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http://dx.doi.org/10.5370/KIEEP.2010.59.2.185

The Estimation on Switching Technique via Output Power Source Analysis of Power Conversion System in an Electric Railway Vehicle  

Kim, Jae-Moon (한국철도대학 철도차량전기과)
Lee, Eul-Jae (이경산전(주))
Yun, Cha-Jung (한국철도공사)
Kim, Yang-Su (한국철도대학 철도차량전기과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.59, no.2, 2010 , pp. 185-190 More about this Journal
Abstract
This paper presents the estimation on switching technique via output power source analysis of power conversion unit in electric railway vehicle. The focus of this study suggested an alternative on critical problems by using head electric power(HEP). To achieve this, we have measured output power of HEP, and measurement devices set up at output of transformer connected HEP to analysis quality on output power source of head electric power(HEP) unit in electric railway vehicle. Using results of measurement of it, parameters are assumed for simulation to confirm estimation on switching technique. It is confirmed that switching technique is Selected Harmonic Elimination PWM(SHEPWM) and inverter switching frequency is less than 500[Hz]. Throughout experiment and simulation, it is estimated that switching technique used HEP is advanced SHEPWM and switching frequency is about 300[Hz]. Also leakage inductance in transformer is about $180[{\mu}H]$ less than $365[{\mu}H]$ known.
Keywords
Switching Technique; Head Electric Power(HEP); Selected Harmonic Elimination PWM(SHEPWM);
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