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김길동(Gil-Dong Kim),김재원(Jael-Won Kim),이한민(Han-Min Lee),이장무(Chang-Mu Lee),박현준(Hyun-Jun Park) 한국철도학회 2014 한국철도학회 학술발표대회논문집 Vol.2014 No.10
차세대전동차는 대불 시험선에서 8만km 신뢰성 주행시험이 진행 중에 있다. 차세대 전동차는 6량 1편성으로 제작되었으며, 신뢰성 검증을 위해 만차 상태로 주행시험을 하고 있다. 주행시험 동안 고장 데이터를 주기적으로 분석하였고, 성장평가를 수행하여 신뢰성 목표치를 만족하게 되었다. 따라서 본 논문에서는 차세대 전동차의 신뢰성 성장평가관리에 따른 결과를 보여준다. The AEMU(Advanced EMU) running test has been performed to verify the reliability in the DABUL test line. For reliability verification, the AEMU consists of a 6-car production is tested as full load. Periodically, failure data from running test is analyzed and system parts are modified to reflect the result of analysis. Because these remedy actions affect reliability, the AEMU can meet reliability target. In this paper, so far the reliability results of AEMU are presented.
김길동(Gil-Dong Kim),한영재(Young-Jae Han),박현준(Hyun-Jun Park),성낙규(Nark-Kuy Sung) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
In this paper, we studies VVVF inverter for 1C4M propulsion system of urban rail traction. This inverter is consisted of inverter stack, DB unit, and control unit. To prove performance of inverter carry out main track test. From test for VVVF inverter verifies excellent performance.
김길동(Gil-Dong Kim),이한민(Han-Min Lee),이장무(Chang-Mu Lee),정의진(Eui-jin Jung) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
We are developing the Advenced EMU(Electric Multiple Unit) as the commuter trains of 21st century. As we proceeded with the development of various systems and components, we built a prototype with the objective of evaluating and investigating these system changes comprehensively. Needs of EMU trains are cost reduction, Improvement of passenger Convenience, Improvement of Vehicle reliability, of energy reduction Consumption, Environmental friendliness.
철도차량장치의 점착력 추정에 의한 Anti-Slip 제어
김길동(Gil-Dong Kim),이호용(Ho-Yong Lee),안태기(Tae-Ki Ahn),홍재성(Jai-Sung Hong),한석윤(Suk-Youn Han),전기영(Kee-Young Jeon) 한국철도학회 2003 철도저널 Vol.6 No.4
In electric motor coaches, the rolling stocks move by the adhesive effort between rail and driving wheel. Generally, the adhesive effort is defined by the function of both the weight of electric motor coach and the adhesive effort between rails and driving wheel. The characteristics of adhesive effort is strongly affected by the conditions between rails and driving wheel. When the adhesive effort decreases suddenly, the electric motor coach has slip phenomena. This paper proposes a re-adhesion control algorithm which uses the maximum adhesive effort by instantaneous estimation of adhesion force using load torque disturbance observer. Based on this estimated adhesive effort, the re-adhesion control is performed to obtain the maximum transfer of the tractive effort.