• Title/Summary/Keyword: Urban Maglev

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The Status of Developments and Services of Maglev Systems (자기부상열차의 개발 및 상용화 현황)

  • Kim Kuk-Jin
    • Proceedings of the KSR Conference
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    • 2005.05a
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    • pp.206-210
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    • 2005
  • The Maglev system is environmentally friendless system, has excellent running capabilities and lower life cycle cost. The Maglev has been developed by Germany and Japan since 1970's. Then, Transrapid of Germany, super high speed type, had started for commercial operating at Sanghai of China in the early of 2004. In March of this year, HSST of Japan, urban type, had been serviced at Tobukyuro Line which links between Nagoya and Aichi. Recently, in Korea, Maglev system has been reviewed for commercial application.

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Automatic Train Operation System Requirements Examination for Driverless Operation and Application Case of Urban Maglev Train (무인운전을 위한 자동열차운전장치 시스템 요구조건 검토 및 도시형 자기부상열차 적용사례)

  • Kang, Kyeong-Yong;Cho, Young-Wan;Park, Hee-Jun;Park, Chae-Young
    • Proceedings of the KSR Conference
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    • 2011.10a
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    • pp.1100-1107
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    • 2011
  • The light-rail system which is recently being built in Korea is a train control system based on driverless operation, and the train control system for urban maglev train under construction at the moment in Youngjong-Do, Incheon is pushed ahead based on driverless operation. In this paper, it compares train operation cases with manned operation and unmanned operation to examine system requirements for unmanned driving on train and detects system requirements of automatic train operation device for unmanned operation by analyzing unmanned operation cases which are currently operating or planed project and also introduces automatic train operation of urban maglev train and verifies whether the system for unmanned driving meets the requirements.

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Performance Test and Safety Evaluation of EMS Type Urban Transit Maglev System (II) (상전도자기부상식 도시형자기부상열차의 주행성능시험 및 평가 (II))

  • Jo, Hong-Je;Lee, Jong-Min;Kim, In-Geun;Jeong, Hyeon-Gap;Kim, Bong-Seop
    • 연구논문집
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    • s.27
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    • pp.5-13
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    • 1997
  • Test results of urban transit maglev system(UTM-01) are reported. Maglev project team in KIMM, in cooperation with Hyundai Precision Company and the Korea Electric Research Institute(KERI), has been developing a prototype urban transit vehicle since 1995. Since last May, we have been trying to improve performance of the first vehicle UTM-01 both in levitation and propulsion systems. In this paper, we report various test results of the vehicle UTM-01, present status and future prospect, and what have been done so far to assure its required performance.

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The Methods of Rail Joint Detection and Gap Signal Compensation for Levitation Control of Urban Maglev (도시형 자기부상열차 부상제어를 위한 궤도 이음매 검출 및 공극 신호의 보상 방법)

  • Kim, Haeng-Koo;Lee, Jong-Min;Kang, Byung-Kwan;Kim, Kuk-Jin;Kim, Chun-Kyung
    • Proceedings of the KSR Conference
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    • 2007.05a
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    • pp.922-927
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    • 2007
  • The present urban maglev which has been developed in Korea is controlled by 4-edge control method over each bogie. The control output which is derived from two gap sensors and one vertical acceleration sensor controls magnet to maintain a nominal gap. But, the gap signal acts as a big disturbance in rail joint though two gap sensors are used and finally result in unstable response and poor ride comfort. This paper treats of a method to compensate the gap signal in rail joint for the levitation control of urban maglev. The physically abnormal change of gap is detected when one gap sensor passes a rail joint, the disturbance of gap in rail joint is estimated. Finally the disturbance in gap signal is eliminated by processing the information of vehicle speed and estimated disturbance in when the other gap sensor passes a rail joint.

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A Study on the Method to Prepare System Operational Concept for Practical Use Project of Urban Maglev train (도시형 자기부상열차 실용화사업을 위한 시스템 운영개념 작성 방안에 대한 연구)

  • Chung, Kyung-Ryul;Park, Chul-Ho;Yoon, Se-Kyun;Kim, Chan-Mook
    • Proceedings of the KSR Conference
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    • 2007.05a
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    • pp.1505-1510
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    • 2007
  • When developers conduct a systems engineering approach the first problems that they will be faced are how to define and analyze the operational concept. In case of practical use project of MAGLEV train, those problems are also important since end products of practical use project must be assured for commercial service level. Lack of domestic developer's experience on systems engineering activity can cause a confusion a progress of the project. This study will propose a guide to establish an operational concept of project to develop or construct urban transit system.

