A bidirectional diode containing multilevel inverter topology with reduced switch count and driver,International Journal of Circuit Theory and Applications

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A bidirectional diode containing multilevel inverter topology with reduced switch count and driver
International Journal of Circuit Theory and Applications ( IF 1.8 ) Pub Date : 2020-06-30 , DOI: 10.1002/cta.2810
Majid Hosseinpour ₁ , Ali Seifi ₁ , Mohmad Mohsen Rahimian ₁

Affiliation

In this paper, a bidirectional diode containing multilevel inverter is introduced to reduce the number of switching elements especially in the case of a high number of output voltage levels. In comparison with classic and recently introduced symmetrical topologies, which are trying to reduce the switch count, this topology has a lower number of semiconductor switches in the same number of output voltage levels. This makes the proposed inverter to be a suitable choice for medium voltage applications like renewable energy applications as well as medium voltage electric drives. Moreover, it can be used in a cascaded configuration for high voltage levels. To depict the performance of the proposed structure, a comprehensive comparison is made between this topology and classic and recently proposed symmetric topologies in terms of switch and gate driver count, power losses, and cost. The performance of the proposed symmetrical 11‐level converter is analyzed and simulated in MATLAB/Simulink for both PWM and selective harmonic elimination switching methods. Not only the results are desirable but also the experimental results of laboratory prototype validate the simulation results.

中文翻译：

包含多级逆变器拓扑的双向二极管，具有减少的开关数量和驱动器

在本文中，引入了一种包含多电平逆变器的双向二极管，以减少开关元件的数量，尤其是在输出电压电平数量很高的情况下。与试图减少开关数量的经典和最近引入的对称拓扑相比，该拓扑在相同数量的输出电压电平下具有更少的半导体开关。这使得建议的逆变器成为中压应用（如可再生能源应用）以及中压电驱动器的合适选择。此外，它可以级联配置用于高电压电平。为了描述拟议结构的性能，在开关和栅极驱动器数量，功耗和成本方面，对该拓扑与经典和最近提出的对称拓扑进行了全面比较。在MATLAB / Simulink中针对PWM和选择性谐波消除开关方法对拟议的对称11级转换器的性能进行了分析和仿真。不仅结果令人满意，而且实验室原型的实验结果验证了模拟结果。

更新日期：2020-06-30

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