A multilevel inverter based on cascade connection of submultilevel units with reduced switch count

被引：23

作者：

Sedaghati, Farzad ^{[1
]}

Majareh, Seyed Hadi Latifi ^{[1
]}

机构：

[1] Univ Mohaghegh Ardabili, Fac Engn, Ardabili 5619911367, Iran

来源：

INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS | 2019年 / 47卷 / 07期

关键词：

cascade connection; inverter; multilevel; submultilevel; SERIES CONNECTION; MINIMUM NUMBER; REDUCTION; CAPACITOR; TOPOLOGY;

D O I：

10.1002/cta.2638

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：

In this paper, a multilevel inverter based on cascade connection of new submultilevel inverters is presented. The suggested submultilevel inverter is constructed using series connection of basic switching units. The proposed multilevel inverter uses fewer power switches in comparison with some similar topologies which results in reduction of switch gate drivers and also converter size and cost. The proposed multilevel inverter can be implemented in both symmetric and asymmetric configurations. The multilevel inverter configuration and operation principle are described in detail, and then, design methods of symmetric and asymmetric configurations are given. Determination of the optimal number of basic units and cascaded submultilevel inverters regarding criteria such as number of switches and total blocking voltage (TBV) of switches is studied. Power losses of the proposed multilevel inverter are calculated, and then, its symmetric and asymmetric configurations are compared with each other and also with similar cascaded multilevel inverters in various items. The validity of the suggested cascaded multilevel inverter is verified using both computer simulations and laboratory prototype implementation.

引用

页码：1152 / 1172

页数：21

共 23 条

[1] A new single-phase multilevel converter topology with reduced power electronic devices, voltage rating on switches, and power losses [J].