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An Innovative Energy Management System for Microgrids with Multiple Grid-Forming Inverters
As increasingly more grid-forming (GFM) inverter-based resources replace traditional fossil-fueled synchronous generators as the GFM sources in microgrids, the existing microgrid energy management systems (EMS) need to be updated to control and coordinate multiple GFM inverters th...
Comden, J. and Wang, J. NLR
Dec 31, 2023
2024 Standard Scenarios Report: A U.S. Electricity Sector Outlook
NREL's 2024 Standard Scenarios report offers a comprehensive outlook for the U.S. electricity sector using a suite of scenarios that incorporate varying assumptions about technology costs, policy landscapes, and market trends. The report presents projections of generation mix, cap...
Gagnon, P. et al NLR
Nov 30, 2024
Roadmap for Photovoltaic Cyber Security
Cyber-secure, resilient energy is paramount to the prosperity of the United States. As the experience and sophistication of cyber adversaries grow, so too must the US power system’s defenses, situational awareness, and response and recovery strategies. Traditionally, power syste...
Johnson, J. Sandia National Laboratories
Nov 30, 2017
The Advanced Microgrid: Integration and Interoperability
Produced by Sandia National Laboratories, this paper examines the concept of the advanced microgrid and the need for integration and interoperability across hardware, software, and communications interfaces. It discusses the evolution from traditional islanded microgrids to system...
Bower, W. et al Sandia National Laboratories
Feb 28, 2014
Residential Consumer Guide to Solar Energy
Published by the Solar Energy Industries Association (SEIA), this guide helps consumers navigate the process of adopting residential solar power. It explains how solar photovoltaic systems work, outlines factors to consider when selecting equipment and installers, and describes fi...
Solar Energy Industries Association (SEIA)
Jun 30, 2025
Circulating Current Reduction of Back-to-Back MMC with Advanced Grid-Support Functionalities for Medium-Voltage Applications
A Lyapunov energy function based circulating current reduction scheme for a back to back modular multilevel converter based system for a microgrid application has been proposed in this digest. In order to ensure no circulating or zero sequence currents within the modules, the dyn...
Roy Chowdhury, V. et al NLR
Dec 31, 2022
Operation of Grid Forming Converters as Self Excited Induction Generators Under Non-Ideal Loading Conditions
Self-excited induction generators offer a robust solution for power production for standalone as well as grid-connected systems. In general, self-excited induction generators require excitation capacitors which make use of the machine magnetization characteristics for voltage buil...
Roy Chowdhury, V. and Mather, B. NLR
Dec 31, 2023
Virtual Cable Impedance based Load Sharing in a Microgrid for Parallel Connected Grid Forming Converters
This paper presents a novel approach to power sharing between direct connected grid-forming converters, utilizing virtual cable impedance and droop-based outer loop control. To enhance stability, resistive droop is implemented, while virtual cable impedance with non-zero resistive...
Roy Chowdhury, V. et al NLR
Dec 31, 2024
Analysis of Microgrid Performance, Reliability, and Resilience (AMPeRRe) Computational Model: Novel Analytical Model to Forecast the Outcomes of Installation Power Grids
Federal facilities, industrial areas, academic campuses, and communities are working to incorporate greater renewable energy sources and energy storage in their power infrastructure. While renewable sources of energy can—and do—support several facilities, uncertainty still exi...
Bozada, T. et al
Nov 30, 2024
Inverter Controls for Smooth Transition Operation and Voltage Balancing of Networked Microgrids
With increasing penetrations of distributed energy resources (DERs), researchers have extensively studied the formation and networking of microgrids to improve reliability during distribution system outages. However, these operations might require DERs in the microgrids to switch...
Sawant, J. et al NLR
Dec 31, 2022
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