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A Single-phase Hybrid Multi-level Inverter

机译：单相混合式多电平逆变器

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摘要

This article presents a single-phase 17-level hybrid multilevel inverter. The cascaded unit is made up of two five-level inverter configurations: a diode-clamped inverter and an inverter constituted of a main inverting H-bridge leg and level-clamping half-bridge circuit. The asymmetrically cascaded inverters have a separate DC input ratio of 1:3 that affects reduction in the power circuit component count in the single-phase multi-level inverter system. The operational principles, modulation schemes, and switching functions have been analyzed in detail. Fast fourier transform analysis of the output voltage waveform was carried out, and a low total harmonic distortion value of 7.61% was obtained. The validity of the proposed hybrid multi-level inverter is verified through simulation and experimental results.
机译：本文介绍了一种单相17级混合多电平逆变器。级联单元由两个五电平逆变器配置组成：二极管钳位的逆变器和由主逆变H桥脚和电平钳位半桥电路组成的逆变器。非对称级联的逆变器具有单独的DC输入比率1：3，这会影响单相多电平逆变器系统中电源电路组件数量的减少。详细分析了工作原理，调制方案和切换功能。对输出电压波形进行了快速傅立叶变换分析，获得了较低的总谐波失真值7.61％。通过仿真和实验结果验证了所提出的混合多电平逆变器的有效性。

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