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Virtual Oscillator Control for Grid-Forming Inverters: An Overview of Recent Developments and Small-Signal Analysis

HAMED REZAZADEH, Mohammad Monfared Orcid Logo, Meghdad Fazeli Orcid Logo, Saeed Golestan

2025 Energy Conversion Congress & Expo Europe (ECCE Europe), Pages: 1 - 6

Swansea University Authors: HAMED REZAZADEH, Mohammad Monfared Orcid Logo, Meghdad Fazeli Orcid Logo

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DOI (Published version): 10.1109/ecce-europe62795.2025.11238644

Abstract

Virtual oscillator control (VOC) is an emerging grid-forming technique that has gained significant attention due to its fast dynamic response, lower computational burden compared to synchronous generator emulation-based methods, and superior transient performance. Among the different VOC approaches...

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Published in: 2025 Energy Conversion Congress & Expo Europe (ECCE Europe)
ISBN: 979-8-3315-6753-8 979-8-3315-6752-1
Published: IEEE 2025
URI: https://cronfa.swan.ac.uk/Record/cronfa70995
Abstract: Virtual oscillator control (VOC) is an emerging grid-forming technique that has gained significant attention due to its fast dynamic response, lower computational burden compared to synchronous generator emulation-based methods, and superior transient performance. Among the different VOC approaches suggested in the literature, those based on the Andronov-Hopf oscillator (AHO) have shown superior performance. This paper provides a concise review of recent advancements in VOC strategies, with the primary focus on the AHO structure and their ancillary services, including dispatchability, virtual inertia, damping, and fault ride-through capability. Furthermore, a generalised small-signal model is derived to support control design and stability analysis across different VOC structures. The impact of virtual inertia on transient performance is then examined through both small-signal modelling and experimental validation on a 2.5 kVA single-phase inverter.
College: Faculty of Science and Engineering
Start Page: 1
End Page: 6