Author
Driss Mehdi
Other affiliations: University of Sfax
Bio: Driss Mehdi is an academic researcher from University of Poitiers. The author has contributed to research in topics: Control theory & Linear matrix inequality. The author has an hindex of 16, co-authored 147 publications receiving 1243 citations. Previous affiliations of Driss Mehdi include University of Sfax.
Papers published on a yearly basis
Papers
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TL;DR: The polytopic uncertainty type is considered in this work and a new alternative to design static or dynamic output feedback controllers is developed for the certain and uncertain systems.
Abstract: In this paper we deal with the class of uncertain discrete-time linear systems. The polytopic uncertainty type is considered in this work. For the certain and uncertain systems a new alternative to design static or dynamic output feedback controllers is developed. The design of the corresponding controller is formulated as an LMI problem that includes some slack variables. For the feasibility of the LMI problem, the controller is obtained by simple matrix calculation. The proposed design is performed into two steps. The first step is devoted to a classical state feedback controller design whereas the second one is the solution of the LMI problem.
128 citations
TL;DR: In this article, the authors proposed an advanced energy management strategy for a stand-alone hybrid energy system, which includes a photovoltaic panel, a fuel cell, an electrolyzer, a battery bank and a supercapacitor.
76 citations
TL;DR: In this paper, the authors considered the problem of robust stability and robust stabilization for uncertain continuous singular systems with multiple time-varying delays, where the parametric uncertainty is assumed to be norm bounded.
Abstract: This paper deals with the problem of robust stability and robust stabilization for uncertain continuous singular systems with multiple time-varying delays. The parametric uncertainty is assumed to be norm bounded. The purpose of the robust stability problem is to give conditions such that the uncertain singular system is regular, impulse free, and stable for all admissible uncertainties. The purpose of the robust stabilization problem is to design a feedback control law such that the resulting closed-loop system is robustly stable. This problem is solved via generalized quadratic stability approach. A strict linear matrix inequality (LMI) design approach is developed. Finally, a numerical example is provided to demonstrate the application of the proposed method.
64 citations
TL;DR: This note is devoted to the stability analysis of linear two-dimensional systems described by continuous, discrete or mixed Roesser models and the main contribution is that the approach is very general and the criteria, under certain hypothesis, are not conservative.
Abstract: This note is devoted to the stability analysis of linear two-dimensional systems described by continuous, discrete or mixed Roesser models. Commonly used polynomial-based tests of stability are reduced to that of solving a set of linear matrix inequalities. The main contribution is that the approach is very general and the criteria, under certain hypothesis, are not conservative.
58 citations
TL;DR: In this paper, the authors proposed a new necessary and sufficient condition in terms of a strict linear matrix inequality (LMI) for a nominal continuous descriptor system to be admissible (stable, regular, and impulse-free) based on this, the statefeedback admissibility problem is solved and the solution is extended to the case of uncertain descriptor systems.
Abstract: This paper deals with the problems of robust stability and stabilization for uncertain continuous descriptor systems. We propose a new necessary and sufficient condition in terms of a strict linear matrix inequality (LMI) for a nominal continuous descriptor system to be admissible (stable, regular, and impulse-free). Based on this, the state-feedback admissibility problem is solved and the solution is extended to the case of uncertain descriptor systems. Finally, numerical examples are given to illustrate the results.
41 citations
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TL;DR: Simple but powerful criteria of stability are presented for both continuous-time and discrete-time systems and using these criteria, stability can be checked in a closed loop Bode plot, making it easy to design the system for robustness.
334 citations
TL;DR: This paper comprehensively reviews the state of the art of HESSs system for MG applications and presents a general outlook of developing HESS industry.
Abstract: Energy storages introduce many advantages such as balancing generation and demand, power quality improvement, smoothing the renewable resource’s intermittency, and enabling ancillary services like frequency and voltage regulation in microgrid (MG) operation. Hybrid energy storage systems (HESSs) characterized by coupling of two or more energy storage technologies are emerged as a solution to achieve the desired performance by combining the appropriate features of different technologies. A single ESS technology cannot fulfill the desired operation due to its limited capability and potency in terms of lifespan, cost, energy and power density, and dynamic response. Hence, different configurations of HESSs considering storage type, interface, control method, and the provided service have been proposed in the literature. This paper comprehensively reviews the state of the art of HESSs system for MG applications and presents a general outlook of developing HESS industry. Important aspects of HESS utilization in MGs including capacity sizing methods, power converter topologies for HESS interface, architecture, controlling, and energy management of HESS in MGs are reviewed and classified. An economic analysis along with design methodology is also included to point out the HESS from investor and distribution systems engineers view. Regarding literature review and available shortcomings, future trends of HESS in MGs are proposed.
327 citations
TL;DR: Criteria for verifying robust stability are formulated as feasibility problems over a set of frequency-dependent linear matrix inequalities and can be equivalently formulated as semi-definite programs (SDP) using Kalman-Yakubovich-Popov lemma.
286 citations
TL;DR: In this article, a delay-dependent bounded real lemma (BRL) is established without using model transformation and bounding techniques on the related cross product terms, and a delaydependent condition for the existence of a state feedback controller, which ensures asymptotic stability and a prescribed H"~ performance level of the closed-loop systems for all admissible uncertainties, is proposed in terms of a linear matrix inequality (LMI).
281 citations
01 Jan 2016
TL;DR: The two dimensional signal and image processing is universally compatible with any devices to read and is available in the book collection an online access to it is set as public so you can download it instantly.
Abstract: Thank you for downloading two dimensional signal and image processing. As you may know, people have look hundreds times for their chosen novels like this two dimensional signal and image processing, but end up in malicious downloads. Rather than enjoying a good book with a cup of coffee in the afternoon, instead they juggled with some infectious virus inside their computer. two dimensional signal and image processing is available in our book collection an online access to it is set as public so you can download it instantly. Our digital library spans in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Kindly say, the two dimensional signal and image processing is universally compatible with any devices to read.
253 citations