A Redundancy-based scheme for balancing DC-link voltages in cascaded H-bridge rectifiers

被引:15
作者
Keshavarzian, Ali [1 ]
Iman-Eini, Hossein [1 ]
机构
[1] Univ Tehran, Coll Engn, Sch Elect & Comp Engn, Tehran, Iran
关键词
MULTILEVEL ACTIVE RECTIFIER; CONVERTER; COMPENSATION; TOPOLOGIES; INVERTERS;
D O I
10.1049/iet-pel.2012.0533
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 voltage balancing algorithm is introduced for cascaded H-bridge rectifiers. This kind of converter is made of a series connection of H-bridge cells with separate dc-links. The proposed balancing algorithm will regulate the voltage of all dc-links to the desired reference value, even if the attached loads are very different. The input current is also programmed to be sinusoidal and has low distortion, while the switching frequency is kept low at 1 kHz. In addition, the input power factor can be controlled. The simulation and experimental results are presented to confirm the validity of the proposed algorithm.
引用
收藏
页码:235 / 243
页数:9
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