Capacitor‑assisted active‑switched quasi‑Z‑source inverters with high voltage gain

Anh-Tuan Huynh; Anh-Vu Ho; Tae-Won Chun

Capacitor‑assisted active‑switched quasi‑Z‑source inverters with high voltage gain

Anh-Tuan Huynh

Anh-Vu Ho

Tae-Won Chun

Vol. 22, No. 12, pp. 2016-2024, Dec. 2022

10.1007/s43236-022-00536-5

Active switched impedance network

AC voltage gain

Modulation technique

Quasi-Z-source inverter (qZSI)

Abstract

This paper presents a novel topology called the capacitor-assisted active-switched quasi Z-source inverter (CA/AS-qZSI). The proposed CA/AS-qZSI topology has a high ac voltage gain and low voltage and current stresses on the diodes and extra switch in the Z-network. The design guide of the passive elements used in the proposed topology and a comparative study of the proposed CA/AS-qZSI and four other topologies with an active-switched impedance network are addressed. A new pulse-width modulation (PWM) technique using a sawtooth carrier signal is also suggested to reduce the switching losses of the diodes and switches. Compared with the traditional simple boost control method, the efficiency of CA/AS-qZSI using the new PWM technique is improved by 4–4.6%. The experimental results utilizing a prototype made in the laboratory demonstrate the performance of the proposed CA/AS-qZSI and PWM technique.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

A. Huynh, A. Ho, T. Chun, "Capacitor‑assisted active‑switched quasi‑Z‑source inverters with high voltage gain," Journal of Power Electronics, vol. 22, no. 12, pp. 2016-2024, 2022. DOI: 10.1007/s43236-022-00536-5.

[ACM Style]

Anh-Tuan Huynh, Anh-Vu Ho, and Tae-Won Chun. 2022. Capacitor‑assisted active‑switched quasi‑Z‑source inverters with high voltage gain. Journal of Power Electronics, 22, 12, (2022), 2016-2024. DOI: 10.1007/s43236-022-00536-5.