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Review on RAM Data Management to Urban Maglev Transit (자기부상열차 RAM DATA 관리방안)

  • Lee, Chang-Deok;Kang, Chan-Yong
    • Proceedings of the KSR Conference
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    • 2007.11a
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    • pp.191-196
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    • 2007
  • This paper is reviewed RAM(Reliability, Availability and Maintainability) data table utilized for RAM data management to Urban Maglev Transit. As railway systems become more complex, the RAM requirements are reinforced to ensure that a design meets Reliability, Availability, Maintainability criteria. Therefore, it needs the efficient management for RAM data of railway system to meet RAM target. At this study, RAM data management format is suggested to ensure reliability and maintainability based on acquired experience for overseas rolling stock. This RAM data table and FMECA(Failure Mode Effect Criticality Analysis) table are useful to the calculation of MTBF(Mean Time Between Failure), MTBSF(Mean Time Between Service Failure) and Maintainability. Also, this RAM management table will be efficient to improve the RAM evaluation to Urban Maglev Transit.

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Measuring Power Dissipation for Urban Maglev Vehicle (도시형 자기부상열차 전력 측정)

  • Park, Jeong-Ung;Kim, Bong-Seop;Lee, Jang-Yeol;Kim, Haeng-Gu
    • Proceedings of the KSR Conference
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    • 2011.10a
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    • pp.3092-3098
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    • 2011
  • This paper deals with analysis of measuring power dissipation when Maglev is running. With the various running scenarios for Maglev, power dissipation was measured and a comparative analysis of it and wheel-on rails were carried out. The purpose of this paper is to confirm the efficiency and economics on operation of Maglev and reflect detail design later. When the running scenarios of Maglev are the status of landing on and levitation, running at rated acceleration and deceleration and according to changes of velocity, the power dissipation was measured. The measured results are analyzed considering with apparent electric power and active power, reactive power and power factor etc. Due to the limited test track condition, it is very limited to compare and analyze Maglev and general trains. Nevertheless, It is a task of great significance to identify the efficiency and economics on operating Maglev through the results of measuring power dissipation. In the future, measuring power dissipation through more various scenarios will be carried out, and the results will be reflected the design.

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A Study on the Disturbance Reduction of Magnetic Levitation System using the EMS Method (EMS 방식 자기부상 시스템의 외란 저감을 위한 연구)

  • Park, Eung-Seok;Lee, Ju;Jin, Chang-Sung
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.64 no.2
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    • pp.338-341
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    • 2015
  • From the past, maglev technique study(mainly for transportation like maglev) has been done. In the domestic, urban maglev train is practical steps now. High-speed maglev train(550km/h) development comes complete, followed by Japan. This year, system of High-speed maglev train(550km/h) is expected to be verified. This paper simulate FEM model for EMS(Electro-Magnetic Suspension) maglev system and verify tendency of reducing disturbance.

Simulation of a Maglev Vehicle Running on the Flexible Guideway (유연궤도를 고려한 자기부상열차 주행 시뮬레이션)

  • Han Hyung-Suk;Kim Young-Joong;Shin Byung-Chun;Kwon Jeong-Il
    • Journal of the Korean Society for Railway
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    • v.9 no.4 s.35
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    • pp.499-503
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    • 2006
  • Maglev vehicles, which are levitated and propelled by electromagnets, often run on elevated flexible guideways comprised of steel, aluminum and concrete. Therefore, an analysis of the dynamic interaction between the Maglev vehicle and the flexible guideway is needed in the design of the critical speed, ride, controller design and weight reduction of the vehicle. This study introduces a dynamic interaction simulation technique that applies structural dynamics. Because the proposed method uses detailed 3D FE models, it is useful to analyze the deformation of the elevated flexible guideway, the dynamic stress, and the motion of the vehicle. By applying the proposed method to an urban transit Maglev vehicle, UTM01, the dynamic response is simulated and validated. From the result of the study, we concluded that the simulation of dynamic interaction between the Maglev vehicle and the flexible guideway is possible and a potential of using computational mechanics.

Simulation of Dynamic Interaction Between Maglev and Guideway using FEM (FEM을 이용한 자기부상열차/궤도 동적 상호작용 시뮬레이션)

  • Han Hyung-Suk;Kim Dong-Sung;Lee Jong-Min;Kang Heung-Sik
    • Proceedings of the KSR Conference
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    • 2004.10a
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    • pp.363-368
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    • 2004
  • Maglev vehicles, which are levitated and propelled by electromagnets, often run on elevated guideways comprised of steel, aluminum and concrete. Therefore, an analysis of the dynamic interaction between the Maglev vehicle and the guideway is needed in the design of the critical speed, ride, controller design and weight reduction of the guideway. This study introduces a dynamic interaction simulation technique that applies FEM. The proposed method uses FEM to model the elevated guideway and the Maglev vehicle, which is different from conventional studies. Because the proposed method uses FEM, it is useful to calculate the deformation of the elevated guideway, the dynamic stress, and the motion of the vehicle. By applying the proposed method to an urban transit Maglev vehicle, UTM01, the dynamic response is simulated according to velocity increase and can be reviewed again. From the result of the study, we concluded that FEM simulation of the dynamic interaction between the maglev vehicle and the guideway is possible.

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