Extended Boost Single-phase qZ-Source Inverter for Photovoltaic Systems

Hyun-Hak Shin; Honnyong Cha; Hongjoon Kim; Heung-Geun Kim

Extended Boost Single-phase qZ-Source Inverter for Photovoltaic Systems

Vol. 14, No. 5, pp. 918-925, Sep. 2014

10.6113/JPE.2014.14.5.918

Buck-boost

Full-bridge inverter

Semi-qZ-source inverter

Single-phase qZ-source inverter

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Abstract

This study presents an extended boost single-phase qZ-source DC?AC inverter for a single-phase photovoltaic system. Unlikethe previously proposed single-phase qZ-source and semi-qZ-source inverters that achieve the same output voltage as that of thetraditional voltage-fed full-bridge inverter, the proposed inverter can obtain higher output than input voltage. The proposedinverter also shares a common ground between DC input voltage and AC output voltage. Thus, possible ground leakage currentproblem in non-isolated grid-tied inverters can be eliminated with the proposed inverter. A 120 W prototype inverter is built andtested to verify the performance of the proposed inverter.

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Cite this article

[IEEE Style]

H. Shin, H. Cha, H. Kim, H. Kim, "Extended Boost Single-phase qZ-Source Inverter for Photovoltaic Systems," Journal of Power Electronics, vol. 14, no. 5, pp. 918-925, 2014. DOI: 10.6113/JPE.2014.14.5.918.

[ACM Style]

Hyun-Hak Shin, Honnyong Cha, Hongjoon Kim, and Heung-Geun Kim. 2014. Extended Boost Single-phase qZ-Source Inverter for Photovoltaic Systems. Journal of Power Electronics, 14, 5, (2014), 918-925. DOI: 10.6113/JPE.2014.14.5.918.