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Cited by 131Microgrid Control and OptimizationMultilevel Inverters and ConvertersPower System Optimization and Stability

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Fault Recovery Analysis of Grid-Forming Inverters With Priority-Based Current Limiters

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Fan, Bo, Wang, Xiongfei·2023·IEEE Transactions on Power Systems
DOI 10.1109/tpwrs.2022.3221209
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Abstract

Grid-forming (GFM) inverters are required to operate robustly against grid faults. However, due to the limited over-current capability of inverters, current-limiting controls are usually applied to protect these semiconductor devices, which may prevent GFM inverters from a successful fault recovery. To understand this phenomenon, this study analyzes the fault recovery process of a GFM inverter with a priority-based current limiter. According to whether the GFM inverter can ensure transient stability and exit the current-limiting mode after fault clearance, three post-fault scenarios are identified, includingnormal operation, current limitation, and oscillations. Further, the impacts of the short-circuit ratio and control parameters on the post-fault behavior of GFM inverters are demonstrated. To illustrate the implications of these theoretical results, typical numerical examples are presented. Finally, the theoretical findings are validated through experimental tests.

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References 30 · Cited by 131

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Metadata

Authors
Fan, B., & Wang, X.
Affiliations
  • Aalborg University (DK)
  • KTH Royal Institute of Technology (SE)
ORCID
Venue
IEEE Transactions on Power Systems
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Published
2023-11
Volume
38
Issue
6
Pages
5102-5112
ISSN
  • 0885-8950 (ISSN-L)
  • 1558-0679
DOI
10.1109/tpwrs.2022.3221209
OpenAlex
W4312739724
Cited by
131
References
30
Citations by year
2026: 34 · 2025: 49 · 2024: 41 · 2023: 6
FWCI
9.54
Type
journal article
Language
en
Open access
Licence
Locations
  • IEEE Transactions on Power Systems (publishedVersion, cc-by)
  • VBN Forskningsportal (Aalborg Universitet) (publishedVersion, cc-by)
Funders
European Commission (HORIZON2020, 101031512)
Topics
  • Physical Sciences › Engineering › Control and Systems Engineering › Microgrid Control and Optimization
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Power System Optimization and Stability
Keywords
grid-forming inverters, fault recovery, current limiting control, short-circuit ratio, transient stability, grid faults

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