An Adaptive Virtual Impedance Control for Reactive Power Sharing in Microgrids

Junjie Xiao*, Lu Wang, Zian Qin, Pavol Bauer

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

In multi-inverter parallel connected islanded micro-grids, reactive power sharing is challenged by the differences in feeder impedance and various controller parameters. In order to address this issue, a virtual impedance reshaping strategy based on the consensus algorithm is proposed in this paper. The proposed method facilitates adaptive modulation of virtual impedance to ensure that it is consistent with the desired value. Notably, the method has the advantage of accurate reactive power sharing even in the presence of communication delays and interruptions. Furthermore, the proposed strategy exhibits resistance to malicious cyber-attacks by integrating an auxiliary controller that reconstructs the propagated information in the face of cyber threats that challenge the integrity of the original signal. Furthermore, this paper introduces an exit strategy that enables data exchange during the system construction phase and subsequently fixes the virtual impedance proportionally. This feature significantly reduces the communication burden. The effectiveness of the proposed control strategy is evaluated through several experimental cases, including accurate reactive power sharing and plug-and-play capability.

Original languageEnglish
Title of host publication2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages584-589
Number of pages6
ISBN (Electronic)9798350316445
DOIs
Publication statusPublished - 2023
Event2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 - Nashville, United States
Duration: 29 Oct 20232 Nov 2023

Publication series

Name2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

Conference

Conference2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
Country/TerritoryUnited States
CityNashville
Period29/10/232/11/23

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • cyber attack
  • distributed control
  • microgrid
  • power sharing
  • virtual impedance

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