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Autonomous Microgrid Restoration Using Grid-Forming Inverters and Smart Circuit Breakers
The proliferation of distributed inverter-based resources (IBRs) raises the questions if these IBRs can be used to blackstart microgrids and distribution feeders after major outages. In this paper, we propose and evaluate an autonomous microgrid restoration concept using grid-for...
Banerjee, A. et al Siemens Technology
Dec 31, 2021
Highlights of IEEE Standard 1547-2018 Implementation Considerations
This resource summarizes key implementation considerations for IEEE Std 1547-2018. It highlights technical requirements such as voltage and frequency ride-through, power quality, communications, interoperability, and testing. The document provides guidance on how utilities, manu...
Narang, D. NLR
Aug 25, 2021
Cybersecurity Certification Recommendations for Interconnected Grid Edge Devices and Inverter Based Resources
Escalating deployment of PV and grid-edge devices on the distribution grid has increased the sustainability and efficiency of the electric grid. However, the increasing number of distributed energy resources (DERs) deployed creates a heightened cyber-physical interdependency on th...
Hupp, W. et al NLR
Oct 31, 2021
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
A Data-Driven Passive Islanding Detection Scheme
This paper proposes a novel statistical parameters based data driven approach for passive islanding detection. The proposed scheme relies in the voltage data, measured at the point of common coupling, and is comprised of three stages. The Stage-1 quickly detects what is termed as ...
Reddy, M. et al NLR
Dec 31, 2022
Utility and Grid Operator Resources for Future Power Systems Webinar Series: Introduction to Microgrids
NREL's collection highlights research, datasets, and decision support tools for transmission and distribution planning, interconnection studies, and operations. The page helps utilities and grid operators evaluate options for accommodating emerging large loads, including data cent...
Prabakar, K. NLR
Jul 15, 2025
Highlights of IEEE Standard 1547-2018
This document provides a concise overview of the 2018 revision of IEEE Std 1547. It outlines the major changes compared to the 2003 edition, including ride-through capabilities, frequency and voltage response, active power controls, and interoperability requirements. The overvie...
Ingram, M. and Narang, D. NLR
Dec 31, 2018
Revision of IEEE Std 1547: Additional Topics
This TechSurveillance article is the last in a series of four articles that describe the changes proposed for IEEE 1547, provide the rationale for these changes, and describe how they will affect the planning, design, protection, and operation of rural electric cooperative distri...
Walling, R. Walling Energy Systems Consulting, LLC
Mar 31, 2017
Improved Control Strategy of Grid-Forming Inverters for Fault Ride-Through in a Microgrid System
This paper develops an improved control strategy of grid-forming (GFM) inverters with fault ride-through capabilities to guarantee the stable operation of microgrids under fault conditions, especially islanded microgrids and asymmetrical faults. The proposed control strategy inclu...
Wang, J. NLR
Dec 31, 2021
Design of a Non-PLL Grid-Forming Inverter for Smooth Microgrid Transition Operation
This paper develops a controller for a grid-forming (GFM) inverter that is capable of operating as either a GFM or grid-feeding source that can improve the operation of a microgrid during on-off grid transitions through use of a novel synchronization approach. Furthermore, this co...
Wang, J. et al NLR
Aug 01, 2020
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