A Simple Control Technique for Distributed Generations in Grid-Connected and Islanded Modes

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

23 Citations (Scopus)

Abstract

This paper presents a control technique for the seamless transfer of AC microgrid between grid-connected and islanded modes of operation. When a fault occurs in the utility grid, microgrid should be disconnected from the utility grid to protect its components and continuously supply the local loads in the microgrid. In the opposite case, if the utility grid is in normal condition, the microgrid should be connected to the utility grid. To fulfilling these control objectives, the proposed control technique handles two transfer modes: grid-connected to islanded mode and vice versa. Each distributed generation (DG) unit is controlled by the voltage control technique in islanded mode whereas the DG is controlled by feed-forward based control technique in grid-connected mode so as to ensure the seamless transition. Furthermore, parallel converters have been controlled by droop control technique in order to deliver desired power to the local loads in the islanded mode. The general operation principle is analyzed and demonstrated by means of simulation.

Original languageEnglish
Title of host publicationProceedings - 2018 IEEE 27th International Symposium on Industrial Electronics, ISIE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1237-1242
Number of pages6
ISBN (Print)9781538637050
DOIs
Publication statusPublished - 10 Aug 2018
Externally publishedYes
Event27th IEEE International Symposium on Industrial Electronics, ISIE 2018 - Cairns, Australia
Duration: 13 Jun 201815 Jun 2018

Publication series

NameIEEE International Symposium on Industrial Electronics
Volume2018-June

Conference

Conference27th IEEE International Symposium on Industrial Electronics, ISIE 2018
Country/TerritoryAustralia
CityCairns
Period13/06/1815/06/18

Keywords

  • Microgrid
  • distributed generation
  • grid-connected and islanded modes
  • power converters
  • seamless transfer

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