Rachid Outbib

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The lead-acid battery, although known since strong a long time, are today even studied in an intensive way because of their economic interest bound to their use in the automotive and the renewable energies sectors. In this paper, the principle of the lead-acid battery is presented. A simple, fast, and effective equivalent circuit model structure for(More)
This paper gives some new stability sufficient conditions. It presents an extension of the classical Lyapunov theory by considering Lyapunov functions which are nonnegative semidefinite instead of positive definite. Several examples are presented to illustrate the various theorems and an application to the feedback stabilization problem of a nonlinear(More)
In this paper, a parallel simulation to analyze the thermal behavior of proton exchange membrane fuel cells (PEMFC), using Unified Parallel C (UPC) is presented. PEMFCs are considered as very promising alternative solution for energy generations in the future for stationary and mobile applications. In particular, they are the most favored fuel cell (FC)(More)
In this note we address the problem of the simultaneous estimation of the states and unknown inputs for a class of non linear chaotic systems. This problem became during the last decade one of the attractive research area in communication systems since it can be used to assure synchronization and input recovery, in particular, for chaotic systems. The main(More)
In this paper, a Fuel Cell (FC) Maximum Power Point Tracking (MPPT) with fuel flow optimization is developed. The aim of this study is to extract the maximum power from a FC at different fuel flow rates and to protect the FC from over-current and voltage collapses across terminals. The system is composed of a tracker with a buck converter able to change the(More)
The aim of the paper is to present a new result on the control of boost converter. More precisely, it deals in with the case where the converter is placed between a traction battery and a 42V DC link. The behavior of the boost converter is modeled using state variable and the control strategy is based on sliding mode with integral. The experimental test is(More)