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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
Grid Application and Controls Development for Medium-Voltage SiC-Based Grid Interconnects: Preprint
In this paper, the grid-interconnection requirements of directly connected medium voltage (MV) SiC-based converters are studied and the necessary control implementations are detailed. These power electronic converters use the interconnection standard IEEE 1547-2018, but can also h...
Singh, A. et al NLR
Sep 30, 2020
Technology Transition Final Public Report; Smart Power Infrastructure Demonstration for Energy Reliability and Security (SPIDERS), Joint Capability Technology Demonstration (JCTD).
The Smart Power Infrastructure Demonstration for Energy Reliability and Security (SPIDERS) Joint Capability Technology Demonstration was a multiphase program led by the U.S. Department of Defense and Department of Energy to develop and demonstrate secure, resilient microgrids at m...
Command, E. U.S. Department of Defense and U.S. Department of Energy
Dec 30, 2015
Power-Hardware-in-the-Loop Interfaces for Inverter-Based Microgrid Experiments Including Transitions
Microgrids continue to proliferate, particularly those that rely on inverter-based resources as the microgrid's voltage and frequency leader. Hardware-in-the-loop simulations can de-risk microgrid deployments, and therefore we need power hardware-in-the-loop (PHIL) interfaces for ...
Pratt, A. et al NLR
Dec 31, 2022
Lithium-ion Battery Storage Technical Specifications
This FEMP publication provides technical specifications to assist federal agencies in procuring lithium-ion battery energy storage systems. It outlines requirements for system capacity, safety, performance, warranties, testing, and integration with existing infrastructure. The doc...
Program, M. U.S. Department of Energy
Apr 06, 2024
Quantitative Trade-Off in Distributed Secondary Control for Autonomous AC Microgrids
In this paper, we propose to quantify the trade-off between voltage regulation and reactive power sharing in autonomous AC microgrids with distributed secondary control. It is known that voltage regulation and reactive power sharing in droop-controlled autonomous AC microgrids are...
Liu, Z. et al Purdue University
Dec 31, 2024
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
Revision of IEEE Standard 1547: The Background for Change
This article is the first in a four-part series regarding the IEEE standard 1547 and its impact on the electric grid. The background and purpose of this standard is discussed here, and subsequent articles will focus on related issues of voltage regulation, disturbance performance,...
Walling, R. Walling Energy Systems Consulting, LLC
Oct 31, 2016
Hardware-in-the-Loop Test Bed and Test Methodology for Microgrid Controller Evaluation
Increasing penetration levels of distributed energy resources are making the deployment of microgrids more feasible. Controllers that operate such microgrids are key to realizing the objectives of the microgrid owner or operator and there is a need to evaluate microgrid controller...
Prabakar, K. et al NLR
Aug 16, 2018
A Primer on the Unintentional Islanding Protection Requirement in IEEE Std 1547-2018
This primer provides an accessible explanation of the unintentional islanding protection provisions in IEEE Std 1547-2018. It describes why preventing unintentional islanding is critical, outlines testing and detection methods, and clarifies performance requirements for distribute...
Narang, D. et al NLR
Mar 31, 2022
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