• Title/Summary/Keyword: electrical tilting

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Study of Tilting Train Pantograph Control System (틸팅차량용 판토그라프 제어기술 연구)

  • Lee, Su-Gil;Han, Seong-Ho;You, Won-Hee;Shin, Gwang-Bok
    • Proceedings of the KIEE Conference
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    • 2002.11d
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    • pp.353-355
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    • 2002
  • This paper describes the pantograph design result for tilting train at conventional railway. EMU(Electrical Multiple Unit) Tilting Train is important tilting pantograph. Tilting train pantograh should be operated to commercial service speed 180Km/h of 200Km/h at KNR upgrade railroad. This paper is write tilting train pantograph control system.

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Design of Tilting Train Pantograph for Conventional Rail Speed-Up (기존선고속화를 위한 틸팅차량용 판토그라프 설계)

  • Lee, Su-Gil;Han, Seong-Ho;You, Won-Hee;Kyoung, Jin-Ho
    • Proceedings of the KIEE Conference
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    • 2002.07b
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    • pp.1295-1297
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    • 2002
  • This paper describes the pantograph design result for tilting train at conventional railway. EMU(Electrical Multiple Unit) Tilting Train is important tilting pantograph. Tilting train pantograh should be operated to commercial service speed 180Km/h of 200Km/h at KNR upgrade railroad. This specification pantograh tested using catenary-panto dynamic simulation

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Developmentof Dual Polarized Base station Antenna with Electrical Down tilting (전기적 다운 틸팅 기능을 갖는 이중 편파 기지국 안테나 개발)

  • Lee, Chang-Eun;Yun, Jong-Sup;Moon, Young-Chan;Hur, Jung
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.41 no.7
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    • pp.81-88
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    • 2004
  • In case of mechanical down tilting, a horizontal pattern is distorted and beam width widens whenincreasing tilt angle, which causes an expansion of hand off region and burden base station equipment. In contrast, electrical down tilting has advantage that horizontal HPBW is kept constant with down tilting. In this paper, based on a phased array technology, dual polarized base station antenna with electrical down tilting was developed at 800MHz band. The antenna has down tilting range of 0$^{\circ}$ to 14$^{\circ}$, and 15㏈i gain. We use stacked microstrip patch as a radiated element and apply balanced feed technique to improve isolation between ports and discrimination of cross polarization. The effect of electrical down tilting was verified by field test.

A Study on the Possible Running Time Estimation of Tilting Train on the Gyeongbu line (경부선 틸팅열차의 가능 운전시간 추정 연구)

  • Rho, Hag-Lae;Han, Seong-Ho
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.64 no.4
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    • pp.199-206
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    • 2015
  • A rising attention is paid to the railway system in many countries. KOREA is also of the opinion that the railway has to play a more important role in the near future to face up to the problems that increase gradually in the transport sector. To attract more traffic to the rail networks, it is important for rail modes to have running time competitiveness. Tilting trains, where it is possible to tilt the car-body towards the center of the curve, are a less expensive alternative to shorten travelling times on existing lines. Running time for tilting train is one of the most important factors, with which passenger demand forecasting or economic feasibility analysis will be done. This paper evaluates the speed limitation of tilting train around curves and also presents calculation process of its simulated possible running time. Then the adequacy of estimated time is verified with running time for Korean protype tilting train TTX (Tilting Train eXpress) by actual test run. As a case study, the estimated running time for the production version of tilting train and its time saving are presented compared with 2012's conventional Saemaul trains and non-tilting trains on the Gyeongbu line in the Korean rail network.

Development of tilting simulator for evaluation of Tilting control of Highspeed Tilting EMU(TTX) (고속틸팅전기차량(TTX)의 틸팅제어성능 검증을 위한 시뮬레이터 개발)

  • Han, Seong-Ho;Kim, Jung-Suk;Song, Young-Su;Lee, Su-Gil
    • Proceedings of the KIEE Conference
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    • 2004.04a
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    • pp.232-234
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    • 2004
  • Tilting train has been developed to increase the operational speed of the trains on conventional lines which have many curves. This train are tilted at curves to compensate for unbalanced carbody centrifugal acceleration to a greater extent than compensation produced by the track cant, so that passengers do not feel centrifugal acceleration and thus trains can run at higher speed at curves. This paper developed tilting control simulator to evaluate tilting control performance of TTX(tilting train express) with maximum operation speed 180 km/h.

