Robust stability of uncertain fractional order systems of neutral type with distributed delays and control input saturation

ZS Aghayan, A Alfi, JAT Machado - ISA transactions, 2021 - Elsevier
Time delay occurs naturally due to the limited bandwidth of any real-world system. However,
this problem can deteriorate the system performance and can even result in system …

Guaranteed cost-based feedback control design for fractional-order neutral systems with input-delayed and nonlinear perturbations

ZS Aghayan, A Alfi, JAT Machado - ISA transactions, 2022 - Elsevier
Time delay in actuators is mainly caused by electrical and mechanical components. The
effect is visible in the system response particularly when changing in the input command …

Robust stability analysis of uncertain fractional order neutral-type delay nonlinear systems with actuator saturation

ZS Aghayan, A Alfi, JAT Machado - Applied Mathematical Modelling, 2021 - Elsevier
In this paper, we study the robust stability of uncertain fractional order (FO) nonlinear
systems having neutral-type delay and input saturation. From the Lyapunov–Krasovskii …

LMI-based stability analysis of fractional order systems of neutral type with time varying delays under actuator saturation

ZS Aghayan, A Alfi, JAT Machado - Computational and Applied …, 2021 - Springer
This article addresses the stability of uncertain fractional order systems of neutral type under
actuator saturation. Some criteria regarding the asymptotic robust stability of such type of …

Design of robust H∞ controllers for congestion control in data networks

N El Fezazi, F El Haoussi, EH Tissir… - Journal of the Franklin …, 2017 - Elsevier
A novel approach for internet congestion control is presented here, using a static feedback
law. A congestion controller for Network TCP/IP Routers is derived, to ensure stability for a …

Anti-windup compensator synthesis for sampled-data delay systems

O Lamrabet, EH Tissir, F El Haoussi - Circuits, Systems, and Signal …, 2019 - Springer
This paper deals with the problem of synthesizing an anti-windup compensator for time-
delay systems subject to actuator saturation, and uncertain sampling period with the known …

Using input delay approach for synthesizing an anti-windup compensator to AQM in TCP/IP networks

O Lamrabet, N El Fezazi, F El Haoussi… - … technologies for signal …, 2017 - ieeexplore.ieee.org
In this paper, input delay theory is used as a key tool to design an effective anti-windup
compensator which is applied to active queue management (AQM) at router to avoid …

Stability analysis of fractional order neutral‐type systems considering time varying delays, nonlinear perturbations, and input saturation

ZS Aghayan, A Alfi… - … Methods in the Applied …, 2020 - Wiley Online Library
This article investigates the robust stability of fractional order neutral‐type systems involving
nonlinear perturbations and time varying delays in the presence of input saturation. Design …

Multiclass AQM on a TCP/IP router: A control theory approach

N El Fezazi, F El Haoussi, EH Tissir… - … Journal of Robust …, 2019 - Wiley Online Library
Active queue management (AQM) is a well‐known technique to improve routing
performance under congested traffic conditions. It is often deployed to regulate queue sizes …

[PDF][PDF] Robust stabilization using a sampled-data strategy of uncertain neutral state-delayed systems subject to input limitations

N El Fezazi, F El Haoussi, EH Tissir… - International Journal of …, 2018 - sciendo.com
Stabilization of neutral systems with state delay is considered in the presence of uncertainty
and input limitations in magnitude. The proposed solution is based on simultaneously …