AC-microgrids versus DC-microgrids with distributed energy resources: A review

Jackson John Justo, Francis Mwasilu, Ju Lee, Jin Woo Jung

Research output: Contribution to journalReview article

519 Scopus citations

Abstract

This paper presents the latest comprehensive literature review of AC and DC microgrid (MG) systems in connection with distributed generation (DG) units using renewable energy sources (RESs), energy storage systems (ESS) and loads. A survey on the alternative DG units' configurations in the low voltage AC (LVAC) and DC (LVDC) distribution networks with several applications of microgrid systems in the viewpoint of the current and the future consumer equipments energy market is extensively discussed. Based on the economical, technical and environmental benefits of the renewable energy related DG units, a thorough comparison between the two types of microgrid systems is provided. The paper also investigates the feasibility, control and energy management strategies of the two microgrid systems relying on the most current research works. Finally, the generalized relay tripping currents are derived and the protection strategies in microgrid systems are addressed in detail. From this literature survey, it can be revealed that the AC and DC microgrid systems with multiconverter devices are intrinsically potential for the future energy systems to achieve reliability, efficiency and quality power supply.

Original languageEnglish
Pages (from-to)387-405
Number of pages19
JournalRenewable and Sustainable Energy Reviews
Volume24
DOIs
StatePublished - 2013 Apr 30

Keywords

  • AC microgrid
  • DC microgrid
  • Distributed generation (DG) units
  • Microgrid control
  • Microgrid protection
  • Renewable energy sources (RESs)

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