Comparison of Level Shifted SPWM Methods for Three Phase, Seven Level Reduced Switch Based Multilevel Inverter

2023 Fifth International Conference on Electrical, Computer and Communication Technologies (ICECCT) Pub Date : 2023-02-22 DOI:10.1109/ICECCT56650.2023.10179769

Rishi Raj Jaiswal, R. Kumar, Majhrul Israr, P. Samuel

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Abstract

Recent developments have made multilevel inverters a crucial alternative in implementations requiring high power and high voltage. Various applications, including electric vehicles, renewable energy conversion systems, etc., utilize a variety of multilevel inverter topologies. Primary objective of recent innovative reduced switch-based multilevel inverter topologies is to use fewer components than classical topologies. This research examines various level shifted multi- carrier SPWM (Sinusoidal Pulse Width Modulation) methods for a three-phase, seven-level, reduced switch-based MLI (Multilevel Inverter) topology, including in-phase, phase opposition, and alternate-phase opposition disposition. These methods are suggested by several authors in order to guarantee effective voltage utilization and an improved harmonic spectrum. The THD (Total Harmonic Distortion) of outputvoltage and current has been given special attention. MATLAB/Simulink 2016 platform was used for simulation and analysis.

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基于三相七电平降阶开关的多电平逆变器移电平SPWM方法比较

最近的发展已经使多电平逆变器在需要高功率和高电压的实现中成为一个重要的替代方案。各种应用，包括电动汽车，可再生能源转换系统等，利用各种多电平逆变器拓扑。最近创新的基于简化开关的多电平逆变器拓扑的主要目标是使用比经典拓扑更少的组件。本研究探讨了用于三相、七电平、减少开关的MLI(多电平逆变器)拓扑的各种电平移位多载波SPWM(正弦脉宽调制)方法，包括同相、相位对抗和交替相位对抗配置。为了保证有效的电压利用率和改善谐波谱，一些作者提出了这些方法。输出电压和电流的总谐波失真(THD)得到了特别的关注。采用MATLAB/Simulink 2016平台进行仿真分析。

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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2023 Fifth International Conference on Electrical, Computer and Communication Technologies (ICECCT)

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