A three-phase multilevel converter for high-power induction motors

被引:80
作者
Schibli, NP [1 ]
Nguyen, T [1 ]
Rufer, AC [1 ]
机构
[1] Swiss Fed Inst Technol, CH-1015 Lausanne, Switzerland
关键词
dc-dc converter; high-speed motor drives; multilevel converter; PWM modulation; three-phase converter;
D O I
10.1109/63.712325
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A new converter topology for drives is presented in this paper: a three-phase multilevel converter with separately regulated de power supplies, The de voltages are provided by medium-frequency de-de converters, The applications for the converter are especially high-power traction systems, where the voltage applied to the induction motor is bigger than 1 kV, The motor current is of a very high quality, compared to a classical three-phase converter. This allows keeping the switching frequency low by using phase-shifted pulsewidth modulation (PWM) carriers. Different modulation methods have been developed and simulated, Experimental tests have been made on a 12-kW prototype.
引用
收藏
页码:978 / 986
页数:9
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