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- W2000808107 abstract "HEP(Head Electric Power) system, supplying 3-phase service power to the coach vehicles, is a kind of special auxiliary power equipment which is boarded on 8200 series electric locomotives in KORAIL. This equipment shares high voltage DC link with a main propulsion converter/inverter systems. It was difficult to use high frequency PWM technique so that GTO has been used as a power device same like the main power system. Due to low PWM frequency(300㎐) of HEP inverter, the output voltage has less power quality comparing to normal SIV(Static Inverter) system. In this paper, an optimal PWM strategy is presented for new IGBT type HEP inverter system. Several PWM techniques were investigated to improve output voltage quality under fixed lower filter inductance and not high PWM frequency. Finally PC simulations have been done to clarify its availability." @default.
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- W2000808107 date "2013-11-01" @default.
- W2000808107 modified "2023-10-17" @default.
- W2000808107 title "A Study on Optimized PWM Strategy to Improve Output Voltage Quality of HEP System Boarded on 8200 Series Electric Locomotives" @default.
- W2000808107 cites W2046158062 @default.
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- W2000808107 doi "https://doi.org/10.5370/kiee.2013.62.11.1628" @default.
- W2000808107 hasPublicationYear "2013" @default.
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