• Title/Summary/Keyword: Railway Electrification System

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Development of Simulator for Managing and Planning the Catenary System Using Current Map (전류 Map을 이용한 전차선로 용량관리 프로그램개발)

  • 오광해;이한민;창상훈
    • Proceedings of the KSR Conference
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    • 2001.05a
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    • pp.333-340
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    • 2001
  • This paper presents development of the program which calculates the electric quantities such as current, voltage at each element of railway electrification system in static state. The purpose of this program is to estimate the adequacy of railway electrification system through simulations. And it contributes the estimations for optimal railway electrification system by calculating the maximum current and voltage. The simulation program is coded through GUI(Graphic User Interface) technique for user to operate easily.

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Development of Current Distribution Analysis Program for Railway Electrification System (전차선로의 전류분포분석 프로그램 개발)

  • 이욱화;김정훈;홍재승;오광해;창상훈
    • Proceedings of the KSR Conference
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    • 1999.05a
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    • pp.336-343
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    • 1999
  • This paper presents development of the program which calculates the electric quantities such as current, voltage at each pan of railway electrification system in static state. The purpose of this program is to estimate the adequacy of railway electrification system through simulations. And it contributes the estimations for optimal railway electrification system by calculating the maximum of current and voltage. The results are represented through GUI(Graphic User Interface) for user to understand easily.

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REAL-TIME MONITORING TECHNOLOGY OF RAILWAY ELECTRIFICATION SYSTEM (철도시스템 전기설비의 실시간 모니터링 기술)

  • Park, Young;Jung, Ho-Sung;Kim, Hyung-Chul;Jeong, Kyu-Won;Park, Ki-Yub
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2007.06a
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    • pp.476-477
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    • 2007
  • The development of real-time monitoring technology provides reliable, timely information of railway maintenance and play a important role in determining the conditions of railway electrification system. Image motoring and wireless communication systems are currently used as remote transducer for real-time monitering. In this paper, we describe a real-time monitoring technology of railway electrification system based on the concept of high-voltage application, using the image processing and telemetry system methodology. the system and its performance for especially with regard to real-time monitering and railway electrification maintenance.

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Development of Condition Monitering Technology for Railway Electrification System (철도 전기시설물의 상태진단 향상 기법)

  • Park, Young;Jung, Ho-Sung;Kim, Hyung-Chul;Kewon, Sam-Young;Park, Hyun-June
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2007.11a
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    • pp.500-501
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    • 2007
  • Automation systems for higher performance and efficiency in railway electrification systems are driving ever more demanding needs for new condition monitering systems which can consist of sensors connected to the substation and catenary systems. This paper reviews the recently developed condition monitering system, based on a IP network-based multi-agent system, wireless communications and sensor networks for railway electrification system. A new concept for information management, condition monitoring and control of power transmission are considered as railway automation in electrification system.

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A Study on technical items in the speed-up of catenary system according to a conventional railway′s electrification (기존선 전철화에 따른 전차선로의 스피드업관련 기술사항에 대한 고찰)

  • 안영훈;강창호
    • Proceedings of the KSR Conference
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    • 2002.10a
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    • pp.516-521
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    • 2002
  • This paper was reviewed technical items of catenary system for electrification of Gyeongbu(Dongdaegu∼Busan) and Honam(Daejeon∼Mokpo) conventional Railways. The lines have adopted new technical items in order to connect to Gyeongbu high speed railway. We can use the technology and experience of Gyeongbu and Honam lines to a new catenary system design up-graded for speed-up of conventional lines and new lines construction.

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Real-time condition assessment of railway tunnel deformation using an FBG-based monitoring system

  • Zhou, Lu;Zhang, Chao;Ni, Yi-Qing;Wang, Chung-Yue
    • Smart Structures and Systems
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    • v.21 no.5
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    • pp.537-548
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    • 2018
  • A tunnel deformation monitoring system is developed with the use of fiber Bragg grating (FBG) sensing technique, aiming at providing continuous monitoring of railway tunnel deformation in the long term, and early warning for the rail service maintainers and authorities to avoid catastrophic consequences when significant deformation occurs. Specifically, a set of FBG bending gauges with the ability of angle measurement and temperature compensation is designed and manufactured for the purpose of online monitoring of tunnel deformation. An overall profile of lateral tunnel displacement along the longitudinal direction can be obtained by implementing an array of the FBG bending gauges interconnected by rigid rods, in conjunction with a proper algorithm. The devised system is verified in laboratory experiments with a test setup enabling to imitate various patterns of tunnel deformation before the implementation of this system in an in-service high-speed railway (HSR) tunnel.

A Study on General Purpose Analysis Technique for Railway Electrification System (정교한 전차선로의 회로모델링 및 범용성 해석 기법 개발)

  • 홍재승;오광해;창상훈;김발호;김정훈
    • Proceedings of the KSR Conference
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    • 1999.11a
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    • pp.296-301
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    • 1999
  • This paper presents a new static circuit modeling methodology amenable to analysing the electric railway system. The accuracy and practicability of the proposed approach are demonstrated with the railway system containing 2 to 6 train

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Analysis of Power Quality in the Substation of Honam Electrification Line according to Running Characteristic of Electric Locomotive (호남선 EL8100 전기기관차시험 운행에 따른 급전시스템 전력품질 특성 검토)

  • Shin Chang-Ki;Han Moon-sub;Lee Jang-mu;Jang Dong-uk;Lee Han-min
    • Proceedings of the KSR Conference
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    • 2004.06a
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    • pp.1292-1296
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    • 2004
  • This study is experimented results of running characteristics about electric locomotive. it executed to study a power quality in the substation of Honam electrification line and to promote knowledge, observation and management in electric rail-system. we measured to know the more exactly running characteristics that electric locomotive and electric substation at the same time.

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A Study on Technologies for Measuring Static Condition of Rigid Conductor System in Railway Electrification (전기철도 강체전차선로의 정적 상태 검출 기술 연구)

  • Na, Kyung Min;Lee, Kiwon;Park, Young
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.32 no.6
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    • pp.507-511
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    • 2019
  • The purpose of an electric railway system contact wire is to supply electric energy to trains through a contacted pantograph. This energy is then converted into mechanical energy. Recent developments in overhead contact lines include the increase in the tension force up to 34 kN according to train speeds that reach up to 400 km/h with a verified safety. Rigid conductor catenary (R-Bar) for high speeds of up to 250 km/h have been developed in tunnels to save on construction costs. This is significant because minor defects in R-bars in aspects, such as height and stagger affect installation conditions. In this study, we propose the use of a detector that measures the static characteristics to reduce the R-bar installation errors. This detector has been developed to measure the height and stagger of the contact wire using video images.

The cause analysis of broken accident on messenger wire in catenary system (수도권 전철구간에서 발생한 조가선 절단원인 분석)

  • Jang Dong-Uk;Lee Ki-Won
    • Proceedings of the KSR Conference
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    • 2003.10c
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    • pp.552-557
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    • 2003
  • The catenary system used in urban electrification railway have suffered mechanical and chemical stresses. These brought out severe messenger wire problems, these have caused accident. Especially, messenger wire is severely influenced by corrosion, vibration and tension. This paper investigate for the cause analysis of broken accident on messenger wire in catenary system. To analyze the cause analysis of accident, we have conducted experiment such as XRD, SEM, EDX and tensile test.

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