Start-up Procedure and Switching Loss Reduction for a Single-Phase Flying Capacitor Active Rectifier

被引:32
|
作者
Sepahvand, Hossein [1 ]
Khazraei, Mostafa [1 ]
Corzine, Keith A. [1 ]
Ferdowsi, Mehdi [1 ]
机构
[1] Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA
基金
美国国家科学基金会;
关键词
Flying capacitor (FC); single-phase active rectifier; start-up procedure of active rectifier; switching loss reduction; MULTILEVEL CONVERTERS; MULTICELL CONVERTERS; PWM STRATEGIES; VOLTAGE; IMPLEMENTATION; INVERTERS;
D O I
10.1109/TIE.2012.2204709
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper describes a research conducted on a single-phase flying capacitor active rectifier. An online process that reduces the total number of switching events, which leads to a reduction of switching losses in the converter, is introduced. This method is based on redundant state selection, which is used to regulate the voltage of flying capacitors. The proposed approach is general and can be applied to flying capacitor converters with any number of levels. Furthermore, in order to control the inrush current at the start of operation and avoid extra voltage and current stress for active switches and capacitors, a start-up procedure that precharges the flying capacitors is proposed. With this precharge procedure, no additional hardware is needed. Simulation and laboratory results demonstrate these new concepts.
引用
收藏
页码:3699 / 3710
页数:12
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