Novel Virtual-Ground Single-Phase Buck-Boost Inverter

Fazal Akbar, Mohamed Elgenedy, Ahmad Elkhateb, Honnyong Cha, Jung Wook Park

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

1 Scopus citations

Abstract

Due to variations in irradiance, temperature, and shading effect, the terminal voltages of photovoltaic panels are variable and therefore buck-boost inverters are required. This article presents a new buck-boost voltage-source inverter (VSI) topology. The proposed VSI is transformerless and has virtual-ground feature, which in terms mitigate the common-mode voltage issue of transformerless inverters and thus resulting in low leakage current. Detailed circuit analysis is provided based on the proposed modulation strategy in which four switches operate at line frequency and hence high power conversion efficiency can be realized. Furthermore, experimental results are provided with 500 W prototype in support of theoretical analysis and effectiveness of the proposed inverter.

Original languageEnglish
Title of host publicationICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia
Subtitle of host publicationGreen World with Power Electronics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages544-548
Number of pages5
ISBN (Electronic)9788957083505
DOIs
StatePublished - 2023
Event11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia - Jeju, Korea, Republic of
Duration: 22 May 202325 May 2023

Publication series

NameICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics

Conference

Conference11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia
Country/TerritoryKorea, Republic of
CityJeju
Period22/05/2325/05/23

Keywords

  • Buck-boost function
  • common-mode voltage
  • transformerless inverter
  • virtual-ground

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