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var str = 'Rotor Fault Detection in Squirrel Cage Induction Motors using MCSA and DWT Techniques';
document.write(linkifyHtml(str, options));
]]>
Broken rotor bar faults]]>
Discrete wavelet transform]]>
Motor current signature analysis]]>
This article presents the fault detection of broken rotor bar (BRB) faults in squirrel cage induction motors (SCIMs). This work applied two diagnostic methods on stator current signal. It is necessary to verify the machine health to avoid any catastrophic damage. The first method uses the fast Fourier transform (FFT) which is generally called motor current signature analysis (MCSA). We carefully verified the spectral content of the stator current to detect BRB fault. The new harmonics allows us to take a good decision about BRB fault. The second method is based on the discrete wavelet transform (DWT). This technique is widely used in the diagnosis field of rotating machinery. According to DWT method, we used the mean square error (MSE) as a good indicator. An experimental test with different conditions of the induction motor has been performed. The experimental results have been exploited using MCSA and DWT methods to achieve a good decision.]]>
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var str = 'BESSOUS, Noureddine';
document.write(linkifyHtml(str, options));
]]>
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var str = 'SBAA, Salim';
document.write(linkifyHtml(str, options));
]]>
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var str = 'PUSCA, Remus';
document.write(linkifyHtml(str, options));
]]>
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var str = 'ROMARY, Raphaël';
document.write(linkifyHtml(str, options));
]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 41-48]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 Noureddine BESSOUS, Salim SBAA, Remus PUSCA, Raphaël ROMARY]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/7/108]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/7]]>
10.51485/ajss.v6i1.7]]>
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var str = 'Voltage Sensorless Direct Power Control for PWM Rectifier Under Distorted Network Using Improved Virtual Flux Estimator';
document.write(linkifyHtml(str, options));
]]>
PWM-Rectifier]]>
Direct power control (DPC)]]>
Space vector modulation (SVM)]]>
Virtual flux (VF)]]>
Second-order generalized integrator (SOGI)]]>
Generally, AC-DC conversion system in the power system use the diode-bridge based rectifiers that cannot be reversible and causes high current distortion. Besides, they reduce the power factor and energy quality. recently, the application of three-phase pulse width modulation (PWM) rectifier has been risen quickly due to breakthrough advancement in the power devices. This converter offers sinusoidal input currents and minimized harmonic distortion and unity power factor. This work presents an improved sensorless control for performance enhancement purpose of the PWM-rectifier. The proposed control strategy uses the virtual flux principle with second-order generalized integrator (SOGI) in order to overcome the accompanying drawbacks of using pure integrator of low-pass filters for estimation. The integration of improved virtual flux estimator with direct power control saves the cost of using many voltage sensors which can increase the reliability and effectivity of the control system. Moreover, it improves control robustness and against highly distorted network. The different proposed approaches have been investigated through simulation using MATLAB/Simulink software.]]>
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var str = 'DJABALI , Sarah';
document.write(linkifyHtml(str, options));
]]>
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var str = 'AIT HAMOU ALI, Melissa';
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]]>
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var str = 'AMMAR, Abdelkarim';
document.write(linkifyHtml(str, options));
]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 32-40]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 Sarah DJABALI , Melissa AIT HAMOU ALI, Abdelkarim AMMAR]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/6/107]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/6]]>
10.51485/ajss.v6i1.6]]>
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};
var str = 'Hydraulic Model of a Lifting and Handling Manipulator';
document.write(linkifyHtml(str, options));
]]>
Keywords: CAD modification, trajectories, Pick & Place (Signals input-output).]]>
Abstract: This publication concerns hydraulic robots used in flexible production lines, in fact in hydraulicsystems, energy is transmitted and controlled by means of a pressurized fluid circulating in a circuit. whichform a new series of applications pick & place (Patents: N° 9507799623622 AL 1996088,9622856 AL19960801, 9620818 AL 19960711. . .). Circuit diagrams are an aid facilitating the understanding, study anddescription of production cells. The new, very simple structure of the hydraulic robot is a novelty in Algeria andhas been adapted to the data of a production line made up of seven production lines. In order to avoid anyconfusion and error during development, production, installation and maintenance and in order to transformthis production line into a flexible cell, it appears essential that these diagrams be linked to a standardizedrepresentation.Keywords: CAD modification, trajectories, Pick & Place (Signals input-output).]]>
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};
var str = 'BENMISRA, ABDELKADER';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'BELAIDI, Abderahmane';
