Messaoud Amairi

TL;DR: In this paper, three frequency-domain design methods are proposed to deal with robust fractional order PID controller design via numerical optimization, which achieve robustness to the variation of some parameters by maintaining the open-loop phase quasi-constant in a pre-specified frequency band.

TL;DR: The FTC, based on a linear state feedback, is designed to compensate the impact of actuator faults on system performance by stabilising the closed-loop system using interval observers.

TL;DR: In interval observers design for linear switched systems, observer gains are computed to ensure the stability of the estimation error and under some changes of coordinates an interval observer is designed.

TL;DR: A new method for validating existence and uniqueness of the solution of an initial value problems for fractional differential equations by an algorithm selecting a stepsize and computing a priori constant enclosure of the solutions is proposed.

TL;DR: The optimal instrumental variable method combined with a nonlinear optimization algorithm is handled to identify the fractional closed-loop transfer function and two techniques are used for model selection the Akaike’s information criterion and the RT2 criterion.