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

Author

Yuan Zhu ; Minjie Chen ; Xutao Lee ; Tsutomu, Y.

Author_Institution

Grad. Sch. of Inf., Waseda Univ., Kitakyushu, Japan

fYear

2012

fDate

2-5 Dec. 2012

Firstpage

292

Lastpage

297

Abstract

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.

Keywords

resonant invertors; zero voltage switching; Z-source inverter topology; auxiliary switch; circuit simplicity; efficiency 92 percent; frequency 40 kHz; high-voltage boost ability; inverter bridge; quasiresonant soft-switching Z-source inverter; soft-switching scheme; theoretical analysis; zero-voltage switching condition; Bridge circuits; Equivalent circuits; Inverters; Simulation; Switches; Voltage control; Zero voltage switching; Z-source inverter; efficiency; quasi-resonant network; zero-voltage-switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy (PECon), 2012 IEEE International Conference on

Conference_Location

Kota Kinabalu

Print_ISBN

978-1-4673-5017-4

Type

conf

DOI

10.1109/PECon.2012.6450225

Filename

6450225