document.write(linkifyHtml(str, options));
]]>
var options = {
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};
var str = 'BELAIDI, Hadjira';
document.write(linkifyHtml(str, options));
]]>
var options = {
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};
var str = 'BRAHIMI, Abdelhalim';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'IRKI, Moufida';
document.write(linkifyHtml(str, options));
]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 2 (2021): Vol.6 issue2; 67-74]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i2]]>
Laboratory of Signals and Systems, Algeria]]>
2021-06-30]]>
Copyright (c) 2021 ABDELKADER BENMISRA, ABDERAHMANE , HADJIRA, ABDELHALIM, MOUFIDA]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/5/114]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/5]]>
10.51485/ajss.v6i2.5]]>
var options = {
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}
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}
};
var str = 'Development of Instrumentation Adapted by C.M.M.S. Dedicate to Poly-articulated Mechanisms: (Computer-assisted Maintenance Management System)';
document.write(linkifyHtml(str, options));
]]>
Synthesis of mechanisms,Measurement and Instrumentation, CAD Prototype.]]>
Abstract: In this article three study phases have been discussed: Landing phase of a civil transport aircraft,when part of the flow entering the reactors is redirected by thrust reversers. Phase of the functional andtechnical study of which reflects on the aircraft maintenance component, without forgetting the phase ofsynthesis of the landing system mechanisms. The approach presented relates to the description of thedifferent instruments and languages used for the control of vibratory behavior in a maintenance plan. Activedevices are used mainly in systems where the excitation acts permanently on the system and the minimizationof the amplitude of the vibrations is the dominant criterion. This is the reason why it is important to plan andcontrol the technical aspect which will contain the landing system from the point of view of geometry, torques,positions, speeds and accelerations, and trajectories from the mechanism design phase.Keywords: Synthesis of mechanisms, Measurement and Instrumentation, CAD Prototype
]]>
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};
var str = 'BENMISRA, ABDELKADER';
document.write(linkifyHtml(str, options));
]]>
var options = {
attributes: {
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};
var str = 'BELAIDI, Hadjira';
document.write(linkifyHtml(str, options));
]]>
var options = {
attributes: {
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};
var str = 'BELAIDI, Abderahmane';
document.write(linkifyHtml(str, options));
]]>
var options = {
attributes: {
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};
var str = 'BRAHIMI, Abdelhalim';
document.write(linkifyHtml(str, options));
]]>
var options = {
attributes: {
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var str = 'IRKI, Moufida';
document.write(linkifyHtml(str, options));
]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 61-66]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 ABDELKADER BENMISRA, Hadjira BELAIDI, Abderahmane BELAIDI, Abdelhalim BRAHIMI, Moufida IRKI]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/4/112]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/4]]>
10.51485/ajss.v6i1.4]]>
var options = {
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}
};
var str = 'NBTI Fast Electrical Characterization in pMOSFET Devices';
document.write(linkifyHtml(str, options));
]]>
MOSFET reliability]]>
NBTI]]>
I_ds-V_gs fast characterization]]>
MSM method]]>
extraction methods]]>
To measure the entire characteristic of p-MOSFET, we have implemented the fast Ids-Vgs technique. The latter is used to study NBTI phenomenon with measure-stress-measure method, for electric field 5MV/cm < Eox < 7.5MV/cm, and temperatures 27°C < Ts < 120°C. Measurement time has reached 10 us, and a stress-measure delay (switching time) of about a hundred of milliseconds was obtained. However, strengths and weaknesses of the implemented technique have been discussed. Furthermore, the extraction methods: transconductance (Gm), subthreshold slope (SS), and mid-gap (MG), have been implemented and discussed as well. NBTI parameter i.e. Delta Vth, n, gamma and Ea were extracted and compared to other results. A time exponent n of 0.149 has been touched. Activation energy Ea = 0.039 eV and a field factor gamma = 0.41 MV/cm for a stress time ts < 10 s have been obtained.]]>
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var str = 'MESSAOUD, DhiaElhak';
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]]>
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};
var str = 'Djezzar, Boualem';
document.write(linkifyHtml(str, options));
]]>
var options = {
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};
var str = 'Benabdelmoumene, Abdelmadjid';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'Boubaaya, Mohamed';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'Zatout, Boumediene';
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]]>
var options = {
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var str = 'Zitouni, Abdelkader';
document.write(linkifyHtml(str, options));
]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 24-31]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 DhiaElhak MESSAOUD, Boualem Djezzar, Abdelmadjid Benabdelmoumene, Mohamed Boubaaya, Boumediene Zatout, Abdelkader Zitouni]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/3/109]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/3]]>
