An Extended Switched-inductor Quasi-Z-source Inverter

作者:Deng Kai; Mei Fei; Mei Jun; Zheng Jianyong*; Fu Guangxu
来源:Journal of Electrical Engineering & Technology, 2014, 9(2): 541-549.
DOI:10.5370/JEET.2014.9.2.541

摘要

In this paper, an extended switched-inductor quasi-Z-source inverter (ESL-qZSI) with high boost voltage inversion ability is presented, which combines the SL-qZSI with the traditional boost converter, as well as improves the switched-inductor cell. Compared with the classic qZSI topologies, the proposed topology reduces the voltage stresses of capacitors, power devices and diodes for the same input and output voltage. Furthermore, the conversion efficiency is improved. The operation principle of the proposed topology is analyzed in details, which is followed by the comparison between the three topologies. In addition, the perfoirnance of the proposed topology is verified by simulations and experiments.