Single-phase cascaded multilevel inverter topology for distributed DC sources

2017 IEEE 8th Annual Ubiquitous Computing, Electronics and Mobile Communication Conference (UEMCON) Pub Date : 2017-10-01 DOI:10.1109/UEMCON.2017.8248980

B. Ahmed, K. Aganah, M. Ndoye, Md Arifin Arif, Cristopher Luciano, G. Murphy

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引用次数: 12

Abstract

A new single-phase cascaded multilevel inverter topology using an H-bridge inverter is proposed to reduce the number of active components and improve power quality. The topology is comprised of two or more cascaded H-bridges to increase the number of voltage levels and power handling capability. The basic unit of the proposed inverter is comprised of a voltage-level generator (VLG) connected to the input of the classical H-bridge. The main advantage of this setup is a significant reduction in the number of switches and voltage sources required to generate the desired number of voltage levels. As a result, the output power quality, cost and size are significantly improved. To verify the benefits of this topology, in a more complete way, both the symmetric and asymmetric configurations are investigated. MATLAB/Simulink models for symmetric 9-level and asymmetric 31-level cascaded multilevel inverter configurations are used to validate the performance of the proposed topology, and satisfactory results are reported.

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分布式直流电源单相级联多电平逆变器拓扑

提出了一种基于h桥逆变器的单相级联多电平逆变器拓扑结构，以减少有源器件数量，提高电能质量。该拓扑结构由两个或多个级联的h桥组成，以增加电压电平的数量和功率处理能力。该逆变器的基本单元由一个电压级发电机(VLG)组成，该发电机连接到经典h桥的输入端。这种设置的主要优点是大大减少了产生所需数量的电压电平所需的开关和电压源的数量。因此，输出功率质量、成本和尺寸都得到了显著改善。为了更完整地验证这种拓扑结构的优点，对对称和非对称配置进行了研究。利用MATLAB/Simulink模型对对称9电平和非对称31电平级联多电平逆变器配置进行了性能验证，得到了满意的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2017 IEEE 8th Annual Ubiquitous Computing, Electronics and Mobile Communication Conference (UEMCON)

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