A Novel Front-End Single-Stage Bridgeless Boost Converter for Grid Integration of Multisource DC-Microgrid Applications

Mahmoud M. Amin, Ahmed S. Soliman, Fayez F.M. El-Sousy, Osama A. Mohammed

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

15 Scopus citations

Abstract

The use of high frequency power converters to enhance power density and energy efficiency has become widely used in grid-connected hybrid DC microgrids. This paper presents a new modularized high frequency DC-link integration methodology that connects multisource renewable energy sources involves battery energy storage system (BESS) to the AC-grid. A grid-tie-inverter with a line inductor is introduced to control the active-reactive power flow. To minimize the converter physical size with improved system efficiency, a high frequency-based front-end multisource bridgeless boost (MBB) architecture is proposed here. A direct-mount decoupling snubber capacitor and a soft switching are used to reduce the switching losses resulted from the high-frequency operation. The performance of the proposed system is investigated. A direct digital approach is used to design the system controller in Matlab/Simulink R2022a environment. To validate the system performance, a 10 kW multi-source grid-connected experimental setup with dSPACE-1104 controller is constructed, tested, and compared with other conventional topologies. The test results verify the proposed topology effectiveness for hybrid grid-connected renewable energy resources integration.

Original languageEnglish
Title of host publication2022 IEEE Industry Applications Society Annual Meeting, IAS 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665478151
DOIs
StatePublished - 2022
Event2022 IEEE Industry Applications Society Annual Meeting, IAS 2022 - Detroit, United States
Duration: 9 Oct 202214 Oct 2022

Publication series

NameConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
Volume2022-October
ISSN (Print)0197-2618

Conference

Conference2022 IEEE Industry Applications Society Annual Meeting, IAS 2022
Country/TerritoryUnited States
CityDetroit
Period9/10/2214/10/22

Keywords

  • DC microgrid
  • digital control
  • hybrid renewable systems
  • multi-source boost converter
  • voltage source inverter

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