Virtual oscillator grid-forming inverters: State of the art, modeling, and stability

M Lu - IEEE Transactions on Power Electronics, 2022 - ieeexplore.ieee.org
Grid-forming (GFM) inverters are dc–ac converters that regulate their ac terminal voltage and
frequency in response to real-time measurements. Recent developments on GFM controls …

Control and stability of grid-forming inverters: A comprehensive review

M Mirmohammad, SP Azad - Energies, 2024 - mdpi.com
The large integration of inverter-based resources will significantly alter grid dynamics,
leading to pronounced stability challenges due to fundamental disparities between inverter …

Foundations and challenges of low-inertia systems

F Milano, F Dörfler, G Hug, DJ Hill… - 2018 power systems …, 2018 - ieeexplore.ieee.org
The electric power system is currently undergoing a period of unprecedented changes.
Environmental and sustainability concerns lead to replacement of a significant share of …

Overview of power converter control in microgrids—Challenges, advances, and future trends

J Hu, Y Shan, KW Cheng, S Islam - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
As the electronic interfaces between distributed energy resources and the electrical network,
power converters play a vital role in voltage stabilization and power conversion. So far …

Grid-forming control for power converters based on matching of synchronous machines

C Arghir, T Jouini, F Dörfler - Automatica, 2018 - Elsevier
We consider the problem of grid-forming control of power converters in low-inertia power
systems. Starting from an average-switch three-phase power converter model, we draw …

Droop-free distributed control for AC microgrids

V Nasirian, Q Shafiee, JM Guerrero… - … on Power Electronics, 2015 - ieeexplore.ieee.org
A cooperative distributed secondary/primary control paradigm for AC microgrids is
proposed. This solution replaces the centralized secondary control and the primary-level …

Synthesizing virtual oscillators to control islanded inverters

BB Johnson, M Sinha, NG Ainsworth… - … on Power Electronics, 2015 - ieeexplore.ieee.org
Virtual oscillator control (VOC) is a decentralized control strategy for islanded microgrids
where inverters are regulated to emulate the dynamics of weakly nonlinear oscillators …

Voltage stabilization in microgrids via quadratic droop control

JW Simpson-Porco, F Dörfler… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
We consider the problem of voltage stability and reactive power balancing in islanded small-
scale electrical networks outfitted with DC/AC inverters (“microgrids”). A droop-like voltage …

A grid-compatible virtual oscillator controller: Analysis and design

M Lu, S Dutta, V Purba, S Dhople… - 2019 IEEE Energy …, 2019 - ieeexplore.ieee.org
In this paper, we present a virtual oscillator control (VOC) strategy for power inverters to
operate in either grid-connected or islanded settings. The proposed controller is based on …

Modeling and control of islanded DC microgrid clusters with hierarchical event-triggered consensus algorithm

Z Chen, X Yu, W Xu, G Wen - IEEE Transactions on Circuits and …, 2020 - ieeexplore.ieee.org
This paper proposes a distributed hierarchical control framework for energy storage systems
(ESSs) in DC microgrid clusters, which achieves voltage regulation and current sharing for …