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http://dx.doi.org/10.7782/JKSR.2016.19.1.38

Effect Analysis of Classical Line TI-21 type Audio Frequency Track Circuit from KTX Sancheon Return Current Harmonics  

Choi, Jae Sik (Department of Technology Research, KORAIL Research Institute)
Kim, Hie Sik (Department of ECE, University of Seoul)
Park, Ju Hun (Department of Technology Research, KORAIL Research Institute)
Kim, Bun Gon (Department of Technology Research, KORAIL Research Institute)
Publication Information
Journal of the Korean Society for Railway / v.19, no.1, 2016 , pp. 38-45 More about this Journal
Abstract
The power transformation system of High Speed rolling stocks like KTX-Sancheon has shown excellent control capacities in the areas of riding comfortability, switching efficiency, safety and energy consumption due to technical developments in power-electronics, high speed & large scale integrated semiconductors and microprocessors. However, harmonics from IGBT, a high speed switching device used in the Convertor & Invertor equipment of rolling stocks have given rise to various problems in transformer substations, signaling systems, data transmission systems and facility monitoring systems. Especially, TI21 non-insulated track circuits have malfunctioned due to the influence of returning current harmonics which were generated at around of integer times of the number of power transformation equipment in the frequency domain. This paper, measures and analyzes various schemes to analyze the traveling path of the returning current harmonics generated due to the relationship between the rolling stocks and track circuits on site. Ultimately, theseschemes will be used to design high speed rolling stocks, AF track circuits and a common grounding network.
Keywords
KTX-Sancheon; AF Track circuit(TI-21); Return current harmonics; IGBT;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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