10.51485/ajss.v6i1.3]]>
var options = {
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return value;
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}
};
var str = 'Evaluation of Hot Carrier Impact on Lateral-DMOS with LOCOS feature';
document.write(linkifyHtml(str, options));
]]>
LDMOS]]>
Hot Carrier Stress]]>
LOCOS]]>
Flicker noise]]>
Hot carrier stress is evaluated on a laterally diffused MOSFET (LDMOS) by TCAD simulation. The device under test is obtained from process simulation under a 1µm CMOS flow available at CDTA. The n-type transistor uses the LOCOS (local oxidation of silicon) and single RESURF (reduced surface field) features. Using the trap degradation model, degradation over time and different biases, the shift of threshold voltage VTH, ON-state resistance RON, saturation current IDsat, and device lifetime are extracted. The shifts were found to be manageable, they have a single process mechanism and are due to hot electrons in our case. But, flicker noise assessment under the same stress shows noticeable instabilities.]]>
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var str = 'HOUADEF, Ali';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'DJEZZAR, Boualem';
document.write(linkifyHtml(str, options));
]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 16-23]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 Ali HOUADEF, Boualem DJEZZAR]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/2/105]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/2]]>
10.51485/ajss.v6i1.2]]>
var options = {
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var str = 'Design of high throughput 2.7 Tbps DWDM System under MIMO-FSO Channel as Back-up Optical Link for 5G Networks';
document.write(linkifyHtml(str, options));
]]>
FSO]]>
MIMO]]>
DWDM]]>
EDFA]]>
BER]]>
Q-Factor]]>
OSNR]]>
The present article aims to investigate and evaluate the performances of DWDM (or Dense Wavelength Division Multiplexed) system under MIMO-FSO (or multiple input multiple output-free space optical) channel. However, the proposed system is configured and simulated in the worst-case meteorological conditions, and we base here on the variation of the attenuation coefficient. In this article, the proposed system is devoted to 90 users, every user exploits 30 Gbps. So, the total capacity of system is 90x30 Gbps. In addition, the use of MIMO technique in FSO channel ensures us the stability of the proposed system in the worst-case meteorological conditions and especially when the system exploits a high throughput. To assess the acceptable performance levels of the proposed system, it is necessary to use the following criteria: the minimum bit error rate (or BER) performance, the maximum quality factor (or Q-Factor) and the optical signal to noise ratio (or OSNR) performance. Finally, the proposed system in this paper provides a promising solution for 5G networks as back-up optical link.]]>
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var str = 'Adardour, Haroun Errachid';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'KAMECHE , Samir';
document.write(linkifyHtml(str, options));
]]>
var options = {
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};
var str = 'HADJILA , Mourad';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'IRID , Sidi Mohammed Hadj';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'HACHEMI , Mohammed Hicham';
document.write(linkifyHtml(str, options));
]]>
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var str = 'KOURDI , Zakarya';
document.write(linkifyHtml(str, options));
]]>
Algerian Journal of Signals and Systems ; Vol. 6 No. 1 (2021): Algerian Journal of Signals and Systems; 1-15]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v6i1]]>
Laboratory of Signals and Systems, Algeria]]>
2021-03-31]]>
Copyright (c) 2021 Haroun Errachid Adardour, Samir KAMECHE , Mourad HADJILA , Sidi Mohammed Hadj IRID , Mohammed Hicham HACHEMI , Zakarya KOURDI]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/1/106]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/1]]>
10.51485/ajss.v6i1.1]]>
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var str = 'Energy Management System in Smart Micro-Grid';
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Energy Management System (EMS)]]>
Smart Micro-Grid (SMG)]]>
Stateflow (SF)]]>
StateMachine (SM)]]>
This paper focuses on discussing an energy management system (EMS) for a smart microgrid integrating multiple renewable sources. The task of the EMS is to efficiently balance power generation and consumption by controlling various energy sources, including photovoltaic systems, energy storage units, engine generator set and the utility grid. An EMS optimizes power flow between the microgrid components and keeps the micro-grid stable, by using different control strategies. In this microgrid, the PV system serves as the primary energy source, while the other sources of electrical energy act as backups. The energy management system prioritizes supplying load demand from either the PV system or the other sources, with load shedding during peak hours if the supplied energy is insufficient. The approaches based on StateMachine and StateFlow are discussed in this paper for enhancing the energy management system's performance.]]>
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var str = 'BENTARZI, Hamid';
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]]>
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var str = 'OUADI, Abderrahmane';
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var str = 'ZITOUNI, Abdelkader';
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]]>
