Abstract
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 language | American English |
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Number of pages | 8 |
State | Published - 2022 |
Event | 2022 IEEE Power & Energy Society General Meeting - Denver, Colorado Duration: 17 Jul 2022 → 21 Jul 2022 |
Conference
Conference | 2022 IEEE Power & Energy Society General Meeting |
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City | Denver, Colorado |
Period | 17/07/22 → 21/07/22 |
Bibliographical note
See NREL/CP-5D00-84952 for paper as published in proceedingsNREL Publication Number
- NREL/CP-5D00-78457
Keywords
- grid reconfiguration
- grid-forming inverters
- inverter black start
- resiliency
- smart circuit breaker
- virtual oscillator control