Adaptive Power Sharing Strategies of Parallel Droop-Controlled GFM Inverters in AC Microgrids

Sara H. Moustafa, Ahmed M. Ibrahim, Rawan A. Taha, Ahmed S. Soliman, Mahmoud M. Amin, Fayez F. El-Sousy, Osama A. Mohammed

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

Abstract

This paper investigates adaptive power-sharing strategies for parallel grid-forming inverters (GFMs) in islanded AC microgrids. A distributed generation (DG) and a battery energy storage system (BESS) are coordinated using three distinct control approaches: proportional droop-based sharing, selective load sharing with BESS state-of-charge (SoC) management, and a combined operation strategy for extended load conditions. The proposed adaptive droop control method ensures stable and efficient power distribution while enhancing system resilience. Simulation results demonstrate the effectiveness of these strategies in maintaining frequency stability, optimizing power quality, and extending BESS lifespan. Comparative performance evaluations highlight the benefits of dynamic droop adjustments under varying load conditions. The findings provide valuable insights into improving the operational flexibility and robustness of islanded microgrids with multiple inverter-based resources.

Original languageEnglish
Title of host publication2025 IEEE Industry Applications Society Annual Meeting, IAS 2025
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665457767
DOIs
StatePublished - 2025
Event2025 IEEE Industry Applications Society Annual Meeting, IAS 2025 - Taipei, Taiwan, Province of China
Duration: 15 Jun 202520 Jun 2025

Publication series

NameConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
ISSN (Print)0197-2618

Conference

Conference2025 IEEE Industry Applications Society Annual Meeting, IAS 2025
Country/TerritoryTaiwan, Province of China
CityTaipei
Period15/06/2520/06/25

Keywords

  • adaptive droop
  • adaptive power sharing
  • and energy storage management
  • droop-controlled GFM
  • grid forming inverters
  • islanded AC microgrids
  • unity power factor

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