Analysis of circulating current in two parallel-connected AC/DC/AC Converter

Ramkrishan Maheshwari*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Parallel-connected ac/dc/ac converters are used to increase power capability and have redundancy in high power applications. However, due to parallel connection, there exists a circulating current which does not contribute to the ac side load or source currents and causes extra losses. This paper analyses the circulating current for two parallel-connected ac/dc/ac converter system. The ac/dc/ac converter system may have separate dc-links for each ac/dc/ac converter or a common dc-link, In both cases, the circulating currents are analyzed in this paper. The system with and without common dc-links are simulated, and the comparison of the circulating current and total ac side source and load currents in both cases are presented.

Original languageEnglish
Title of host publication2019 21st European Conference on Power Electronics and Applications, EPE 2019 ECCE Europe
PublisherIEEE
Publication dateSep 2019
PagesP.1-P.7
ISBN (Print)978-1-7281-2361-5
ISBN (Electronic)978-9-0758-1531-3
DOIs
Publication statusPublished - Sep 2019
Externally publishedYes
Event21st European Conference on Power Electronics and Applications, EPE 2019 ECCE Europe - Genova, Italy
Duration: 3. Sep 20195. Sep 2019

Conference

Conference21st European Conference on Power Electronics and Applications, EPE 2019 ECCE Europe
CountryItaly
CityGenova
Period03/09/201905/09/2019

Keywords

  • AC/AC converter
  • Pulse-width modulation (PWM)
  • Voltage-source inverters (VSI)

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  • Cite this

    Maheshwari, R. (2019). Analysis of circulating current in two parallel-connected AC/DC/AC Converter. In 2019 21st European Conference on Power Electronics and Applications, EPE 2019 ECCE Europe (pp. P.1-P.7). IEEE. https://doi.org/10.23919/EPE.2019.8915131