Large-Signal Stability of Grid-Forming Inverters via Adaptive Fault Ride-Through Enhanced Droop Control

Large-Signal Stability of Grid-Forming Inverters via Adaptive Fault Ride-Through Enhanced Droop Control | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 22 August 2025 V1 Latest version Share on Large-Signal Stability of Grid-Forming Inverters via Adaptive Fault Ride-Through Enhanced Droop Control Authors : Solomon Mamo Banteywalu 0000-0001-9879-7342 [email protected] and Tesfaye Hailu Seyoum Authors Info & Affiliations https://doi.org/10.22541/au.175589301.15381576/v1 281 views 111 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Grid-forming inverters (GFIs) play a vital role in renewable energy integration, particularly in weak or islanded grids where voltage and frequency must be maintained without external support. This paper proposes an adaptive droop control strategy with integrated dynamic fault ride-through (FRT) logic for GFIs using LCL filters. Unlike conventional droop methods, the approach introduces feedback correction terms into frequency and voltage droop equations, allowing self-regulation under transients such as faults and sudden load changes. Reference values are dynamically adjusted based on system deviations, improving transient stability and fault resilience. The control framework incorporates cascaded inner voltage and current loops to ensure accurate tracking and fast dynamic response. Performance is validated in a five-inverter parallel system connected to a weak grid with a 30 kVA short-circuit level and an X/R ratio of 1, under severe conditions including three-phase faults, generation loss, and islanding. Simulation results confirm that voltage remains within ±5%, frequency within [49.99–50.01 Hz], and Rate of Change of Frequency (RoCoF) below 0.05 Hz/s, demonstrating robustness and compliance with IEEE 1547 and IEC 61727 standards. Supplementary Material File (adaptive_droop_control_gfi_manuscript.docx) Download 776.03 KB Information & Authors Information Version history V1 Version 1 22 August 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords adaptive droop control fault ride-through (frt) grid-forming inverter (gfm) rocof Authors Affiliations Solomon Mamo Banteywalu 0000-0001-9879-7342 [email protected] Hawassa University Institute of Technology View all articles by this author Tesfaye Hailu Seyoum Hawassa University Institute of Technology View all articles by this author Metrics & Citations Metrics Article Usage 281 views 111 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Solomon Mamo Banteywalu, Tesfaye Hailu Seyoum. Large-Signal Stability of Grid-Forming Inverters via Adaptive Fault Ride-Through Enhanced Droop Control. Authorea . 22 August 2025. 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