Implementation of a Novel Multilevel Inverter Topology With Minimal Components—An Experimental Study

IF 1.9 Q3 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE IEEE Canadian Journal of Electrical and Computer Engineering Pub Date : 2024-01-08 DOI:10.1109/ICJECE.2023.3340326

Vijay Sirohi;Tejinder Singh Saggu;Jagdish Kumar;Bob Gill

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Abstract

Voltage source inverters are currently gaining popularity in a variety of power system applications, including renewable energy, HVdc, and microgrid. Among all the renewable energy applications, multilevel inverters (MLIs) are the most popular converters for high- and medium-power industries. This article reviews and compares many of the recently developed topologies for renewable energy integration with energy storage systems (ESSs). In addition, a new design of a seven-level inverter is proposed. It utilizes only six power electronic switches in its design of which four have unidirectional voltage-blocking capability and two have bidirectional voltage-blocking capability. Various simulation results of the proposed topology along with the total harmonic distortion (THD) contents of voltage and current are presented in detail under different loading conditions. Afterward, a new factor of comparison is proposed in which component ratings are also considered. Finally, a hardware prototype is built to check the authenticity of the proposed design, and satisfactory results are presented.

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使用最少组件实现新型多电平逆变器拓扑结构--实验研究

电压源逆变器目前在可再生能源、高压直流和微电网等各种电力系统应用中越来越受欢迎。在所有可再生能源应用中，多电平逆变器（MLIs）是高、中功率行业中最受欢迎的转换器。本文回顾并比较了最近开发的许多用于可再生能源与储能系统（ESS）集成的拓扑结构。此外，还提出了一种新的七电平逆变器设计。它在设计中仅使用了六个电力电子开关，其中四个具有单向电压闭锁能力，两个具有双向电压闭锁能力。在不同的负载条件下，详细介绍了所提拓扑结构的各种仿真结果以及电压和电流的总谐波失真（THD）含量。随后，提出了一种新的比较系数，其中也考虑了元件的额定值。最后，还制作了一个硬件原型来检查所提设计的真实性，并给出了令人满意的结果。

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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