Publications Scientifiques
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Item Direct Drive Permanent Magnet Synchronous Generator: Design, Modeling, and Control for Wind Energy Applications(2024) Larabi, Zina; Ghedamsi, Kaci; Aouzellag, DjamalThe prominent trend in wind turbine technology centers on the adoption of direct-drive permanent magnet synchronous generators (DD-PMSG), a choice driven by their capacity to deliver superior efficiency through the elimination of gearboxes.This paper presents a comprehensive exploration of the design, modeling, and control aspects of a DD-PMSG intended for harnessing wind energy conversion. Initially, the geometrical design of the generator is meticulously carried out, adhering to predefined technical specifications and constraints. Subsequently, an in-depth internal modeling, focusing on the electromagnetic behavior of the designed generator, is executed using finite element analysis (FEA) through the Ansys Maxwell RMXpert software. Finally, the external modeling and control system integration of the designed generator, connected to the grid through power electronic converters, are simulated using the Matlab/Simulink software suite. The resulting findings underscore the efficacy and viability of the proposed generator for wind turbine applications, affirming its potential to enhance wind energy conversion systemsItem Design and manufacturing of a novel compact 2.4 GHz LPF using a DGS-DMS combination and quasi octagonal resonators for radar and GPS applications(2019) Boutejdar, Ahmed; Challal, Mouloud; Das, Sudipta; El Hani, SoumiaIn this paper, a new compact microstrip low-pass filter (LPF) with ultra-wide stopband characteristics is presented. The combinations of DGS-DMS along with quasi octagonal resonators are employed in the design of the proposed filter to achieve compact size and ultra-wide stopband suppression level. The proposed filter has been designed, simulated, optimized and tested. The design procedure is validated using the commercial full-wave EM MoM simulator Microwave Office. Simulated as well as measured results of low-pass filter exhibit sharp roll-off (ξ) of 19 dB/GHz and creating transmission zero at around 7.8 GHz with attenuation level -54 dB. The measurement results show good agreement with the simulations. The cutoff frequency of the proposed low-pass filter is 2.4 GHz with the insertion loss less than 0.3 dB. The ultra wide stop band with over 20 dB attenuation extended from 3.42 GHz to 12 GHz. The spurious passband suppression up to six harmonics (5fc) is achieved for the proposed design. The addition of two parasitics DGS elements in the ground plane leads to suppression of the undesired harmonics and thus to improve the stopband. The size of the whole structure is less as (0.44λgx0.26λg) with λg = 68 mm. The proposed filter is useful for microwave L band, GPS system, and RADAR applicationsItem Design and thinning of linear and planar antenna arrays using a binary teaching learning optimizer(POLISH ACADEMY OF SCIENCES, 2016) Recioui, AbdelmadjidItem Design and fabrication of a novel quadruple-Band monopole antenna using a U-DGS and open-Loop-Ring resonators(2017) Boutejdar, Ahmed; Challal, Mouloud; Bennani, Saad Dosse; Mouhouche, Faiza; Djafri, KahinaIn this Article, a novel quadruple-band microstrip patch antenna is proposed for the systems operating at quad-band applications. The antenna structure is composed of modified rectangular patch antenna with a U-shaped defected ground structure (DGS) unit and two parasitic elements (open-loop-ring resonators) to serve as a coupling-bridge. The proposed antenna with a total size of 31×33 mm2 is fabricated and tested. The measured result indicates that the designed antenna has impedance bandwidths for 10 dB return loss reach about 180 MHz (4.4–4.58 GHz), 200 MHz (5.4–5.6 GHz), 1100 MHz (7.2–8.3 GHz), and 700 MHz (9.6–10.3 GHz), which meet the requirements of the wireless local area network (WLAN), worldwide interoperability for microwave access (WiMAX), C and X bands applications. Good agreement is obtained between measurement and simulation resultsItem Helicopter flight control compensator design(2017) Yaici, Malika; Hariche, Kamel; Clarke, TimItem Design and fabrication of wide and deep rejection band microstrip low-pass filter(IOP Publishing, 2017) Challal, Mouloud; Badaoui, A.; Hachour, F.Item Scale factor development of gas turbines design by meridian flow analysis(2012) Bendjaima, Belkacem; Benhamou, Amina; Smail, RachidItem Feasibility study of date (Phoenix dactylifera L.) fruit syrup-based natural jelly using central composite design(Springer, 2014) Benali, Sonia; Benamara, Salem; Bigan, Muriel; Madani, KhodirItem A survey of GF (2m) multipliers on FPGA(IEEE, 2015) Haichour, Amina Selma; Hamadouche, M’hamedItem Design and simulation of InGaN p-n junction solar cell(Hindawi Publishing Corporation, 2015) Mesrane, Abdelfettah; Rahmoune, F.; Mahrane, A.; Oulebsir, A.The tunability of the InGaN band gap energy over a wide range provides a good spectral match to sunlight, making it a suitable material for photovoltaic solar cells. The main objective of this work is to design and simulate the optimal InGaN single-junction solar cell. For more accurate results and best configuration, the optical properties and the physical models such as the Fermi-Dirac statistics, Auger and Shockley-Read-Hall recombination, and the doping and temperature-dependent mobility model were taken into account in simulations. The single-junction In0.622Ga0.378N (Eg = 1.39 eV) solar cell is the optimal structure found. It exhibits, under normalized conditions (AM1.5G, 0.1 W/cm2, and 300 K), the following electrical parameters: J sc = 32.6791 mA/cm2, V oc = 0.94091 volts, FF = 86.2343%, and η = 26.5056 %. It was noticed that the minority carrier lifetime and the surface recombination velocity have an important effect on the solar cell performance. Furthermore, the investigation results show that the In0.622Ga0.378N solar cell efficiency was inversely proportional with the temperature