Multilevel converters for large electric drives

被引:881
作者
Tolbert, LM [1 ]
Peng, FZ
Habetler, TG
机构
[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
[2] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA
关键词
cascade inverter; common-mode voltage; diode-clamped inverter; electric vehicle; motor drive; multilevel converter; multilevel inverter;
D O I
10.1109/28.740843
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper presents transformerless multilevel converters as an application for high-power and/or high-voltage electric motor drives. Multilevel converters: 1) can generate near-sinusoidal voltages with only fundamental frequency switching; 2) have almost no electromagnetic interference or common-mode voltage; and 3) are suitable for large voltampere-rated motor drives and high voltages, The cascade inverter is a natural fit for large automotive ail-electric drives because it uses several levels of de voltage sources, which would be available from batteries or fuel cells. The back-to-back diode-clamped converter is ideal where a source of ac voltage is available, such as in a hybrid electric vehicle. Simulation and experimental results show the superiority of these two converters over two-level pulsewidth-modulation-based drives.
引用
收藏
页码:36 / 44
页数:9
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