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Study of Inverter Control Strategies on the Stability of Low-Inertia Microgrid Systems
This paper investigates the stability of low-inertia microgrid systems with two control strategies that have different percentages of grid-forming (GFM) inverters. The first control strategy has approximately 50% GFM inverters, and all the battery inverters are working in GFM con...
Wang, J. and Saraswat, G. NLR
Dec 31, 2021
Utility Grid Operator Resources for Future Power Systems Webinar Series
With funding from the U.S. Department of Energy's Office of Policy, NLR hosted a webinar series for utility engineers, planners, operators, and industry leaders to gain insights from experts, explore cutting-edge research, and participate in Q&A sessions.
Mendoza Carrilo, I. et al NLR
Jun 04, 2025
9 Resources
9 Resources
Cybersecurity for Distributed Energy Resources: All Hazards Approach for Grid Modernization
Distributed energy resources (DER) sit at the intersection of IoT and critical infrastructure. As we work towards clean energy and decarbonization targets, high rates of growth of DER are expected, making them an important component of generation and grid services. They have been ...
Culler, M. Idaho National Laboratory
Dec 06, 2023
Microgrid Program Strategy
The Strategy development process began with microgrid experts deliberating on areas the Strategy should focus on for impactful results. These deliberations led to the development of seven strategic white papers, one for each of the six strategic RandD areas identified and one addi...
Ferreira, S. et al Sandia National Laboratories
Mar 30, 2026
7 Resources
7 Resources
Decentralized Microgrid Protection Through Relative Fault Direction Classification: Preprint
Protection in inverter-based resources (IBRs) dominated microgrids generally face significant challenges due to the low fault current and inconsistent fault behaviors from IBRs. Recently, machine learning-based approaches have attracted considerable attention to address these chal...
Chen, Y. et al NLR
Aug 31, 2024
Black Start of Unbalanced Microgrids Harmonizing Single and Three-Phase Grid-Forming Inverters: Preprint
As power systems are transforming with increasing penetrations of inverter-based resources (IBRs), system restoration using IBRs has drawn attention. Using distributed grid-forming (GFM) assets located near critical loads, either three-phase or single-phase, to establish microgrid...
Seo, G. et al NLR
Jul 31, 2023
Distributed Energy Resources Rate Design and Compensation
This manual from the National Association of Regulatory Utility Commissioners (NARUC) discusses how electric rate structures affect the adoption and operation of distributed energy resources (DER). It explores compensation mechanisms such as net metering, time-of-use rates, demand...
Design, R. National Association of Regulatory Utility Commissioners
Oct 31, 2016
Making the Grid Smarter: Primer on Adopting the New IEEE Std 1547-2018 for Distributed Energy Resources
Published by the Interstate Renewable Energy Council, this primer helps regulators, utilities, and developers understand and implement the requirements of IEEE Standard 1547 2018. It explains key technical provisions ride-through, voltage and frequency regulation, interoperability...
Lydic, B. and Baldwin, S. Interstate Renewable Energy Council
Dec 31, 2018
IREC's IEEE 1547-2018 Adoption Tracker
The Interstate Renewable Energy Council (IREC) maintains a tracker that monitors state regulatory proceedings and legislative actions related to adoption of IEEE Std 1547-2018, which sets technical requirements for interconnecting distributed energy resources to the grid. The inte...
Interstate Renewable Energy Council (IREC)
Dec 31, 2022
Cyber Security Assessment of Distributed Energy Resources
New distributed energy resource (DER) interconnection standards require communications and interoperability to provide grid operators greater flexibility for delivering voltage and frequency support. These communication channels are designed to allow utilities, aggregators, and ot...
Carter, C. et al Sandia National Laboratories
May 31, 2017
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