skip to main content


Title: Protection of autonomous microgrids using agent-based distributed communication

This study presents a real-time implementation of autonomous microgrid protection using agent-based distributed communication. Protection of an autonomous microgrid requires special considerations compared to large scale distribution net-works due to the presence of power converters and relatively low inertia. In this work, we introduce a practical overcurrent and a frequency selectivity method to overcome conventional limitations. The proposed overcurrent scheme defines a selectivity mechanism considering the remedial action scheme (RAS) of the microgrid after a fault instant based on feeder characteristics and the location of the intelligent electronic devices (IEDs). A synchrophasor-based online frequency selectivity approach is proposed to avoid pulse loading effects in low inertia microgrids. Experimental results are presented for verification of the pro-posed schemes using a laboratory based microgrid. The setup was composed of actual generation units and IEDs using IEC 61850 protocol. The experimental results were in excellent agreement with the proposed protection scheme.
ORCiD logo [1] ;  [1] ;  [1]
  1. Florida Intl Univ., Miami, FL (United States)
Publication Date:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
IEEE Transactions on Power Delivery
Additional Journal Information:
Journal Volume: 32; Journal Issue: 1; Journal ID: ISSN 0885-8977
Research Org:
Florida Intl Univ., Miami, FL (United States)
Sponsoring Org:
USDOE Office of Electricity Delivery and Energy Reliability (OE)
Country of Publication:
United States
24 POWER TRANSMISSION AND DISTRIBUTION; agent systems; IEC 61850; microgrid, protection; remedial action scheme; synchrophasor
OSTI Identifier: