Nonlinear load sharing in low voltage microgrid using negative virtual harmonic impedance

Preetha Sreekumar, Vinod Khadkikar

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

9 Scopus citations

Abstract

Harmonic power sharing is important in islanded microgrid due to the presence of excessive nonlinear loads in distribution network. The lack of effective harmonic power sharing techniques may lead to overloading of certain distributed generation (DG) units. The concept of variable negative virtual harmonic impedance to share non-linear load in an islanded microgrid has been proposed recently. This paper presents a negative virtual harmonic impedance technique to share nonlinear load in a low voltage microgrid with complex line impedance. A harmonic droop control based on harmonic output power and the virtual output impedance of the DG is implemented to achieve non-linear load sharing. MATLAB/Simulink based simulation studies are presented to validate the non-linear load sharing capability of the proposed strategy.

Original languageBritish English
Title of host publicationIECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3353-3358
Number of pages6
ISBN (Electronic)9781479917624
DOIs
StatePublished - 2015
Event41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015 - Yokohama, Japan
Duration: 9 Nov 201512 Nov 2015

Publication series

NameIECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

Conference

Conference41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015
Country/TerritoryJapan
CityYokohama
Period9/11/1512/11/15

Keywords

  • droop control
  • harmonic current sharing
  • islanding
  • Microgrid
  • series impedance compensation

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