A novel quasi-resonant soft-switching Z-source inverter

Yuan Zhu*, Minjie Chen, Xutao Lee, Yoshihara Tsutomu

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    17 Citations (Scopus)


    This paper proposes a novel quasi-resonant soft-switching Z-source inverter. On the basis of the Z-source inverter topology, the proposed inverter inherits the features of high voltage boost ability and circuit simplicity. A quasi-resonant network with only one auxiliary switch is employed to achieve the soft-switching scheme. All switches in the inverter bridge are turned on and off under zero-voltage switching condition. The simulation results are given to illustrate the soft-switching characteristics, which verify the theoretical analysis. Working at the switching frequency of 40kHz, the overall efficiency of 92% at full load which is 9.5%'s improvement, confirms the proposal.

    Original languageEnglish
    Title of host publicationPECon 2012 - 2012 IEEE International Conference on Power and Energy
    Number of pages6
    Publication statusPublished - 2012
    Event2012 IEEE International Conference on Power and Energy, PECon 2012 - Kota Kinabalu
    Duration: 2012 Dec 22012 Dec 5


    Other2012 IEEE International Conference on Power and Energy, PECon 2012
    CityKota Kinabalu


    • efficiency
    • quasi-resonant network
    • Z-source inverter
    • zero-voltage-switching

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Fuel Technology


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