Power Quality improvement of microgrids by virtual synchronous generator control

  • Jia Liu
  • , Yushi Miura
  • , Toshifumi Ise

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

20 Scopus citations

Abstract

Due to inertia-less feature of inverters, microgrids with high penetration rate of inverter-interfaced distributed generators (DGs) usually suffer from power quality issues such as poor dynamic frequency stability. A promising solution of this issue is to apply virtual synchronous generator (VSG) control concept to inverter-interfaced DGs. In this paper, it is shown that compared to previous microgrid control scheme, e.g. conventional droop control, VSG control can improve microgrid frequency stability during loading transitions and fault events. This conclusion is demonstrated by theoretical time domain response of DG frequency obtained through small-signal analyses, and is verified by simulations performed in PSCAD/EMTDC.

Original languageEnglish
Title of host publication10th International Conference - 2016 Electric Power Quality and Supply Reliability, PQ 2016, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages119-124
Number of pages6
ISBN (Electronic)9781509015627
DOIs
StatePublished - 27 Oct 2016
Externally publishedYes
Event10th International Conference on Electric Power Quality and Supply Reliability, PQ 2016 - Tallinn, Estonia
Duration: 29 Aug 201631 Aug 2016

Publication series

Name10th International Conference - 2016 Electric Power Quality and Supply Reliability, PQ 2016, Proceedings

Conference

Conference10th International Conference on Electric Power Quality and Supply Reliability, PQ 2016
Country/TerritoryEstonia
CityTallinn
Period29/08/1631/08/16

Keywords

  • Distributed power generation
  • droop control
  • frequency stability
  • inverter
  • microgrid
  • virtual synchronous generator

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