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var str = 'Impact of Converter Topology on the Shunt Active Power Filter Systems Efficiency';
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]]>
Multi-level (NPC) inverter]]>
Shunt active power filter]]>
Power quality improvement]]>
Fuzzy logic control]]>
Harmonic current compensation]]>
Total Harmonic Distortion (THD)]]>
IEE-519 standard norms]]>
This paper presents the performance of shunt active power filters (Shunt APFs) which can compensate harmonic currents generated by no-linear load based on five and seven-level neural point clamped (NPC) inverters. Multilevel inverters are currently being investigated and used in several industrial applications. Their advantages include the capability to reduce the harmonic content and decrease the voltage or current ratings of the semiconductors. On the other side, fuzzy techniques are successfully employed in various industrial applications; they represent a good alternative to traditional control systems. To benefit of all these advantages an efficient control scheme for five and seven-level Shunt APF based on multi-carrier pulse width modulation (MC-PWM) and fuzzy control approaches are adopted in this work. The fuzzy controller is designed to improve compensation capability of shunt APF by adjusting the error using a fuzzy rule. The control strategy to identify the current reference uses synchronous detection method (SMD), this technique is easy to implement and achieves good performances. The numerical simulation results carried with MATLAB-Simulink and SimPowerSystems Toolbox show the effectiveness of the proposed systems and confirm the superiority of the seven-level shunt APF compared to five-level configuration system.]]>
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var str = 'CHENNAI, Salim';
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]]>
Algerian Journal of Signals and Systems ; Vol. 8 No. 2 (2023): AJSS; 59-66]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v8i2]]>
Laboratory of Signals and Systems, Algeria]]>
2023-12-31]]>
Copyright (c) 2023 Salim CHENNAI]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/193/164]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/193]]>
10.51485/ajss.v8i2.193]]>
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var str = 'Symmetrical L-slots Reconfigurable Triple band Antenna for Mutiband Applications';
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]]>
CPW-fed, multiband antenna, reconfigurable]]>
This paper introduces a novel compact reconfigurable antenna that utilizes monopole technology and tunable frequencies through switch control. The antenna is fed by a coplanar waveguide (CPW) and features a unique patch design with two L-shaped slots and integrated switches. This inventive design enables remarkable reconfigurability, allowing the antenna to operate within the frequency ranges of [3.8-3.93 GHz], [5.05-5.3 GHz], and [7-7.5 GHz]. These frequency ranges are strategically chosen to align with specific application requirements. The antenna also boasts an almost omnidirectional radiation pattern. The experimental outcomes highlight the efficacy of the proposed antenna, which occupies a compact footprint of 34x35.4 mm², making it particularly well-suited for applications requiring multiband functionality.
Keywords: CPW-fed, multiband antenna, reconfigurable.]]>
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var str = 'fertas, fouad';
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]]>
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var str = 'fertas, khelil';
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var str = 'mouloud , CHALLAL';
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]]>
Algerian Journal of Signals and Systems ; Vol. 8 No. 2 (2023): AJSS; 76-80]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v8i2]]>
Laboratory of Signals and Systems, Algeria]]>
2023-12-31]]>
Copyright (c) 2023 fouad fertas, khelil fertas, CHALLAL mouloud]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/192/166]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/192]]>
10.51485/ajss.v8i2.192]]>
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var str = 'An Overview of Software-Defined Radio Technology in CubeSat Communications';
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]]>
Small satellites, ground stations, Software Defined Radios (SDRs), software-based operations]]>
Small satellites are becoming more popular because they are cost-effective, easy to assemble, and use commercially available parts. However, traditional ground stations that communicate with small satellites require a lot of hardware and are expensive to build. This makes it challenging to get the most out of small satellites' information. Software Defined Radios (SDRs) have been developed to reduce the cost of these ground stations by doing many of the tasks in software. Many universities and organizations are developing SDR ground stations to communicate with satellites in different orbits. Communication with satellites is critical to their development and operation. This paper proposes a ground station that uses SDR technology to communicate with one or more small satellites in Low Earth Orbit (LEO). The station is cost-effective, portable, and easily scaled, allowing it to acquire data from satellites.]]>
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var str = 'KHOUANE, Boulanouar';
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]]>
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var str = 'BELBEKRI , Nasreddine';
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]]>
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var str = 'BENMANSOUR, J. Eddine';
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]]>
Algerian Journal of Signals and Systems ; Vol. 8 No. 2 (2023): AJSS; 55-58]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v8i2]]>
Laboratory of Signals and Systems, Algeria]]>
2023-12-31]]>
Copyright (c) 2023 Boulanouar KHOUANE, Nasreddine BELBEKRI , J. Eddine BENMANSOUR]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/189/163]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/189]]>
10.51485/ajss.v8i2.189]]>
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var str = 'Design and simulation of Demodulator Based BELL-202 standard for NanoSatellite Communication Sub-system';
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]]>
Educational Nano-Sat]]>
PEDAGO-SAT]]>
BEL-202]]>
AFSK]]>
communication sub-system]]>
In recent years a trend of using CubeSat-class nanosatellites for commercial and scientific missions has taken the lead; this is due to the advantage of the available and low-cost products on the market without need for a large development and infrastructure investments. On our behalf, the advanced approach is to build a CubeSat platform dedicated to academic and engineering training on the different satellite subsystems, including development of a transponder based on products and software/hardware solutions accessible to the research and academic community in order to promote its use to engage in cross-team development on the basis of this platform and allowing the aggregation of a know-how.
