KIEE - The Transactions of the Korean Institute of Electrical Engineers

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The Transactions of the Korean Institute of Electrical Engineers

The Transactions of the Korean Institute of Electrical Engineers

ISO Journal TitleTrans. Korean. Inst. Elect. Eng.

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Title	Three level ZCT IGBT inverter for High Power Applications
Authors	이성용(Lee, Seong-Yong) ; 이동호(Lee, Dong-Ho)
Page	pp.34-41
ISSN	1975-8359
Keywords	Three-level inverter ; ZCT ; Midpoint charge balance
Abstract	A three-level ZCT(Zero Current Transition) IGBT inverter is presented for high power IGBT inverters. The concept of ZCT for the conventional boost converter is extended to the three-level inverter. Moreover, in order to improve the reliability of inverter, midpoint charge balance problem of the three-level inverter is analyzed with respect 150kw, 20kHz prototype are presented to verify the principle of ZCT Operation

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