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한국형 도시철도 열차제어시스템(KTCS-M) 실용화 방안에 대한 사례 연구
강홍구(Hong Gu Kang),최석중(Seog Jung Choi),박채옥(Chae Ok Park),이기철(Ki Cheol Lee),차승민(Seung Min Cha) 한국철도학회 2024 한국철도학회 학술발표대회논문집 Vol.2024 No.5
국내 도시철도 열차제어시스템은 국가연구 개발사업으로 2014년 12월 도시철도 열차제어시스템 국산화 개발을 완료하였다. 그러나, 국내 도시철도 운영기관은 한국형 도시철도 열차제어시스템에 대해 실용화 및 영업운행 실적이 없어 해외 열차제어시스템을 사용하고 있다. 한국형 도시철도 열차제어시스템(KTCS-M)은 국내기술로 개발한 궤도회로를 사용하지 않고 양방향 연속 무선통신기술을 적용하여 실시간으로 열차를 제어하는 한국형 CBTC 시스템이다. 본 사례연구는 일산선 한국형 도시철도 열차제어시스템 시범사업의 설계부터 지 · 차상 인터페이스, 운영단계까지 실용화 방안 사례 연구를 통하여 개량기술 경험 및 안전성검증으로 국산 열차제어시스템 확대사업 기반마련 및 세계시장 경쟁력을 확보 하기 위해 방안을 조사하였다. The domestic urban railway train control system was completed in December 2014 as a national research and development project. However, domestic urban railway operating agencies are using foreign train control systems because there is no practical use or operational performance of the Korean Train Control System-Metro. Korean Train Control System-Metro(KTCS-M) is a Korean CBTC system that controls trains in real time by applying two-way continuous wireless communication technology without using track circuits developed with domestic technology. This case study is to lay the foundation for the domestic train control system expansion project and increase competitiveness in the global market through improved technology experience and safety verification through a case study of practicalization measures from the design of the Ilsa n Line Korean Train Control System-Metro pilot project to the on-ground and on-vehicle interface and operation stage. We investigated ways to secure it.
고속철도 신호기계실의 접지전류 진단 및 개선방안에 관한 연구
윤용기(Yong-Ki Yoon),김성진(Sung-Jin Kim),고경준(Kyeong-Jun Ko),박채옥(Chae-Ok Park),김용규(Yong-Kyu Kim) 대한전기학회 2021 전기학회논문지 Vol.70 No.10
Through the construction of high-speed railways and the electrification projects, the railway ground was switched to the common grounding method with the individual(or independent) grounding method. The common grounding method can eliminate the potential difference between the equipment connected to the common grounding line, but the line is used for the path which the return current of a train flows. As a result, it has been confirmed that the impulse surge current invades the signal machine room through the ground wires of the track circuit cable that connects the track circuit devices in the field and the transmitter and receiver in the signal machine room. It was also confirmed that the grounding current that entered the signal machine room affects the grounding current of other equipment in the room. The grounding system inside the signal machine room consisted of the common grounding line buried along the track and a steel frame of the building structure, but the steel frame grounding of the building structure was used as a path for another impulse surge current to enter the room. The ground current that entered the signal machine room continued to adversely affect certain equipment in the machine room, causing the equipment to malfunction or eventually burn out. Therefore, in this paper, we analyze the state of the ground current in the signal machine room and present measures to prevent the impulse surge current from entering the room and suppress the generation of ground circulating current in the room.