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Bibliographic Details
Main Authors: Al-Karsani, Ahmed Saad, Khanbaghi, Maryam
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2511.05779
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author Al-Karsani, Ahmed Saad
Khanbaghi, Maryam
author_facet Al-Karsani, Ahmed Saad
Khanbaghi, Maryam
contents The transition towards clean energy and the introduction of Inverter-Based Resources (IBRs) are leading to the formation of Microgrids (MGs) and Networks of MGs (NMGs). MGs and NMGs can operate autonomously in islanded mode, which requires Grid-Forming (GFM) IBRs that can perform black start, synchronization, restoration and regulation. However, such IBRs can face synchronization instability issues, which might be worsened by inadequate secondary level frequency and voltage regulation. Accordingly, we propose an autonomous and distributed synchronization and restoration scheme using Distributed-Averaging Proportional-Integral (DAPI) control. To validate the proposed method, we model and simulate a high-fidelity islanded and modified IEEE 123 bus system, modeled as an NMG consisting of 7 MGs. The MATLAB/Simulink simulation results demonstrate an effective autonomous soft-start, synchronization, connection and regulation procedure using DAPI control and distributed breaker operation logic.
format Preprint
id arxiv_https___arxiv_org_abs_2511_05779
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Autonomous and Distributed Synchronization and Restoration of an Islanded Network of Microgrids
Al-Karsani, Ahmed Saad
Khanbaghi, Maryam
Systems and Control
The transition towards clean energy and the introduction of Inverter-Based Resources (IBRs) are leading to the formation of Microgrids (MGs) and Networks of MGs (NMGs). MGs and NMGs can operate autonomously in islanded mode, which requires Grid-Forming (GFM) IBRs that can perform black start, synchronization, restoration and regulation. However, such IBRs can face synchronization instability issues, which might be worsened by inadequate secondary level frequency and voltage regulation. Accordingly, we propose an autonomous and distributed synchronization and restoration scheme using Distributed-Averaging Proportional-Integral (DAPI) control. To validate the proposed method, we model and simulate a high-fidelity islanded and modified IEEE 123 bus system, modeled as an NMG consisting of 7 MGs. The MATLAB/Simulink simulation results demonstrate an effective autonomous soft-start, synchronization, connection and regulation procedure using DAPI control and distributed breaker operation logic.
title Autonomous and Distributed Synchronization and Restoration of an Islanded Network of Microgrids
topic Systems and Control
url https://arxiv.org/abs/2511.05779