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Power-Hardware-in-the-Loop Interfaces for Inverter-Based Microgrid Experiments Including Transitions

Conference ·
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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 grid-forming (GFM) inverters to enable simulations of seamless transitions between islanded and grid-connected operation. Such interfaces are particularly challenging when the inverters need to switch modes, i.e., between grid-following (GFL) and GFM as the microgrid transitions between grid-connected and islanded operation. This paper presents two PHIL interfaces for such microgrids and the preliminary experimental results: One interface is suitable for those who have access to a power amplifier that can operate as a controllable current source, and the other is for those who need a solution that uses a voltage-mode power amplifier.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Hydrogen Fuel Cell Technologies Office (HFTO); USDOE Office of Electricity (OE)
DOE Contract Number:
AC36-08GO28308
OSTI ID:
2305401
Report Number(s):
NREL/CP-5D00-88808; MainId:89587; UUID:94c3a1fe-4d0d-4ee7-9195-095f00075c5c; MainAdminId:71797
Resource Relation:
Conference: Presented at the IEEE Energy Conversion Congress and Exposition (ECCE), 29 October - 2 November 2023, Nashville, Tennessee
Country of Publication:
United States
Language:
English

References (11)

The U.S. Department of Energy's Microgrid Initiative October 2012
Research Roadmap on Grid-Forming Inverters November 2020
Enhancing distribution system resiliency using grid-forming fuel cell inverter April 2022
Development of an integrated platform for hardware-in-the-loop evaluation of microgrids prior to site commissioning May 2021
Site-Specific Evaluation of Microgrid Controller Using Controller and Power-Hardware-in-the-Loop October 2019
Modeling and compensation design for a power hardware-in-the-loop simulation of an AC distribution system September 2016
Characteristics and Design of Power Hardware-in-the-Loop Simulations for Electrical Power Systems January 2016
Multi-megawatt-scale fower-hardware-in-the-loop interface for testing ancillary grid services by converter-coupled generation July 2017
Novel Power-Hardware-in-the-Loop Interface Method for Grid-Forming Inverter Systems October 2022
Current-Type Power Hardware-in-the-Loop Interface for Black-Start Testing of Grid-Forming Converter October 2022
Method to Interface Grid-Forming Inverters into Power Hardware in the Loop Setups June 2020

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Related Subjects

POWER TRANSMISSION AND DISTRIBUTION
battery energy storage system
fuel cells
grid- forming inverter
grid-following inverter
microgrid transition
microgrids
power-hardware-in-the-loop