Autonomous Microgrid Restoration Using Grid-Forming Inverters and Smart Circuit Breakers: Preprint

Abhishek Banerjee, Amit Pandey, Uttam Pailla, Gab-Su Seo, Shashank Shekhar, Himanshu Jain, Yashen Lin, Xiaofan Wu, Joachim Bamberger, Ulrich Muenz

Research output: Contribution to conferencePaper


The proliferation of distributed inverter-based resources (IBRs) raises the questions if these IBRs can be used to blackstart microgrids and distribution feeders after major outages. In this paper, we propose and evaluate an autonomous microgrid restoration concept using grid-forming (GFM) IBRs and smart circuit creakers (SCBs). The concept is first explored in simulation platform and then a hardware testbed containing actual GFM inverters is developed to demonstrate these functionalities. A combination of dispatchable virtual oscillator control (dVOC) and droop-based control schemes have been designed for GFM inverter controls in the software simulations and hardware testbed. Subsequently, operation of SCBs using two distinct principles have been demonstrated that can restore or connect portions of the network.
Original languageAmerican English
Number of pages8
StatePublished - 2022
Event2022 IEEE Power & Energy Society General Meeting - Denver, Colorado
Duration: 17 Jul 202221 Jul 2022


Conference2022 IEEE Power & Energy Society General Meeting
CityDenver, Colorado

Bibliographical note

See NREL/CP-5D00-84952 for paper as published in proceedings

NREL Publication Number

  • NREL/CP-5D00-78457


  • grid reconfiguration
  • grid-forming inverters
  • inverter black start
  • resiliency
  • smart circuit breaker
  • virtual oscillator control


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