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A Study on Design of the Dynamic Simulator for the Korean Tilting Train (한국형 틸팅 차량 동특성 주행 시뮬레이터 설계에 관한 연구)

  • Kim Jung-Seok;Ko Tae-Hwan;Han Sung-Ho
    • Proceedings of the KSR Conference
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    • 2003.10c
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    • pp.401-405
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    • 2003
  • This paper presents a design strategy of the dynamic simulator for the Korean tilting train. The tilting train simulator will generate the tilting motion to the lateral acceleration date obtained from the train dynamic analysis. The simulator will be composed of five components: (1) GUI control panel, (2) train dynamic analysis part, (3) tilting control part, (4) motion base with 6 electrical-motor-driven actuators and (5) visualization system. Using the simulator, we will verify the dynamic behaviors of the tilting train, interfaces among subparts and ride comfort before manufacturing of the tilting train.

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Study of measuring electrical signal for diagnosis of tilting train (TTX) during operation (틸팅열차 운행중 열차 전단을 위한 전기신호 계측 연구)

  • Lim, Jae-Chan;Kim, Jae-Chul;Han, Soung-Ho;Lee, Su-Gil
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2008.10a
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    • pp.49-52
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    • 2008
  • It's essential to measure electrical signals of Korea tilting train "Hanvit 200" during operation, Because we need to study operation characteristics of new electric "Hanvit 200" and we want to develop diagnosis system of main circuit of Korea tilting train "Hanvit 200". So, we measure electrical signals for developing diagnosis system of "Hanvit 200" during operation. We measure voltage and current of the primary winding of main transformer and analyze then. In result, we know that each operation mode has specific waveform and frequency. In addition, we also measure arc currents and arc voltage and we know that are of each situations has specific waveform of pattern.

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Reliability assesment of tilting train using Fault Diagnosis analysis device (고장진단분석장치를 이용한 틸팅열차 신뢰성 평가 연구)

  • Han, Seong-Ho
    • Proceedings of the KIEE Conference
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    • 2009.07a
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    • pp.1203_1204
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    • 2009
  • Korean Tilting trains have tested on conventional lines since the beginning of 2007 for evaluating its reliability. We achieved some major performance tests which are the maximum operation speed 180km/h test and the maximum curves increasing speed with tilting operation test. In order to analysis reliability data of tilting train, we have used the special data aquisition system which consists of monitor, sensors and depot computer etc. As a results of calculation, until now we realized that the reliability are getting more increasing than starting point of running test.

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Design of Basic model of system engineering for developing Tilting Train (틸팅차량개발 시스템엔지니어링체계 기본모델연구)

  • Han, Seong-Ho;Lee, Su-Gil;Shin, Gwang-Bok;You, Won-Hee;Kim, Gin-Hun
    • Proceedings of the KIEE Conference
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    • 2002.11d
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    • pp.350-352
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    • 2002
  • In order to speed up basic concept is to enhance high speed, curve limit speed, cross limit speed, acceleration/deceleration speed. It is important to optimal interface, fundamental technology of vehicle, rail, electrical power, and signal system. Tilting train has advantage minimizing investment cost of infra railway system for increasing train limit speed in curve. the developed tilting train should be operated to commercial service speed 180km/h of 200km/h at KNR upgrade railroad. This paper proposed the basic model of system engineering for developing of tilting EMU(maximum operation speed : 180km/h) with speed-up of conventional railway system.

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Study of Tilting Train Pantograph Control System for EMU

  • Lee, Su-Gii;Han, Seong-Ho;Koo, Dong-Hea;Lee, Woo-Dong;Han, Yong-Jae
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.1754-1756
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    • 2003
  • This paper describes the pantograph design result for tilting train at conventional railway. EMU(Electrical Multiple Unit) Tilting Train is important tilting pantograph. Tilting train pantograh should be operated to commercial service speed 180Km/h of 200Km/h at KNR upgrade railroad. This paper is written about train pantograph control system

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