Load sharing strategy incorporating power limits in islanded inverter-based microgrids

Chiebuka Eyisi, Guanyu Tian, Petr Vorobev, Qifeng Li

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

1 Citation (Scopus)

Abstract

Microgrids (MGs) comprising multiple interconnected distributed energy resources (DERs) with coordinated control strategies can operate in both grid-connected and islanded modes. In the grid-connected mode, the frequency and bus voltages are maintained by the utility grid. In the islanded mode, the DERs maintain the frequency and bus voltages in the MG. This paper presents a load demand sharing strategy in an islanded voltage source inverter-based microgrid (VSI-MG). The survivability of the interconnected MG in the presence of a single fully loaded VSI in an islanded VSI-MG is investigated. The concept of virtual synchronous machines (VSM) that enables the modeling of the VSI to emulate the inertia effect of synchronous machines is applied and then a Jacobian-based approach is formulated that takes into account, the capacity of the VSI. Simulation results are presented to verify the effectiveness of the approach.

Original languageEnglish
Title of host publication2020 IEEE Electric Power and Energy Conference, EPEC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728164892
DOIs
Publication statusPublished - 9 Nov 2020
Event2020 IEEE Electric Power and Energy Conference, EPEC 2020 - Edmonton, Canada
Duration: 9 Nov 202010 Nov 2020

Publication series

Name2020 IEEE Electric Power and Energy Conference, EPEC 2020

Conference

Conference2020 IEEE Electric Power and Energy Conference, EPEC 2020
Country/TerritoryCanada
CityEdmonton
Period9/11/2010/11/20

Keywords

  • AC microgrid
  • Distributed energy resources
  • Droop control
  • Transient stability
  • Virtual synchronous machine (VSM)

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