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Blockchain-Enabled Cyber-Secure Microgrid Control Using Consensus Algorithm
This paper proposes a distributed control method based on a consensus algorithm for distributed energy resources (DERs) using blockchain as a secure communication medium for cyber resilience. Each DER communicates with a local blockchain server that is maintained by the distribute...
Mahmud, R. and Seo, G. NLR
Dec 31, 2020
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
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
Quantitative Small-Signal Stability Analysis of Grid-Forming Inverters in Large-Scale Power Systems
In this paper, the challenges induced by the integration of inverter-based resources (IBRs) into existing power systems are discussed. Although the grid-forming (GFM) control has been used to enhance system performance in multiple sections of electric power systems (e.g., transmis...
Ding, L. et al Purdue University
Dec 31, 2022
U.S. Solar Photovoltaic System and Energy Storage Cost Benchmark: Q1 2020
NREL's cost benchmark report documents installed costs for solar PV and PV-plus-storage systems as of the first quarter of 2020. It uses a bottom-up methodology that captures variation in system design, regional labor rates and soft costs. The report shows that the cost of residen...
Feldman, D. et al NLR
Dec 31, 2020
USAID Energy Storage Decision Guide for Policymakers
The purpose of this report is to arm relevant decision makers with the initial layer of information they need to understand energy storage and to make informed policy, regulatory, and investment decisions around grid-connected energy storage. While many of the case studies present...
Chernyakhovskiy, I. et al NLR
Dec 31, 2020
Solar Photovoltaics in Severe Weather: Cost Considerations for Storm Hardening PV Systems for Resilience
Solar photovoltaic (PV) power has many advantages as a resilient power source, including the ability to provide power after a natural disaster. While solar arrays often survive severe weather events, systems are occasionally compromised and left unable to provide power. For PV sy...
Elsworth, J. and Van Geet, O. NLR
May 31, 2020
Investigating Multi-Microgrid Black Start Methods Using Grid-Forming Inverters
This paper examines state-of-the-art microgrid (MG) black-start technologies with grid-forming (GFM) inverter-based resources (IBRs) and proposes black start and interconnection methods for 100% inverter-based MGs. A multiple-MG approach is proposed and compared to the existing me...
Fix, E. et al Siemens
Dec 31, 2022
Synchronization of Lienard-Type Oscillators in Heterogenous Electrical Networks
Motivated by potential applications for power-electronic converters in microgrids, we study the problem of global asymptotic synchronization of Lienard-type nonlinear oscillators in heterogenous LTI electrical networks with series R-L circuits modeling interconnections. By heterog...
Johnson, B. et al University of Minnesota
Dec 31, 2017
Community Resilience Options: A Menu for Enhancing Local Energy Resilience
This document highlights areas of potential community resilience improvements, especially those that relate to clean energy deployment for communities and municipalities. The National Renewable Energy Laboratory (NREL) defines resilience as "a system's ability to anticipate, prepa...
Kramer, A. et al NLR
Apr 30, 2023
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