Three-Phase Four-Wire Inverters Based on Cascaded Three-Phase Converters with Four and Three Legs

被引：0
作者：
Mello, Joao P. R. A. [1 ]
Jacobina, Cursino B. [2 ]
Correa, Mauricio B. R. [2 ]
机构：
[1] Fed Univ Campina Grande UFCG, Postgrad Program Elect Engn PPgEE COPELE, BR-58429900 Campina Grande, Paraiba, Brazil
[2] Fed Univ Campina Grande UFCG, Dept Elect Engn DEE, BR-58429900 Campina Grande, Paraiba, Brazil
来源：
2016 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2016年
关键词：
MULTILEVEL CONVERTERS;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper presents three-phase converter topologies for four-wire systems. The converters are series connected by three-phase transformers with accessible neutral. They possess a common dc-link, which is the power supply of the system, and two or more converters, where one of them is connected directly to the ac system, and the others cascaded through three-phase transformers. The three-phase transformers have turn ratios that are calculated in order to maximize the number of levels produced by the inverters. The Level-Shifted Pulse Width Modulation technique is developed for two and three cascaded converters, and a control system is used to set the electrical grid currents on desired values. Simulation and experimental results are exposed for configurations with two cascaded converters, each one with either three or four legs.
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页数：8
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