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Study of Seamless Microgrid Transition Operation Using Grid-Forming Inverters
This paper investigates operational techniques to achieve seamless (smooth) microgrid (MG) transitions by dispatching a grid-forming (GFM) inverter. In traditional approaches, the GFM inverter must switch between grid-following (GFL) and GFM control modes during MG transition oper...
Wang , J. et al NLR
Dec 31, 2022
Design of a Non-PLL Grid-Forming Inverter for Smooth Microgrid Transition Operation
This paper develops a controller for a grid-forming (GFM) inverter that is capable of operating as either a GFM or grid-feeding source that can improve the operation of a microgrid during on-off grid transitions through use of a novel synchronization approach. Furthermore, this co...
Wang, J. et al NLR
Aug 01, 2020
Black-Starting Microgrids Using Inverter-Based Distributed Energy Resources
Recent trends in power systems show increasing deployment of inverter-based distributed energy resources (DERs) at the distribution level. Efforts have also been made to use inverter-based DERs for system restoration of critical sections of distribution feeders. In the past few ye...
Sawant, J. et al NLR
Dec 31, 2024
Design of Resilient Electric Distribution Systems for Remote Communities: Surgical Load Management using Smart Meters
This paper describes a systematic process of designing resilient electric distribution systems and microgrids using smart meters for surgical load management (SLM) as part of Advanced Metering Infrastructure (AMI). The work focuses on selection approach, integration, and interoper...
Panwar, M. et al NLR
Dec 31, 2020
Flexible Operation of Microgrids Through Operator-Configurable Microgrid Controllers
Microgrids are becoming critical assets in power distribution systems. This is partly due to the resiliency and reliability challenges faced by power distribution systems in the last decade and partly due to the increased integration of distributed energy resource assets, such as ...
Curtiss, P. et al SandC Electric Company
Dec 31, 2024
Interoperable, Inverter Based Distributed Energy Resources Enable 100% Renewable and Resilient Utility Microgrids
As microgrids transition away from use of conventional generating resources and increasingly rely on renewable resources towards decarbonization goals, it is crucial to evaluate the capability inverter-based resources to provide microgrid stability and resilience. Particularly, mi...
Abcede, L. et al San Diego Electric and Gas
Dec 31, 2024
A Novel Power-Hardware-in-the-Loop Interface Method for Grid-Forming Inverter Systems
Power-hardware-in-the-loop (PHIL) simulations of grid-forming (GFM) inverter systems facilitate the testing of drastic scenarios, such as on-grid to off-grid transitions and islanded microgrid operations without a stiff grid. To the authors' best knowledge, most studies in the lit...
Chakraborty, S. et al University of Minnesota
Dec 31, 2021
Supply Chain Cybersecurity Recommendations for Solar Photovoltaics
Solar photovoltaic (PV) cybersecurity is a growing field of research. As deployments of solar PV has increased, cyber risk has also increased. However, utility solar PV installations are not required to comply with North American Electric Reliability Corporation (NERC) Critical In...
Cryar, R. et al NLR
Jul 31, 2023
CERTS Microgrid Demonstration With Large-Scale Energy Storage and Renewable Generation
The Consortium for Electric Reliability Technology Solutions (CERTS) Microgrid concept captures the emerging potential of Distributed Energy Resource (DER) using an automatous plug-and-play approach. CERTS views generation and associated loads as a subsystem or a “Microgrid.” ...
Alegria, E. et al Consortium for Electric Reliability Technology Solutions
Feb 28, 2014
Dispatching Grid-Forming Inverters in Grid-Connected and Islanded Mode
This paper explores the dispatchability of grid-forming (GFM) inverters in grid-connected and islanded mode. GFM inverters usually use droop control to automatically share power with other GFM sources (inverters and synchronous generators) and follow the change in the load demand;...
Wang, J. et al NLR
Dec 31, 2023
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