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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
Development of a Practical Secondary Control for Hardware Microgrids
Practical, vendor-agnostic interoperability guidelines for the secondary control architecture of microgrids (MGs) with multiple grid-forming (GFM) inverter-based resources (IBRs) have not yet been developed. Therefore, this paper proposes a generic and vendor-agnostic secondary co...
Chakraborty, S. et al NLR
Dec 31, 2024
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
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
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
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
Guide to the Distributed Energy Resources Cybersecurity Framework
In May 2018, the U.S. Department of Energy (DOE) released its Cybersecurity Strategy document, a multiyear plan specifically regarding cybersecurity in the energy sector. The framework outlined in this report aligns with strategies identified in the DOE Cybersecurity Strategy docu...
Powell, C. et al NLR
Nov 30, 2019
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
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
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