• Proceedings of the KSR Conference
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• 2006.11b
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• pp.1004-1016
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• 2006

The Maglev Train System in Korea has been developed as a type of Light Rail Transit systems meanwhile. LRT systems which is a type of Urban Railway System, has been standardizing and some of them are prescribed but the Maglev System is not in the law. Along with planning the Urban Maglev Train Commercialization Project in recent time additionally, we reviewed the contents of the laws for the commercialization of the system, and emerged the way to revise the relative laws.

• Proceedings of the KSR Conference
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• 2006.11b
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• pp.288-293
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• 2006

In this work, the characteristics and the improving method of train performance of Korean rubber-tired AGT system(K-AGT) and Urban MAGLEV system are evaluated by using Train Performance Simulation(TPS). The train performance characteristics of K-AGT were analysed according to the change of maximum running speed and those of Urban MAGLEV were evaluated according to a vehicle weight variation. In the result of simulation in virtual line, the scheduled speed and the running time of K-AGT system have no difference with Urban MAGLEV system if the maximum running speed is equal. But the energy consumption of Urban MAGLEV system is more than that of K-AGT system. The analyses showed that in case of a 20 percent vehicle weight reduction of Urban MAGLEV system, the energy consumption per person is similar with the K-AGT system. The Urban MAGLEV system is more efficient in long travel distance condition than in short running distance condition in the aspect of train performance.

• Proceedings of the KIEE Conference
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• 2009.04b
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• pp.192-194
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• 2009

Came to make a many development from the domestic railroad operation. The light rail transit enterprise is constructed plentifully. Consequently, the passenger safety importantly this, is recognized. The safety device which is applied in train control technique of the new railroad enterprise is important. Respects the updated technology development and an introduction of train control the safeguards is applied. Consequently, From the present paper researched the type and a technical development present condition of perception technique from platform safety device.

• Proceedings of the KIEE Conference
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• 2005.10c
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• pp.264-269
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• 2005

Light Rail Transit(LRT) Systems with transport capacity between subway and bus(5,000-25,000 persons per hour) are being carried on over 100 lines around the world, In Korea, to solve the urban transportation problem, the introduction of LRT system has been proceeded positively. It is planned to develop the Korean standard LRT system in which safety, efficiency and cost effectiveness are emphasized. So we were able to make proto type of Rubber tired AGT system for LRT. This is capable of driverless operation using CBTC(Communication Based Train Control) of Moving Block System and is currently making an experiment for reliability in test-line. This study is focused on verifving the performance of CBTC system for driverless and ATO mode through implementing the examination.

• Proceedings of the KIPE Conference
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• 2016.11a
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• pp.87-88
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• 2016

경전철 차량은 1MW이상의 전력을 요구하기 때문에 단일 인버터 시스템으로 구현할 경우 시스템 부피 및 비용 증가, 효율 감소 등 문제점을 가지게 된다. 이러한 이유로, 수 kW급 인버터 스택을 병렬로 구성하여 대용량 시스템을 구현한다. 본 논문에서는 이러한 대용량 인버터 시스템을 구성하는 스택 개발 사례를 보여주고 있다. 실험을 통하여 개발한 무선급전용 인버터 스택의 성능을 검증한다.

• Proceedings of the KIPE Conference
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• 2016.11a
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• pp.89-90
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• 2016

경전철 차량에 위치한 집전장치는 무선급전 인버터로부터 전력을 공급받아 동력계통 또는 에너지 저장장치에 전력을 전달하는 역할을 한다. 따라서, 집전장치의 손실을 최소화 하고 전력을 안정적으로 전달할 수 있는 제어방법이 필요하다. 본 논문은 이러한 필요를 만족하는 적절한 제어방법을 제안한다. 시뮬레이션을 통하여 제안한 집전장치 제어방법의 유효성을 검증한다.

• International Journal of Railway
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• v.2 no.4
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• pp.187-192
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• 2009

Running test of the Korean High-Speed Train using remote controlled measuring system have been executed on the high speed track in order to evaluate and verify the performance of the train. In this paper, influencing factors on the contact force which represents dynamic characteristics between the pantograph and contact wire are analyzed, according to the track condition, span type and running condition. By the analytical study on the test data, we figured out that contact force and dynamic characteristics of the pantograph are mainly affected by running behavior of the train and the span distance which the train passes.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1501-1514
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• 2008

Recently, so as to solve the urban transportation problem the LRT(Light Rail Transit) system has been studied on the essential technology and the engineering know-how, which lead lower construction cost and higher reliability. The localization development of rubber tired AGT(Automatic Guided Trainsit) system has performed from 1999 to 2004, as a national project of the Minister of Land, Transport and Maritime Affairs. For the application of the rubber tired AGT system in Busan Subway 3-2 Line, this study is focused on the reliability of aluminium profiles vehicle carbody and the establishment of the test and evaluation technologies. In this paper, 3D modeling simulation was applied to the load test of aluminium vehicle carbody. The reliability of the vehicle carbody was estimated as the fatigue test of welded aluminium profiles. From the test and simulation results, it could be concluded that the developed rubber tired AGT shows a good structural reliability and integrity.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1106-1112
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• 2008

Recently many new subway lines and light rail lines are demanded to build as CBTC system for advanced transportation needs. Already several lines are being installed and some other are planned this days. In early 2008, the first korean CBTC project, Bundang Line Intelligent Train Control System was finished successfully then it showed that many advantage of its functionalities to demonstrate. Nowaday, the technology of CBTC in Korea is not standing alone by itself yet, even though a lot of localization was done last decade include ATS (Automatic Train Supervision) and Radio Communication and manufactures and installations, because the core equipment of CBTC is rely on oversea technologies of major railway signal companies. KRRI has been preparing to develop the core equipment of CBTC (wayside ATP and onboard ATO/ATP) with other 14 local railway signal companies. Now they have consisted two consortiums to develop the core equipment by themselves. In this paper, I will mention about how we should focus on the output for viewpoint of interpretabilities between the two groups and review the case study of front developers efforts considering to standardizations we should be following.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1333-1343
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• 2008

Normally, the government or a local autonomous entity selects urban railway(subway, light rail transits etc.) system after investigating logicality about a route and announcing officially for people's convenience if the system is decided, suppliers of equipment(train, transformer, trolly wire, signal, communication, PSD, AFC etc.) are selected and ordering go forward. Stabilization of a total system is need for smooth train operation before opening to traffic by design, installation, total trial operation So, a measure against interface disharmony between each equipment is need. This treatise deals with the systematic method of management and items for interface plan from system design to opening on the evidence of experience of Gwangju subway total interface.