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차재완,정인수,조광우,Cha, Jae-Hwan,Chung, In-Soo,Jo, Kwang-Woo 한국시스템엔지니어링학회 2008 시스템엔지니어링학술지 Vol.4 No.1
As a supply contract for 100 new high-speed rolling stocks(KTX-II) was made 8th June 2006, System Engineering process has been applied to introduce the high-speed rolling stocks successfully and to manage the total life cycle systematically from Pre-concept Phase, Contract Phase, Preliminary and Critical Design Review, Production, Test and Verification, Acceptance and Operation to assurance for a flaw.
전기철도의 부하패턴 분석을 통한 피크 에너지 절감방안 연구
전용주(Jeon Yong Joo),이유경(Lee Yu Kyung),조광우(Jo Kwang Woo),이성욱(Lee Sung Uk) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper presents the methods to reduce peak energy by using load consumption pattern analysis. Base on the substation annual power usage data, the characteristic of the substation power consumption have investigated. With this investigation the control target load has been determined. Mose of power usage comes from the motor car, so power system and load table of motor car were reviewed. In the metropolitan area the peak power consumption occurs at summer or winter rush hours. The biggest gap between monthly max and min peak are 1.9 times. From this data control point of time are determined. Through the whole study the methode to control the power Peak consumption are proposed.
안전한 고객수송서비스를 위한 KTX-II RAMS 적용기준
차재환(Cha Jae-hwan),정인수(Chung In-soo),조광우(Jo Kwang-Woo) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Currently, it has been a fashion to include RAMS of rolling stock in the order for purchasing the rolling stock. However, it’s only to suggest a qualitative value or an ideal target without giving or demonstrating actual RAMS target, with only demonstrating passive RAMS by the data provided by the manufacturer. In the case of KTX project of 100 cars of KTX-Ⅱ contracted in June 2006, their target has been suggested from the previous RAMS application standard and it aimed to achieve the reliability level of equivalent high speed rolling stock. Afterward, as actual KTX-Ⅱ RAMS Plan and RAMS Demonstration Plan has been prepared and approved, it has been the first problem to secure the reliability and safety in order to introduce the new high speed rolling stock(KTX-Ⅱ) successfully and we actually tried to apply overseas RAMS standard, KTX samples, electric railcar MTRC and rolling stock samples. This Report was dealt world trends of Railway RAMS standard, KTX-II RAMS Specifications, the present condition of KTX-II RAMS performance and development a way of KTX-II RAMS, We hope the “KTX-Ⅱ RAMS Application Standard for Safety of Passenger Transportation Service” is served as an opportunity for the basic research for establishing and demonstrating RAMS target of components or parts composing the rolling stock system.