Abstract—A hybrid switched capacitor multi-level inverter topology is proposed in this paper. The topology has a basic unit and an extendable “n” module. The number of levels synthesized and the voltage gain delivered is based on number of such “n” modules connected in series. For “k” number of “n” modules, 4k + 9 levels can be obtained in the terminal voltage with a voltage boost of 1:(k + 2). Also, the topology has self-balancing ability which is mathematically validated. A 13-level prototype of hybrid switched capacitor multi-level inverter (HSC-MLI) is developed and its performance is analyzed in simulation and experimental environments. The HSC-MLI is compared with recent switched capacitor multi-level inverter topologies in the aspects like number of capacitors, number of diodes, number of drivers, number of levels synthesized and voltage gain and the results are presented. The simulations are done in MATLAB environment and the experimental prototype is fabricated using IGBTs 1HW15N120E1.

中文翻译：

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一种具有高电压增益和自电压平衡能力的混合开关电容器多电平逆变器

摘要——本文提出了一种混合开关电容器多电平逆变器拓扑结构。该拓扑具有一个基本单元和一个可扩展的“n”模块。合成的电平数和提供的电压增益基于串联连接的此类“n”模块的数量。对于“k”个“n”模块，端电压可达到4k+9级，升压1:(k+2)。此外，拓扑具有自平衡能力，这在数学上得到了验证。开发了混合开关电容器多电平逆变器 (HSC-MLI) 的 13 级原型，并在仿真和实验环境中分析了其性能。HSC-MLI 与最近的开关电容器多电平逆变器拓扑在电容器数量、二极管数量、驱动器数量、显示了合成的级别数和电压增益以及结果。仿真在 MATLAB 环境中完成，实验原型使用 IGBT 1HW15N120E1 制造。