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Experimental Characterization Test of a Grid-Forming Inverter for Microgrid Applications

Conference ·
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Standardized experimental testing protocols for grid forming (GFM) inverters to ensure expected operation under both normal and contingency conditions do not exist. Such protocols increase the confidence of system owner/operators that an inverter deployed in a proposed system will engage in typical behaviors to ensure interoperability with other units and ancillary equipment (e.g. protection equipment). This paper presents systematic and comprehensive test protocols to evaluate the performance of GFM inverters under the following operational configurations: islanded operation, heterogeneous islanded operation (parallel with a synchronous generator), grid-connected operation, and transition operation. A commercial GFM inverter is used to verify the test protocols and to understand the inverter’s performance and functionalities. In particular, required configuration and tuning of the inverter will be explained in the full paper to enrich the testing protocol.

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
DOE Contract Number:
AC36-08GO28308
OSTI ID:
2305473
Report Number(s):
NREL/CP-5D00-88823; MainId:89602; UUID:2cd0ff78-eee1-4874-9b2a-3fcb1b9622f9; MainAdminId:71815
Resource Relation:
Conference: Presented at the IEEE Energy Conversion Congress and Exposition (ECCE), 29 October - 2 November 2023, Nashville, Tennessee; Related Information: 85381
Country of Publication:
United States
Language:
English

References (6)

Transient Stability Study of a Real-World Microgrid with 100% Renewables October 2022
Improved Control Strategy of Grid-Forming Inverters for Fault Ride-Through in a Microgrid System October 2022
Design of a Generalized Control Algorithm for Parallel Inverters for Smooth Microgrid Transition Operation August 2015
Experimental Evaluation of Grid-Forming Inverters Under Unbalanced and Fault Conditions October 2020
Grid-forming Inverter Experimental Testing of Fault Current Contributions June 2019
Study of Seamless Microgrid Transition Operation Using Grid-Forming Inverters October 2023

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POWER TRANSMISSION AND DISTRIBUTION
black start
droop control
grid-following inverters
grid-forming inverters
transient stability