Capacitor Voltage Balancing Techniques of Single-Phase Cascaded H-Bridge Inverters

被引：0
|
作者：
Monteiro, Amanda P. [1 ]
Jacobina, Cursino B. [2 ]
Matias, Rafael R. [3 ]
Mello, Joao P. R. A. [1 ]
de Freitas, Nayara B. [1 ]
机构：
[1] COPELE, PPgEE, Postgrad Program Elect Engn, Murcia, Spain
[2] Fed Univ Campina Grande UFCG, DEE, BR-58429900 Campina Grande, Paraiba, Brazil
[3] Fed Univ Piaui UFPI, DEE, BR-64049550 Teresina, Piaui, Brazil
来源：
2018 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2018年
关键词：
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 an analysis of single-phase Cascaded H-Bridge inverters composed of two and three cells connected in series. The dc-link can be a dc-source or a floating capacitor. Two level shifted pulse width modulation (LSPWM) techniques are given to regulate the capacitor voltage: employing a degree of freedom or redundancies. In this way, both topologies are analyzed with different dc-link ratios in terms of power distribution, for several modulation indexes and load power factors. In addition, a modified LSPWM model is proposed for the nonredundant three-stage 27 level inverter, so that control actions are imposed to smoothly regulate the capacitor voltage and thus avoid spikes and excessive ripple in the output voltage. Finally, simulation and experimental results are provided to validate the performances of the systems.
引用
收藏
页码：2149 / 2156
页数：8
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