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A switched-capacitor based multilevel inverter with reduced circuit components and voltage boosting capability
International Transactions on Electrical Energy Systems ( IF 2.3 ) Pub Date : 2021-07-04 , DOI: 10.1002/2050-7038.12990
Yi Hu 1 , Roya Naderi 2 , Yahya Naderi 3
Affiliation  

In this paper a novel topology of switched capacitor based multilevel inverters is proposed. In this topology, to increase the output voltage levels and to add the voltage boosting capability, several switched capacitor units are cascaded in series. Having voltage boosting capability and generating maximum number of output voltage levels using minimum number of circuit components, is a merit for this topology. To highlight the attributes of the proposed topology, it is compared with other recently proposed multilevel inverters on number of circuit components such as power electronic switches, diodes and capacitors, voltage boosting capability, total standing voltage, cost and efficiency. The comparison results verify the superiority of the proposed topology over other proposed topologies on number of circuit components, and number of output voltage levels. It is also clear that, this topology has lower voltage stress on power electronic switches, which makes it an appropriate solution for industrial applications. Finally, to show the capabilities of the proposed topology, and to verify the accurate operation of the topology, circuit analysis as well as the experimental results are provided.

中文翻译:

一种基于开关电容的多电平逆变器,具有减少的电路元件和升压能力

在本文中,提出了一种基于开关电容器的多电平逆变器的新型拓扑结构。在此拓扑中,为了提高输出电压电平并增加升压能力,多个开关电容器单元串联。具有升压能力并使用最少数量的电路元件产生最多数量的输出电压电平是这种拓扑的优点。为了突出所提出的拓扑的属性,将其与其他最近提出的多电平逆变器在电力电子开关、二极管和电容器等电路组件的数量、升压能力、总常压、成本和效率方面进行了比较。比较结果验证了所提出的拓扑在电路元件数量上优于其他提出的拓扑,和输出电压电平的数量。同样清楚的是,这种拓扑对电力电子开关具有较低的电压应力,这使其成为工业应用的合适解决方案。最后,为了展示所提出的拓扑的能力,并验证拓扑的准确操作,提供了电路分析以及实验结果。
更新日期:2021-08-07
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