Alaas Zuhair
Department of Electrical and Electronics Engineering, Faculty of Engineering and Computer Science, Jazan University, Jizan, 45142, Saudi Arabia.
Sci Rep. 2025 Feb 27;15(1):7031. doi: 10.1038/s41598-025-87302-2.
The ANPC-based multilevel inverters have been quite famous for over a decade due to their lower devices and high efficiency. However, as the number of levels increases, the ANPC topologies become unsuitable due to the increase in the component count and capacitor voltage balancing issue. This article proposes a novel ANPC nine-level topology with reduced components and voltage stress on the components. The proposed circuit has eight switches and one bidirectional switch, with two switched capacitors. The proposed topology has the voltage boosting ability with a maximum voltage gain of two times that of the conventional ANPC topologies. Further, the proposed topology does not need any voltage-balancing algorithm to maintain the SC voltages. The proposed topology is validated in hardware, and results are presented. The maximum voltage is 200 V, and the maximum current is 2.4 A with a maximum efficiency of 97% 100 W.
基于有源中性点箝位（ANPC）的多电平逆变器由于其器件数量少和效率高，在过去十多年里一直颇负盛名。然而，随着电平数的增加，由于元件数量的增加和电容器电压平衡问题，ANPC拓扑变得不合适。本文提出了一种新型的ANPC九电平拓扑，其元件数量减少且元件上的电压应力降低。所提出的电路有八个开关和一个双向开关，以及两个开关电容。所提出的拓扑具有升压能力，最大电压增益是传统ANPC拓扑的两倍。此外，所提出的拓扑不需要任何电压平衡算法来维持开关电容的电压。所提出的拓扑在硬件上得到了验证，并给出了结果。最大电压为200V，最大电流为2.4A，100W时的最大效率为97%。
