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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title Analysis on Conductive Noise of High-Speed Train Including Pantograph Detachment
Authors Sung-Gyen Lee ; Young-Maan Cho ; Kwang-Cheol Ko
DOI http://dx.doi.org/10.5207/JIEIE.2013.27.12.087
Page pp.87-92
ISSN 1225-1135
Keywords Conductive Noises in High-Speed Train ; Pantograph Detachment ; Switching Frequency
Abstract In high-speed train, the EMI is generated by pantograph detachment and switching device of motor-block. Especially, the conductive noise flows through rail as return feeder influences unintended results to sub-station, transformer, etc. These phenomena were investigated by PSIM circuit analysis tool and each part of railway system is modeled by circuit elements and switching devices. Consequently, the distorted wave in return feeder current occurs by the high speed switching frequency, and the overvoltage is applied by the pantograph detachment. Also the distortion of return current is high in starting point and it decreases from the proximity of a starting point ro the end of terminal.