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120㎞/h급 교류 전동차용 추진제어장치(Converter/Inverter) 개발 및 성능 특성
김태윤(Kim Tae Yun),노애숙(Kno Ae Sook),김명룡(Kim Myung Ryong),백광선(Baik Kwang Sun),이상준(Lee Sang Jun),최종묵(Choi Jong Mook) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
In this paper, development and performance characteristic of propulsion system(Converter/Inverter) using IPM(Intelligent Power Module) for 120㎞/h AC electric vehicle is proposed. The proposed propulsion system is comprised of IPM converter and inverter stack which uses natural air-cooling system, DC-Link, OVCRf unit and control unit. And also 2-Parallel operation of two PWM converter is adopted for increasing capacity of system and the VVVF inverter control is used a mixed control algorithm, where the vector control strategy at low speed region and slip-frequency control strategy at high speed region. The proposed propulsion system is verified by main line test results as well as combined test results. I
전창성(Jeon Chang Sung),류준형(Ryu Joon Hyoung),백광선(Baik Kwang Sun),윤성철(Yoon Sung Cheol),김명룡(Kim Myung Ryong),김원경(Kim Weon Kyung) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
A ride quality measurement was carried out for commuter and express train used in airport railway. Lateral and vertical directional average ride quality level is higher than that of longitudinal direction. Because express train is faster than commuter train, the average ride quality level of express train is higher compared to that of commuter train. The average ride quality level of commuter train is between "good comfortable(100~105㏈)" and "very good comfortable(below 100dB)". The average ride quality level of express train is between "not comfortable(105~110㏈)" and "good comfortable(100~105㏈)". In spite of the scheduled speed is higher(more than 70㎞/h for commuter train, more than 80㎞/h for express train) than other lines, the ride quality of airport railway train is good. The reason is that there is little gradient in rail and the radius of curvature is larger compared to that of other lines.