Algerian Journal of Signals and Systems ; Vol. 8 No. 2 (2023): AJSS; 67-75]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v8i2]]>
Laboratory of Signals and Systems, Algeria]]>
2023-12-31]]>
Copyright (c) 2023 Hamid BENTARZI, Abderrahmane OUADI, Abdelkader ZITOUNI]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/196/165]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/196]]>
10.51485/ajss.v8i2.196]]>
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var str = 'Technical and Economic Feasibility Study of a Hybrid Hydrogen-based Renewable Energy System';
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]]>
Renewable sources]]>
Hydrogen energy]]>
dimensioning]]>
Technical and economic Study]]>
HOMER]]>
Traditional electrical grids rely heavily on Hydrocarbons. The latter turn out to be a significant cause of environmental damage, as well as being rapidly depleted. Remote regions and settlements cannot benefit from this kind of electric energy as they are disconnected from the electrical network. Hybrid renewable energy systems (HRES) proved as being a great option in such cases. The objective of this article is to construct and optimize an autonomous hybrid renewable power plant to meet the demand for electricity for an isolated drilling location in Adrar region in the south of Algeria. To address the issue of intermittent power from wind and solar sources, a hydrogen-based arrangement is included in the already existing hybrid renewable energy system. The system modeling and running are carried out using HOMER package to identify the best cost-effective HRES arrangements. ]]>
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var str = 'RECIOUI, Abdelmadjid';
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var str = 'DEKHANDJI, Fatma Zohra';
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]]>
Algerian Journal of Signals and Systems ; Vol. 8 No. 2 (2023): AJSS; 41-54]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v8i2]]>
Laboratory of Signals and Systems, Algeria]]>
2023-12-31]]>
Copyright (c) 2023 Abdelmadjid RECIOUI, Fatma Zohra DEKHANDJI]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/195/162]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/195]]>
10.51485/ajss.v8i2.195]]>
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var str = 'Proposal of a Process for selection solar cells Nanosatellite';
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PEDAGO-SAT]]>
solar cell]]>
procedures]]>
qualification for aerospace]]>
low-cost]]>
By the PEDAGOSAT project we aim to democratize all educational activities related to CubeSat-class: nanosatellite, from physics through engineering, technical achievements, integration, to testing and operations to the greatest number of students. The key idea is to eventually have our academic nanosatellite training platform offering an open source opportunity to Algerians universities, and having the capacity to cover all engineer training areas relating to "small satellites". As part of this project, some satellite subsystems, test and emulation facilities will be realized, processes and procedures for testing and integration related to space technology will be addressed, implemented and even mastered. The presented work is part of the development of the on-board power system, and covers the selection of solar cells for the manufacture of solar panels of this satellite. The main source of energy present in space is solar energy, it a continuous and inexhaustible source that a satellite can. In satellite we use a solar panel to ensure its operation. In the dimensioning of a satellite, it is essential to identify these electrical power requirements named “power budget analysis”. Indeed, this makes it possible to determine the number of cells and/solar panels to be installed to guarantee the power continuity of the satellite in sunlight phase of its orbit by recharging its batteries and feeding equipment’s. During all the mission duration; from the beginning of life (BOL) after the launch to it deorbits (EOL) to disintegrate in the atmosphere. For the PEDAGO-SAT as for other satellites, it will be necessary to verify the parameters and physical characteristics of the solar cells/panels according to certified procedures and methodologies in order to be able to pronounce on their qualification for aerospace use. In this context, we propose a low-cost process revision to be able to carry out qualification tests with an accessible facility in the university labs. This revision will also concern the development of homemade means and software that fit the investments that may be made by the Algerian research and academic facilities. As illustrated in this paper a performance evaluation of low-cost solar cells was done using the developed solution and the selected cells will be integrated in the solar panels of PEDAGOSAT.]]>
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var str = 'LARIBI, Asma';
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var str = 'BOUTTE , Aissa';
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var str = 'BELAIDI, El Yazid';
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var str = 'AIT AMIRAT, Mokhtar';
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]]>
Algerian Journal of Signals and Systems ; Vol. 8 No. 2 (2023): AJSS; 33-40]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v8i2]]>
Laboratory of Signals and Systems, Algeria]]>
2023-12-31]]>
Copyright (c) 2023 Asma LARIBI, Aissa BOUTTE , El Yazid BELAIDI, Mokhtar AIT AMIRAT]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/194/161]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/194]]>
10.51485/ajss.v8i2.194]]>