[PDF][PDF] Virtual oscillator-based methods for grid-forming inverter control: A review

SA Aghdam, M Agamy - IET Renewable Power Generation, 2022 - scholar.archive.org
In inverter-dominant power systems, grid-forming (GFM) inverters regulate voltage and
frequency. To construct GFM inverters, conventionally, various control methods based on …

Unified virtual oscillator control for grid-forming and grid-following converters

MA Awal, I Husain - IEEE Journal of Emerging and Selected …, 2020 - ieeexplore.ieee.org
A unified virtual oscillator controller (uVOC) is proposed, which enables a unified analysis,
design, and implementation framework for both grid-forming (GFM) and grid-following (GFL) …

Comparative transient stability assessment of droop and dispatchable virtual oscillator controlled grid-connected inverters

H Yu, MA Awal, H Tu, I Husain… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
With the increasing integration of power electronics interfaced distributed generators,
transient stability assessment of grid-connected inverters subjected to large grid …

Transient stability assessment for current-constrained and current-unconstrained fault ride through in virtual oscillator-controlled converters

MA Awal, I Husain - IEEE Journal of Emerging and Selected …, 2021 - ieeexplore.ieee.org
Unified virtual oscillator controller (uVOC) inherits the rigorous analytical foundation offered
by oscillator-based grid-forming (GFM) controllers and enables fast overcurrent limiting and …

Design and Implementation of Optimized Andronov-Hopf Oscillator Control Method for Parallel Inverters in Standalone Microgrid

V Gurugubelli, A Ghosh… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The idea of virtual oscillator control (VOC) for parallel inverters is explained in this study.
This article also presents a variety of oscillators: Deadzone oscillator (DZO), Van der Pol …

Reduction in voltage harmonics of parallel inverters based on robust droop controller in islanded microgrid

S Alghamdi, HF Sindi, A Al-Durra, AA Alhussainy… - Mathematics, 2022 - mdpi.com
In this article, a distributed control scheme to compensate for voltage harmonics in islanded
microgrids is presented, where each distributed generation (DG) source has a primary …

Accurate control of virtual oscillator-controlled islanded AC microgrids

N Mohammed, M Ali, M Ciobotaru, J Fletcher - Electric Power Systems …, 2023 - Elsevier
Virtual oscillator control (VOC) is an emerging control strategy for grid-forming inverters. In
contrast with the droop and virtual synchronous generator methods, VOC is a nonlinear and …

An average consensus‐based power‐sharing among VOC‐based distributed generations in multi‐bus islanded microgrids

TT Tran, I Sowa, D Raisz, A Monti - … Generation, Transmission & …, 2021 - Wiley Online Library
This study proposes a hierarchical control structure for load power‐sharing among
distributed generations (DG) in a multi‐bus microgrid (MG). The proposed control structure …

[HTML][HTML] An individual sequencing control strategy for three-phase four-leg inverter under unbalanced loads

H Jiang, H Pan, B Shang - Energy Reports, 2023 - Elsevier
Under the influence of the unbalanced load, the negative and zero sequence components in
the output voltage of the three-phase four-leg voltage source inverter (TPFL-VSI) will cause …

A grid-forming multi-port converter using unified virtual oscillator control

MA Awal, MRH Bipu, S Chen, M Khan… - 2020 IEEE Energy …, 2020 - ieeexplore.ieee.org
A multi-port converter (MPC) consisting of a grid-forming port, a DC port, and a split-phase-
AC port is proposed which can be used as building blocks in hybrid AC-DC systems such as …