Browsing by Author "Omeiri, Amar"

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    Perturb and Observation MPPT algorithm for the performance of Solar Photovoltaic System
    (University of Eloued جامعة الوادي, 2018-12-10) Ressa, Noureddine; Merabet, Leila; Omeiri, Amar
    The Maximum Power Point Tracking is a technique used in power electronic circuit to improve the efficiency of photovoltaic systems . Several works and many papers have suggested different methods for extracting maximum power point. The aim of this work is to develop and realize the performance of the Photovoltaic system using Perturb and Observe algorithm. The first part of the work is devoted to the study of the components constituting the global photovoltaic system namely: the photovoltaic generator and the DC-DC converter. The PV generator is modelled by the mathematical equations and its current-voltage characteristics and the power-voltage characteristics are simulated taking in to account the temperature and sun's irradiance. The second part is detailed the MPPT method of Perturb and Observe using the DC-DC converters. The simulation results are designed in the MATLAB / SIMULINK environment where demonstrated the efficiency of the photovoltaic system when using Perturb and Observe MPPT algorithm.
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    Predictive Current Controlled Shunt Active Power Filter Working under Unbalanced Supply Conditions
    (University of eloued جامعة الوادي, 2016-10-28) Mesbahi, Nadhir; Ouari, Ahmed; Omeiri, Amar; Bouchikha, Hocine
    This paper has presented a predictive current control method of shunt active power filter (SAPF) under unbalanced supply conditions. Two parts are included: one is the computation of compensating reference current of SAPF and the other is predictive current control for SAPF to track the current reference. The reference current computation method is based on the use of high selectivity filters (HSF). The use of HSF instead of classical extraction filters (low pass filters) allows extracting directly the voltage and current fundamental components in the α-β axis without phase locked loop (PLL). The performance of the proposed algorithm is evaluated by means of computer simulations using Matlab/Simulink.