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Improved Control Strategy of Grid-Forming Inverters for Fault Ride-Through in a Microgrid System
This paper develops an improved control strategy of grid-forming (GFM) inverters with fault ride-through capabilities to guarantee the stable operation of microgrids under fault conditions, especially islanded microgrids and asymmetrical faults. The proposed control strategy inclu...
Wang, J. NLR
Dec 31, 2021
BioFuels Atlas
The BioFuels Atlas is an online geospatial tool developed by NREL that supports planning and deployment of biofuel projects. Users can visualize and query layers showing biomass feedstock availability (crop residues, woody biomass, waste oils), existing biorefineries and ethanol p...
NLR
Jul 28, 2022
Geothermal Prospector
The Geothermal Prospector is an interactive map application developed by NREL to help users evaluate geothermal resource potential. It overlays geothermal resource layers such as heat flow, temperature at depth, hydrothermal reservoirs, and enhanced geothermal system favorability ...
NLR
Jul 28, 2022
HYDRA
HYDRA (Hydropower Resource Assessment Tool) developed by NREL analyzes stream gauge data, topography, and land use to identify locations where new run-of-river or conduit hydropower projects might be feasible. The tool evaluates technical potential by estimating head, flow, and th...
NLR
Mar 30, 2026
RE Atlas
The Renewable Energy Atlas is a web based mapping platform maintained by NREL that provides high resolution global data for solar, wind, biomass, geothermal, and marine resources. Users can toggle layers to view resource intensity, land ownership, environmental constraints, and in...
NLR
Jul 28, 2022
Hierarchical Data-Driven Protection for Microgrid with 100% Renewable Penetration: Preprint
The accurate detection and isolation of faults is critical for the reliable operation of microgrids (MGs). Traditional protection approaches are even more challenged for 100% renewable MGs because inverter-based resources (IBRs) are the only sources for fault current which are usu...
Zamzam, A. and Wang, J. NLR
Oct 31, 2023
NREL and SDGandE Collaboration to Support SDGandE Grid and Storage Efforts: Cooperative Research and Development Final Report, CRADA Number: CRD-14-562
This project will enable effective utilization of high penetration of photovoltaics (PV) in islanded microgrids, increasing overall system efficiency, decreased fuel costs and resiliency of the overall system to help meet the SunShot goals of enhancing system integration methods t...
Baggu, M. NLR
Dec 31, 2016
Design of Zone-Based Hierarchical Protection System for 100% Renewable Microgrids: Preprint
Design of a reliable and secure protection system for a 100% renewable microgrid with only inverter-based resources (IBRs), is quite challenging. Most of the existing protection schemes in the state-of-the-art are suitable for microgrids with mixed-type of distributed energy resou...
Chakraborty, S. and Wang, J. NLR
May 31, 2024
A SVM-Based Synchronized Fault Detection for 100% Renewable Microgrids: Preprint
Traditional protection schemes face significant challenges when applied to microgrids with high penetrations of renewables with inverter-based resources (IBRs). The proliferation of advanced sensing and communication technologies has generated copious data, offering an opportunity...
Chakraborty, S. et al NLR
Oct 31, 2024
SVM-Based Synchronized Fault Detection for 100% Renewable Microgrids
Traditional protection schemes face significant challenges when applied to microgrids with high penetrations of renewables with inverter-based resources (IBRs). The proliferation of advanced sensing and communication technologies has generated copious data, offering an opportunity...
Chakraborty, S. et al NLR
Dec 31, 2024
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