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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
Distributed Renewables for Arctic Energy: A Case Study
Alaska is a vast state that stretches into the Arctic Circle. Roughly 140,000 people in the state are dependent on isolated electric grids, traditionally burning expensive fossil fuels. This has negative impacts on air quality and climate. As the climate warms, fuel supply chains ...
Anderson, B. et al NLR
Dec 31, 2022
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
Remote Hardware-in-the-Loop Approach for Microgrid Controller Evaluation
Utilities have been installing microgrids because of the increased resilience and reliability advantages they may provide to the distribution system. A microgrid controller is a critical component in microgrids. It is of great benefit to derisk the installation of microgrid contro...
Prabakar, K. et al NLR
Feb 29, 2020
Impact of Geothermal District Heating System on Flexibility of Microgrid in Tuttle, Oklahoma: Preprint
Flexibility is the capability of the power grid to maintain a balance between electricity generation and variable demand. This study presents preliminary results evaluating the impact of geothermal district heating systems on the flexibility of a conceptual microgrid in Tuttle, Ok...
Oh, H. et al NLR
Sep 30, 2024
Networked Microgrids for Improved Resilient Operation: A Case Study in Adjuntas Puerto Rico
This paper presents a case study of a network microgrid orchestrator designed to allow coordinated operation of microgrids. Through Control Hardware in the Loop (CHIL), the proposed microgrid orchestrator was validated using, as case study two community-owned microgrids in Adjunta...
Ferrari, M. et al Oak Ridger National Laboratory
Oct 31, 2023
Understanding Line Losses and Transformer Losses in Rural Isolated Distribution Systems
Rural, isolated power systems in the mainland U.S. and in states like Alaska and Hawaii are powered by assets like diesel generators. These rural, isolated power systems also cannot operate at the higher band of medium voltage (like 69kV). They are primarily in the 12 to 14 kV ran...
Prabakar, K. NLR
May 01, 2024
Use of Traveling Wave Signatures in Medium-Voltage Distribution Systems for Fault Detection and Location
Protection systems are a critical feature for the proper operation of a power grid. Protection systems should be able to quickly detect, identify, locate, and isolate the faults within a time frame that prevents damage to grid components and reduces customer outages. As more inver...
Prabakar, K. et al NLR
Jul 31, 2021
Advanced Distributed Wind Turbine Controls Series
Documents and analyses that detail control strategies for distributed wind to provide services beyond energy. Using a reference campus model, the resources cover isolated-grid operation, fault-ride-through in grid-connected deployments, and support for microgrid transitions and bl...
Anderson, B. et al NLR
Dec 31, 2021
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