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이광국(K. K. Lee),김원경(W. K. Kim),김명룡(M. Y. Kim),윤성철(S. C. Yoon),백광선(K. S. Baik) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
Electric vehicle that is manufactured present by development of electric vehicle technology were available automatic driving, Control of air breaking system for precision stopping is important at automatic driving, Current Electric vehicle is doing precision stopping using braking force control. Braking force control is difficult to take static deceleration by rail condition or change of friction coefficient. Therefore, Proposed the controller in this study is deceleration controller. Designed controller is a robust controller that take state control characteristic for modelling error.
AC 25kV, DC 3kV 겸용 전동차용 추진제어시스템 개발 및 적용
이광국(K.K. Lee),권일동(I.D. Kwon),정은성(E.S. Chung),한정수(J.S. Han) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.10
철도차량은 입력전압에 따라 AC 급전방식 차량, DC 급전방식 차량으로 나눠지고 급전되는 전차선의 전압에 따라 운행 선로의 제약을 받게 된다. 그래서 이런 제약을 해소하기 위해 AC/DC 급전 방식에 상관없이 운행 선로를 운행 할 수 있는 AC/DC 겸용 차량이 개발되었고 국내에서는 AC25kV 와 DC1500V 를 혼용하여 급전할 수 있는 차량이 운행 중이다. 해외의 경우 다양한 입력전압으로 여러 조건의 입력전압에 대한 겸용차량이 필요하며 본 논문에서는 AC25kV 와 DC 3,000V 를 혼용하여 운행 할 수 있는 철도차량의 추진제어시스템의 개발 및 적용 사례를 설명한다. The electric multiple unit(EMU) uses AC power or DC power according to the feeding voltage of power station. so the EMU that is designed for one voltage level can"t operate the rail way applied other voltage level. For solving this problem, we already have developed the dual voltage system EMU for AC25kV and DC1.5kV and we have used them in revenue service interior. In foreign countries, there are various voltage level AC25kV/50Hz/60Hz, DC750V, DC1.5kV, DC3kV, etc. In this document, we describe the development and application for the propulsion system applied in AC25kV, DC3kV dual voltage.
이광국(K.K. LEE),김동명(D.M. KIM),권일동(I.D. KWON) 한국철도학회 2005 한국철도학회 학술발표대회논문집 Vol.- No.-
In this paper, Development of propulsion system using IPM(Intelligent Power Module) for DC electric vehicle is proposed. Designed propulsion system is comprised of inverter stack which includes 6 IPM, BCH(Breaking Chopper) unit, FC(Filter Capacitor), Control unit. IPM can compose propulsion system simple by including gate drive circuit and protection circuit. Inverter stack is designed as a simple structure using IPM and non clamp capacitor. VVVF Inverter control is used the vector control strategy at low velocity region and slip frequency-control strategy at high velocity region. Designed propulsion system proves the performance through test and revenue service.