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首页> 外文期刊>Arabian Journal for Science and Engineering. Section A, Sciences >Novel Reduced Switch-Count Structure for Symmetric/Asymmetric Cascaded Multilevel Inverter
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Novel Reduced Switch-Count Structure for Symmetric/Asymmetric Cascaded Multilevel Inverter

机译：对称/不对称级联多级逆变器的新颖减少开关计数结构

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摘要

In this paper, a novel Cascaded H-Bridge (CHB)-based multilevel inverter for symmetric/asymmetric configurations is presented. The proposed MLI can be utilized in medium-voltage applications such as electrical machine drives as well as grid connection of renewable energy resources. The proposed structure uses fewer count of semiconductor devices at the same voltage level in comparison with classic and advanced structures. Cascaded connection of the proposed basic cells leads to reduce complexity and increase efficiency of the proposed structure. In order to investigate the capability and superiority of the proposed structure, a comprehensive comparison is conducted between this structure and the advanced ones in terms of efficiency, switch and gate driver count, and total blocking voltage (TBV). The fundamental frequency switching method is employed to generate proper switching pulses. The performance of the proposed multilevel inverter is investigated by simulating in MATLAB/Simulink environment. The experimental implementation for proposed 15-level symmetric and 33-level asymmetric structures validates the correctness of simulation results.
机译：本文提出了一种用于对称/不对称配置的新型级联H桥（CHB）的基于多级逆变器。所提出的MLI可用于中电压应用，例如电机驱动器以及可再生能源资源的网格连接。与经典和高级结构相比，所提出的结构使用与相同电压电平的半导体器件计数。所提出的基本细胞的级联连接导致拟议结构的复杂性和提高效率。为了研究所提出的结构的能力和优越性，在效率，开关和栅极驱动器计数和总阻断电压（TBV）方面，在该结构和先进的方面进行全面的比较。采用基本频率切换方法来产生适当的开关脉冲。通过在MATLAB / SIMULINK环境中模拟来研究所提出的多级逆变器的性能。提出的15级对称和33级不对称结构的实验实施验证了模拟结果的正确性。

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