The recent advancement in the application of the internet of things in the smart grid has led to an industrial revolution in the power industry. The Industry 4.0 revolution has already set in, allowing computers to interact for an efficient and intelligent approach in solving smart grid issues. multilevel inverters (MLIs) are an integral part of the smart grid system for integrating the distributed generation sources and storage energy systems into the smart grid. It attracted attention in industrial applications as they can handle high power and high voltage with an inherent feature of superior output voltage waveform quality. Moreover, its variant, the switched-capacitor MLI (SCMLI), has the added benefit of lesser DC supply requirement. In this paper, a switched-capacitor multilevel inverter topology has been proposed, which can operate in symmetric and asymmetric mode. The proposed SCMLI generate thirteen and thirty-one level output voltages for symmetric and asymmetric selection of DC voltage sources, respectively. The proposed SCMLI has a smaller number of switching devices for a given output voltage level as compared to other recently proposed topologies. A thorough comparison is presented with the recently proposed topologies on several parameters, including cost function. To validate the proposed topology, symmetric and asymmetric cases were simulated using Mthlab^® 2018a and the results were verified using an experimental hardware setup.

中文翻译：

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适用于储能和智能电网应用的新型开关电容器多电平逆变器拓扑

物联网在智能电网中的应用的最新进展导致了电力行业的工业革命。工业4.0革命已经开始，允许计算机交互以一种有效和智能的方式解决智能电网问题。多级逆变器（MLI）是智能电网系统不可或缺的一部分，用于将分布式发电资源和储能系统集成到智能电网中。由于它们可以处理高功率和高电压，并具有卓越的输出电压波形质量的固有特征，因此引起了工业应用的关注。此外，其变体，即开关电容器MLI（SCMLI），具有更少的直流电源需求的额外好处。本文提出了一种开关电容多电平逆变器拓扑，可以在对称和非对称模式下运行。提出的SCMLI分别产生13个和31个电平的输出电压，分别用于对称和不对称的DC电压源选择。与其他最近提出的拓扑相比，对于给定的输出电压电平，提出的SCMLI具有较少数量的开关器件。与最近提出的拓扑在几个参数（包括成本函数）上进行了全面比较。为了验证提出的拓扑，使用Mthlab模拟了对称和非对称情况 与其他最近提出的拓扑相比，对于给定的输出电压电平，提出的SCMLI具有较少数量的开关器件。与最近提出的拓扑在几个参数（包括成本函数）上进行了全面比较。为了验证提出的拓扑，使用Mthlab模拟了对称和非对称情况 与其他最近提出的拓扑相比，对于给定的输出电压电平，提出的SCMLI具有较少数量的开关器件。与最近提出的拓扑在几个参数（包括成本函数）上进行了全面比较。为了验证所提出的拓扑，使用Mthlab模拟了对称和非对称情况^®使用实验用的硬件设置2018A和结果进行了验证。