Topologies of Active-Switched Quasi-Z-source Inverters with High-Boost Capability

Anh-Vu Ho; Tae-Won Chun

Topologies of Active-Switched Quasi-Z-source Inverters with High-Boost Capability

Anh-Vu Ho

Tae-Won Chun

Vol. 16, No. 5, pp. 1716-1724, Sep. 2016

10.6113/JPE.2016.16.5.1716

Active switch

Quasi-Z-source inverters

Switched inductor

Voltage boost capability

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Abstract

This paper proposes both an active-switched quasi-Z-source inverter (AS-qZSI) and an extended active-switched qZSI (EAS-qZSI), which are based on the classic qZSI. The proposed AS-qZSI adds only one active switch and one diode to the classic qZSI for increasing the voltage boost capability. Compared with other topologies based on the switched-inductor/capacitor qZSI, the proposed AS-qZSI requires fewer passive components in the impedance network under the same boost capability. Additionally, the proposed EAS-qZSI is designed by adding one inductor and three diodes to the AS-qZSI, which offers enhanced boost capability and lower voltage stress across the switches. The performances of the two proposed topologies are verified by simulation and experimental results obtained from a prototype with a 32-bit DSP built in a laboratory.

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Cite this article

[IEEE Style]

A. Ho and T. Chun, "Topologies of Active-Switched Quasi-Z-source Inverters with High-Boost Capability," Journal of Power Electronics, vol. 16, no. 5, pp. 1716-1724, 2016. DOI: 10.6113/JPE.2016.16.5.1716.

[ACM Style]

Anh-Vu Ho and Tae-Won Chun. 2016. Topologies of Active-Switched Quasi-Z-source Inverters with High-Boost Capability. Journal of Power Electronics, 16, 5, (2016), 1716-1724. DOI: 10.6113/JPE.2016.16.5.1716.