Conference papers

Permanent URI for this collectionhttps://dspace.univ-soukahras.dz/handle/123456789/214

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Author: search.filters.author.Belgacem MADI

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    On the Adomian Decomposition Method and its Applications to Mechanics
    (5ème Conférence Internationale sur la maintenance et la sécurité Industrielle (CIMISI’2019), 2019) Nedjem Eddine Benchouia; Belgacem MADI; Mohamed Rafik SARI; Azzedine BOUZAOUIT
    In this paper, we review the Adomian decomposition method (ADM). We give a general description of this method and we present some modifications for the standard Adomian decomposition method. Application is made to Blasius problem, a dissipative wave equation, and free vibration of Euler-Bernoulli beam. The results obtained have been discussed and shows the effectiveness of the method.
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    La fiabilité prévisionnelle d’une pile à combustible de type PEMFC
    (International Conference on Maintenance and Industrial Safety CIMSI'2017, 2017-11-21) Nedjem Eddine Benchouia; Belgacem MADI; Mounir BENADJA
    The objective of this paper is to propose a new method for calculating predictive reliability by applying the State Space Method (MEE) to PEMFC fuel cell systems. Our work focuses on estimating the reliability of the PEMFC fuel cell itself applied to components subject to damage, conversion systems (boost, buck), and storage systems.
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    Modeling a photovoltaic pumping system
    (Intternattiionall Semiinar iin Industtriiall Engiineeriing and Applliied Matthemattiics ((ISIEAM''2018), 2018-10-24) Nedjem Eddine Benchouia; Yahia BELLARAGUEB; Belgacem MADI; Mounir BENADJA
    The work presented in this paper concerns the modeling and simulation of a photovoltaic panel intended to drive a motor pump through a DC-AC converter (inverter). In our analysis, we designed a PV system where the PV generator is the isofoton module producing, under standard test conditions (CST), a peak power of 110W, an optimal current of 3.38 A and an optimal voltage of 43.2V. Indeed the characteristic I (V) of the generator depends on the solar illumination and the temperature. These climatic variations cause the fluctuation of the point of maximum power. The simulation results obtained under Matlab / Simulink show the performance of the dynamic behavior of photovoltaic systems. The comparison of the results obtained by simulation with experimental ones is essential.
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    Vector control of a three-level parallel structure UPS powered asynchronous machine
    (5th International Conference on Maintenance and Industrial Safety CIMSI’2019, 2019-12-03) Nedjem Eddine Benchouia; Bilal SOLTANI; Belgacem MADI; Mohamed SAAIDIA
    This work is dedicated to the vector control of the asynchronous machine; with orientation of the rotor flow. This technique makes it possible to decouple the control of the flow from that of the torque, similar to that of the DC machine with separate excitation. Indeed, the direct flow orientation method has been developed for conventional speed control. Through the simulation results obtained, we noted a good behavior of this one for the various tests carried out, however, shortcomings were observed concerning the sensitivity to disturbances of the load torque and their rejection time. But what strongly penalizes it is essentially its low robustness vis-à-vis the variations of the moment of inertia especially compared to those of the rotor inductance. In fact, the speed response is slightly affected, and for the changes in the rotor inductance, the decoupling of the machine deteriorates.