Cable Lenght change about area Boundary of UM71C Audio Frequency Track Circuit

고속철도 AF궤도회로경계구간 케이블길이 변화에 따른 전기특성 분석연구

  • Choi, Jae Sik (Department of Technology Research, KORAIL Research Institute) ;
  • Kim, Hie Sik (Dept. of ECE, University of Seoul) ;
  • Park, Ju Hun (Department of Technology Research, KORAIL Research Institute) ;
  • Kim, Bum Gon (Department of Technology Research, KORAIL Research Institute)
  • Received : 2015.06.22
  • Accepted : 2015.07.16
  • Published : 2015.07.31

Abstract

It has been often occurred for the outside components(BU, SVaC, DB) of UM71c AF track circuits to be broken down caused by some pieces of falling ice in the winter time or by infrastructure repairing equipments while facility maintenance works since 2004, opening of Kyeongbu High Speed Rail Express. In this paper, we proposed that we could move the outside components of UM71c track circuit out of wayside from present place. Then we can assure that the life time of those components would be extended. So we simulated the electrical characteristics by changing cable length using MATLAB Simulinks and we designed the compensation capacitor. Also, we obtained the same results as those of simulation by field demonstration test on site. The design specifications obtained from this field verification test could be applied in the absent section of track circuit, if only have a little more intensified research to compensate changed electrical characteristics and to redesign inner impedance of the track circuit.

본 논문은 2004년 경부고속선 개통이후 UM71C AF궤도회로 현장 구성품(BU, SVaC, DB)들이 선로내측 자갈도상에 설치되어 있기 때문에 겨울철 고속차량 낙빙 및 시설분야 장비작업으로 인한 파손사례가 자주 발생되어 시설물 보호를 위한 개선대책일환으로 선로내측에 설치된 구성품을 선로외측으로 이설할 경우 케이블 길이 변화에 따른 임피던스 특성변화와 보상콘덴서 추가구성을 위하여 MATLAB Simulink를 이용하여 시뮬레이션을 시행하였고 또한 고속선 현장실증시험을 통하여 시뮬레이션과 동일한 결과를 얻었다. 향후 궤도회로사구간에 대한 보완과 구성품내부 임피던스 재설계 연구를 통하여 실제 현장에 적용될 수 있을 것으로 기대된다.

Keywords

References

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Cited by

  1. An Analysis of Voltage Characteristics for LC Resonant Frequency Band of Capacitor Compensation According to Moving of Electrical Separation Equipment of AF Track Circuit vol.65, pp.8, 2016, https://doi.org/10.5370/KIEE.2016.65.8.1466