A novel nine-level inverter, applicable in air plane ground power unit

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-06-25 DOI:10.1049/pel2.12712

Reza Ebrahimi, Hossein Madadi Kojabadi

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Abstract

In this study, a novel nine-level inverter using one voltage source, 10 unidirectional and one bidirectional power switches, and two capacitors has been proposed to utilize in ground power units (GPUs). Selective harmonic elimination method has been applied to reduce the output voltage's THD to less than 3% with 115/200 V and 400 Hz. The proposed converter utilized a lower number of devices to output a nine-level staircase in comparison to existing converters. Also, the proposed converter uses inherent self-voltage balancing for capacitors' voltage. So, the control algorithm gets simpler. In this study, the topology analysis, modulation algorithm, capacitor calculation, loss, efficiency, and performance analysis of the proposed topology have been presented. The proposed circuit has been compared to recently published papers in terms of efficiency, switch, capacitor, diode, and source numbers. The theoretical and experimental performance of the topology has been verified by simulation on PSCAD and PSIM software and 350 W experimental setup.

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适用于飞机地面动力装置的新型九级逆变器

本研究提出了一种新型九电平逆变器，使用一个电压源、10 个单向和 1 个双向功率开关以及两个电容器，可用于地面电源装置（GPU）。采用选择性谐波消除方法将 115/200 V 和 400 Hz 输出电压的总谐波失真降至 3% 以下。与现有的转换器相比，拟议的转换器使用了更少的设备来输出九级阶梯。此外，建议的转换器还使用了电容器电压的固有自电压平衡。因此，控制算法变得更加简单。在本研究中，介绍了拟议拓扑结构的拓扑分析、调制算法、电容器计算、损耗、效率和性能分析。在效率、开关、电容器、二极管和源数量方面，将所提出的电路与最近发表的论文进行了比较。拓扑结构的理论和实验性能已通过 PSCAD 和 PSIM 软件以及 350 W 的实验装置进行了仿真验证。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.