고속철도 열차제어시스템 속도향상 기술 연구

초록

The train control system in Gyeongbu High Speed Rail is a fixed block system, which receives operational information, such as train entry and exit speed in corresponding blocks, possible operating distances, deceleration etc, from track circuits on the basis of block occupancy of a preceding train, when KTX enters a block section divided by way of considering physical characteristics of rolling stocks, track environment etc. Additionally, the wayside train control system generates train control curves using operational information received from wayside, and it guarantees a safe operation of trains by giving an emergency braking order, in case of that a train exceeds a standard speed of a corresponding block. Block-sectioning is a basic design operated in fixed block systems for the safe operation of trains. The result of the block-sectioning design is a criterion for estimating the quantity of wayside train control systems as well as track circuits. Therefore, in this paper we analyze the input requirement and the process for block-sectioning on the basis of block-sectioning design of Gyeongbu HSR operated at a maximum speed of 300km/h. As a result, we realize that it is required to input information on rolling sotcks, signals, track information, speed sequences for the purpose of the division of block section, and the block-sectioning is performed along with the procedure like block-sectioning, safety verification and headway validation. Such a design method for block-sectioning can be used in block modification when improving the conventional high speed rail, and in the block-sectioning for new high speed lines. In this way, it is expected for an operating agency to be able to calculate reasonable designing costs.