A nonlinear controller design for power conversion units in islanded micro-grids using interconnection and damping assignment tracking control

SM Azimi, S Lotfifard - IEEE Transactions on Sustainable …, 2020 - ieeexplore.ieee.org
Conventional controllers for electronically interfaced distributed generators (EI-DGs) that
utilize droop controllers along with voltage/current proportional-Integral (PI) controllers …

A nonlinear supplementary controller for transient response improvement of distributed generations in micro-grids

A Mojallal, S Lotfifard, SM Azimi - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
This paper proposes a nonlinear supplementary controller for enhancing the transient
response of distributed generations (DGs) in micro-grids. The proposed supplementary …

Supplementary controller for seamless transitions between microgrids operation modes

SM Azimi, S Lotfifard - IEEE Transactions on Smart Grid, 2021 - ieeexplore.ieee.org
This article proposes a supplementary controller for inverter based distributed generations
(DGs) to damp out the power and frequency oscillations that may occur following the change …

Distributed robust cooperative hierarchical control for island microgrids under hijacking attacks based on multiagent systems

A Mirzabeigi, A Kazemy, M Ramezani… - … on Electrical Energy …, 2023 - Wiley Online Library
Today, eliminating the effects of cyber‐attacks is essential for stability and synchronization in
island microgrids. In this article, island microgrid has been investigated from the view of …

Adaptive interconnection and damping assignment passivity-based control of interlinking converter in hybrid AC/DC grids

SM Azimi, M Hamzeh - IEEE Systems Journal, 2020 - ieeexplore.ieee.org
In this article, a nonlinear adaptive control strategy is proposed for a power conversion
system (PCS) based on the interconnection and damping assignment passivity-based …

An effective non-square matrix converter based approach for active power control of multiple DGs in microgrids: experimental implementation

R Sadooghi, T Niknam, M Sheikh… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
In this paper, a new modulation strategy based on the carrier-based switching strategy for
the non-square direct matrix converters (MC) is proposed to control the active power of …

Non‐linear large‐signal stabiliser design for DC micro‐grids

SM Azimi, M Hamzeh… - IET Generation …, 2019 - Wiley Online Library
This study proposes a non‐linear stabiliser to suppress the current/voltage fluctuations of
DC micro‐grids (DC‐MGs) caused by large transients. These transients typically occur …

Optimal controller design for interconnected power networks with predetermined degree of stability

SM Azimi, RA Naghizadeh, AR Kian - IEEE Systems Journal, 2018 - ieeexplore.ieee.org
A novel procedure for the design of an optimal controller with a predetermined degree of
stability to enhance damping of interarea oscillations in interconnected power networks is …

Voltage/current large transient suppression in DC microgrids using local information and active stabilizing capability

SM Azimi, M Hamzeh - IEEE Systems Journal, 2019 - ieeexplore.ieee.org
This paper presents a nonlinear control strategy for the suppression of large voltage-current
transients in a dc microgrid (dc-MG) with a high penetration of constant power loads (CPLs) …

Synchronverter with the Capability of Damping Enhancement for the Suppression of Power and Frequency Oscillations in Inverter-Based Micro-Grids

SM Azimi - Nashriyyah-i Muhandisi-i Barq va Muhandisi-i …, 2022 - ijece.saminatech.ir
Nowadays, due to the advances made in power electronics and the desire to use renewable
energy resources, micro-grids have been developed considerably. One of the challenging …