A single-phase seven-level ANPC inverter with hybrid modulation for enhanced efficiency and harmonic performance.

IF 3.9 2区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Scientific Reports Pub Date : 2025-03-20 DOI:10.1038/s41598-025-93660-8

Bisma Saif, Adil Sarwar, Mohammad Zaid, Shafiq Ahmad, Hwa-Dong Liu, Wei-Jen Chen

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Abstract

Switched-capacitor (SC) multilevel inverters (MLIs) are widely used in a variety of applications due to their ability to boost voltage and balance capacitor voltage. High efficiency inverters with high boosting leads to inverters with higher component count and lower efficiency. This article proposes a seven-level active neutral point clamped-based SC inverter with a boosting of 1.5. The proposed topology, which includes six switches, and six diodes, produces a seven-level output voltage with an efficiency of 98.4%, and voltage and current THD% of 22.27% and 10.67%. This article also suggests integrating Level Shifted (LS) PWM with Phase Shifted (PS) PWM. The amalgamation enhances the converter's overall efficiency by lowering switching losses by combining the benefits of both switching technologies. The reliability of the proposed inverter has also been analysed. The simulation as well as hardware results have been presented to validate the performance of the proposed inverter.

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采用混合调制的单相七电平ANPC逆变器，提高了效率和谐波性能。

开关电容器（SC）多电平逆变器（mli）由于其升压和平衡电容器电压的能力而广泛应用于各种应用。高升压的高效率逆变器导致逆变器元件数高，效率低。本文提出了一种升压为1.5的七电平有源中性点箝位型SC逆变器。所提出的拓扑结构包括6个开关和6个二极管，可产生7电平输出电压，效率为98.4%，电压和电流THD%分别为22.27%和10.67%。本文还建议将电平移（LS） PWM与相移（PS） PWM集成。合并通过结合两种开关技术的优点来降低开关损耗，从而提高变换器的整体效率。并对逆变器的可靠性进行了分析。仿真和硬件结果验证了该逆变器的性能。

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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来源期刊

Scientific Reports Natural Science Disciplines-

CiteScore

7.50

自引率

4.30%

发文量

19567

审稿时长

3.9 months

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