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Diesel Generator Controller Evaluation via Controller-Hardware-in-the-Loop for Various Microgrid Operation Modes
This paper presents the Controller-Hardware-in-the-Loop (CHIL) evaluation of a diesel generator controller for various microgrid operation modes. The model of the diesel generator (governor, exciter, and primary control) is simulated in real time, and the secondary control is impl...
Wang, J. et al NLR
Jan 31, 2019
National Wind Energy Workforce Assessment Methods Report: Surveys and System Dynamics model
Technical reports summarizing scope, frameworks, and implementation considerations, with examples and references for practitioners. The material includes examples and references intended to guide adoption and implementation.
McDowell, B. and Stefek, J. NLR
Dec 31, 2023
Probabilistic Resource Adequacy Suite (PRAS) v0.6 Model Documentation
This manual provides technical documentation for version 0.6 of the Probabilistic Resource Adequacy Suite (PRAS). It describes the suite's modeling approach, input requirements, calculation methods, and output interpretation. The documentation guides users through installation, co...
Stephen, G. NLR
Apr 30, 2021
Overview of Functional Technical Requirements for Intentional Islands
This document provides an overview of intentional islands, otherwise known as microgrids. The topics covered include common types of microgrid configurations, high level summaries of standards that address some aspect of microgrid implementation and interconnection, and a discussi...
Narang, D. et al NLR
Nov 30, 2022
Cybersecurity in Photovoltaic Plant Operations
This paper provides practical information for PV plant operators regarding cybersecurity. Plans to integrate photovoltaic generation into utility systems requires that cybersecurity be considered in every aspect from customer data to business information to plant monitoring and co...
Walker, A. et al NLR
Feb 28, 2021
Integrated Synchronization Control of Grid-Forming Inverters for Smooth Microgrid Transition
This paper develops an integrated synchronization control technique for a grid-forming inverter operating within a microgrid that can improve the microgrid's transients during microgrid transition operation. This integrated synchronization control includes the disconnection synchr...
Wang, J. et al NLR
Jul 31, 2019
Evaluating the Role of Pre-Application Reports in Improving Distributed Generation Interconnection Processes
NREL report, Evaluating the Role of Pre-Application Reports in Improving Distributed Generation Interconnection Process, evaluates the impact of the pre-application report process and how it relates to the application approval rate. This summary document is based on NREL report ...
Peterson, Z. and Lockhart, E. NLR
Oct 31, 2018
A Broad Overview of Energy Efficiency and Renewable Energy Opportunities for Department of Defense Installations
The Strategic Environmental Research and Developmental Program (SERDP)/Environmental Security Technology Certification Program (ESTCP) is the Department of Defense's (DOD) environmental science and technology program focusing on issues related to environment and energy for the mil...
Anderson, K. NLR
Jul 31, 2011
Design of a Microgrid Transition Controller II: System Recovery Under Abnormal Conditions
This paper presents a microgrid transition controller for managing emergency operation when the microgrid experiences a system blackout caused by an internal or external fault. The developed transition controller consists of various application function blocks, including normal op...
Wang, J. et al NLR
Dec 31, 2017
Background Information on the Protection Requirements in IEEE Std 1547-2018
This resource offers explanatory background on the protection requirements outlined in IEEE Std 1547-2018, the standard governing interconnection of distributed energy resources (DER). It discusses the rationale behind protective device settings, fault detection, anti-islanding re...
Mahmud, R. and Ingram, M. NLR
Dec 31, 2021
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