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) …

State of the art of the techniques for grid forming inverters to solve the challenges of renewable rich power grids

E Bikdeli, MR Islam, MM Rahman, KM Muttaqi - Energies, 2022 - mdpi.com
To mitigate the fast-growing demand of electrical energy, the use of renewable energy
resources, eg, solar and wind, can offer an environmentally friendly and sustainable …

Hybrid Active Damping Combining Capacitor Current Feedback and Point of Common Coupling Voltage Feedforward for LCL-Type Grid-Connected Inverter

Y He, X Wang, X Ruan, D Pan… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Both the capacitor-current-feedback (CCF) active damping and the point of common
coupling (PCC) voltage feedforward can provide damping for the LCL-type grid-connected …

Selective harmonic current rejection for virtual oscillator controlled grid-forming voltage source converters

MA Awal, H Yu, I Husain, W Yu… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Virtual oscillator control (VOC) is a nonlinear grid-forming controller that simultaneously
achieves the functionality of output voltage control and primary control layers in a power …

Observer based generalized active damping for voltage source converters with LCL filters

MA Awal, L Della Flora, I Husain - IEEE Transactions on Power …, 2021 - ieeexplore.ieee.org
An observer-based active damping (AD) controller is proposed along with a unified design
and implementation framework for LCL-equipped voltage source converters. The AD …

Enhancing power quality of high‐speed railway traction converters by fully integrated T‐LCL filter

M Al‐Barashi, X Meng, Z Liu, MSR Saeed… - IET Power …, 2023 - Wiley Online Library
Modulating the traction converters produces current harmonics at the switching frequencies
and their multiples. These harmonics should be minimized to meet the network …

Active resonance damping and harmonics compensation in distributed generation based islanded microgrids

A Saim, A Houari, M Ait-Ahmed, M Machmoum… - Electric Power Systems …, 2021 - Elsevier
The development of distributed generation based microgrids with high penetration of
electronically interfaced systems shows great interest in various applications. These systems …

Droop and oscillator based grid-forming converter controls: A comparative performance analysis

MA Awal, H Yu, S Lukic, I Husain - Frontiers in Energy Research, 2020 - frontiersin.org
Two distinct approaches, one droop-based phasor-domain modeled and the other non-
linear oscillator-based time-domain modeled, have emerged for the analysis and control of …

Magnetic integrated double-trap filter utilizing the mutual inductance for reducing current harmonics in high-speed railway traction inverters

M Al-Barashi, Y Wang, B Lan, MS Bhutta - Scientific Reports, 2024 - nature.com
Current harmonics are generated at the switching frequency and its multiples when the
traction converters are modulated. To address this, multi-trap filters are introduced, which …

Robust control based on linear matrix inequalities criterion of single phase distributed electrical energy systems operating in islanded and grid-connected modes

AEM Bouzid, H Chaoui, M Zerrougui, SB Elghali… - Applied Energy, 2021 - Elsevier
In this paper, a control strategy of a voltage source inverter with LCL filter in distributed
electrical energy systems in both operation modes is proposed for microgrids environment …