Robust tracking composite nonlinear feedback controller design for time-delay uncertain systems in the presence of input saturation

V Ghaffari, S Mobayen, S ud Din, T Rojsiraphisal… - ISA transactions, 2022 - Elsevier
In this study, a robust control technique is investigated for the reference tracking of uncertain
time-delayed systems in the existence of the actuator saturation. Due to emerging of some …

Guaranteed cost robust output feedback control design for fractional-order uncertain neutral delay systems

ZS Aghayan, A Alfi, Y Mousavi, IB Kucukdemiral… - Chaos, Solitons & …, 2022 - Elsevier
This paper investigates the stabilization of uncertain neutral-type delay fractional systems.
Both static and dynamic output feedback control design methods are proposed. A …

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 …

Command-filtered compound FAT learning control of fractional-order nonlinear systems with input delay and external disturbances

J Keighobadi, SMA Pahnehkolaei, A Alfi… - Nonlinear …, 2022 - Springer
This paper presents a function approximation technique (FAT) including a fractional-order
(FO) compound learning controller in the framework of backstepping algorithm. The …

Multi-objective optimal antiwindup compensation of discrete-time nonlinear systems under input saturation

F Iqbal, M Rehan, M Hussain, I Ahmed… - Arabian Journal for …, 2024 - Springer
This paper deals with the discrete-time antiwindup compensator (AWC) synthesis for
nonlinear discrete-time systems under input saturation. The proposed method considers the …

Delay-dependent and order-dependent LMI-based sliding mode H∞ control for variable fractional order uncertain differential systems with time-varying delay and …

C Wang, X Zhou, X Shi, Y Jin - Journal of the Franklin Institute, 2022 - Elsevier
This paper concentrates on the sliding mode H∞ control for variable fractional order
uncertain differential systems with time-varying delay and external disturbance by using the …

LMI-based delayed output feedback controller design for a class of fractional-order neutral-type delay systems using guaranteed cost control approach

ZS Aghayan, A Alfi, AM Lopes - Entropy, 2022 - mdpi.com
In this research work, we deal with the stabilization of uncertain fractional-order neutral
systems with delayed input. To tackle this problem, the guaranteed cost control method is …

[HTML][HTML] Disturbance observer-based delayed robust feedback control design for a class of uncertain variable fractional-order systems: Order-dependent and delay …

ZS Aghayan, A Alfi, AM Lopes - ISA transactions, 2023 - Elsevier
This work addresses the stabilization of variable fractional-order (VFO) neutral-type systems
with structure perturbations and unknown disturbance signals using the feedback control …

Criteria for stability and stabilization of variable fractional-order uncertain neutral systems with time-varying delay: Delay-dependent analysis

ZS Aghayan, A Alfi, Y Mousavi… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This brief focuses on the stability and stabilization of variable fractional-order neutral
systems (VFONS) with time-varying delays and time-varying structured uncertainties. Via the …

Modified equivalent input disturbance estimator-based active disturbance rejection for fractional-order TS fuzzy stochastic systems

S Mohanapriya, CAC Sweety, T Satheesh… - Chaos, Solitons & …, 2024 - Elsevier
With the aid of the modified equivalent-input-disturbance estimator approach, the problems
of unified tracking and disturbance rejection control are scrutinized for fractional-order TS …