Minimized Quasi-Z source network for single-phase inverter

Baoming Ge, Haitham Abu-Rub, Yushan Liu, Robert S. Balog

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Citations (Scopus)

Abstract

The single-phase quasi-Z source inverter topology (qZSI) is attracting attentions for the single-phase grid-tie photovoltaic applications. However, due to the inherent second harmonic power flow in a single phase system, a large qZS network is required to reduce the second harmonic components of current and voltage at the dc port. Minimization of this qZS network remains an open research topic. This paper proposes a design method for the single-phase qZSI topology to minimize the qZS capacitance and inductance. A second harmonic power flow model for the single-phase qZSI is derived and ripple power is analyzed for the minimization solution of the qZS network. A current ripple damping control is proposed to ensure suppression of the second harmonic power flow in the inductor. The proposed design and conventional design methods are compared through design examples, simulation comparison, and experimental verification. These results verify the proposed minimization design method.

Original languageEnglish
Title of host publicationAPEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages806-811
Number of pages6
EditionMay
ISBN (Electronic)9781479967353
DOIs
Publication statusPublished - 8 May 2015
Externally publishedYes
Event30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States
Duration: 15 Mar 201519 Mar 2015

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
NumberMay
Volume2015-May

Conference

Conference30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
Country/TerritoryUnited States
CityCharlotte
Period15/03/1519/03/15

Keywords

  • power flow analysis
  • quasi-Z source inverter
  • second harmonic pulsating power
  • single-phase system

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