In this context, the work presented in this paper, handles partly the problematic by a proposal of the communication system design, intended to be integrated on our platform; with a particular focus on the implementation of an FSK modulator based on the Bell 202 standard. The reported development project will include simulations, implantation and the validation tests performed to achieve our first prototype.]]>
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var str = 'Mohamed belkacem, yasmina';
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]]>
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var str = 'boutte, aissa';
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]]>
Algerian Journal of Signals and Systems ; Vol. 8 No. 1 (2023); 28-32]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v8i1]]>
Laboratory of Signals and Systems, Algeria]]>
2023-06-30]]>
Copyright (c) 2023 yasmina Mohamed belkacem, aissa boutte]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/186/160]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/186]]>
10.51485/ajss.v8i1.186]]>
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var str = 'Smart Energy Management for a Microgrid System Based on Echo State Networks─Gray Wolf Optimizer Hybrid Algorithm';
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]]>
Smart energy management]]>
microgrid]]>
echo state network]]>
gray wolf optimizer]]>
This work present a smart energy management system for a microgrid based on a hybrid intelligent adaptive algorithm composed of an echo state network and gray wolf optimizer techniques. The microgrid connected to the grid is composed of renewable sources such as photovoltaic and wind conversion associated with a hybrid battery hydrogen fuel generation storage system. An adaptive intelligent control unit is developed to manage the power flow between the hybrid power sources and other devices in the system. The controller chooses the optimal operating mode of power sources ensuring the continuous supply of the injecting power in the grid and maintaining the battery state of charge at acceptable levels as the hydrogen tank level. Complete mathematical modeling for the proposed system is implemented in MATLAB/Simulink to track the microgrid performance. Numerical and graphical results are presented to show the effectiveness of the proposed control system]]>
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var str = 'Babouri, Khalida';
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]]>
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var str = 'Abadlia, Issam';
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]]>
Algerian Journal of Signals and Systems ; Vol. 8 No. 1 (2023); 21-27]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v8i1]]>
Laboratory of Signals and Systems, Algeria]]>
2023-06-30]]>
Copyright (c) 2023 Khalida Babouri, Issam Abadlia]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/182/159]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/182]]>
10.51485/ajss.v8i1.182]]>
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var str = 'PD adaptive controller method for a three-axis stabilized rigid satellite attitude system';
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]]>
Attitude control]]>
Rigid spacecraft]]>
uncertain Disturbances]]>
Adaptive algorithm]]>
PD controller]]>
This paper deals with the attitude tracking control problem of rigid satellite with uncertainties of disturbances. An adaptive proportional derivative controller (PD) is proposed to deal with the influence of external disturbance in the attitude controller. The uncertain disturbances can be estimated through an adaptive algorithm and can be compensated in the proposed controller. The tracking error and the closed-loop system stability are ensured based on the Lyapunov analysis. using the representation of the spacecraft dynamics especially the quaternion properties.Simulation results can clearly illustrate the feasibility, the effectiveness and the performance of the planned control strategies, which have been validated by the Monte Carlo method, the results can be extended to other adaptive attitude control laws.]]>
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var str = 'benmansour, jalal eddine';
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]]>
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var str = 'Benfriha, Elhassen';
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]]>
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var str = 'bellar, abdelatif';
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]]>
Algerian Journal of Signals and Systems ; Vol. 8 No. 1 (2023); 15-20]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v8i1]]>
Laboratory of Signals and Systems, Algeria]]>
2023-06-30]]>
Copyright (c) 2023 jalal eddine benmansour, Elhassen Benfriha, abdelatif bellar]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/181/158]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/181]]>
10.51485/ajss.v8i1.181]]>
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var str = 'DFIG Wind Turbine Controlled by Sliding Mode and Fuzzy-Sliding Control Modes';
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]]>
WECs, DFIG, Sliding mode control, Fuzzy sliding mode control, RsC, GsC.]]>
Many non-linear controllers have been used to improve system performances and robustness of double fed induction machine (DFIG) based wind turbines like sliding mode control (SMC). However, this type of controller is less efficient due to a sign function that can lead to chattering phenomenon. To overcome this deficiency, the function is replaced by fuzzy logic control (FLC). This is what is proposed in this paper which deals with doubly fed induction generator (DFIG) based wind turbine conversion system (WECs) by sliding mode control and fuzzy sliding mode control (FSMC). The system control have been applied to the back to back converters that connect rotor windings to the grid, For the rotor side converter (RsC), we have presented sliding mode control, and fuzzy sliding mode control to monitor active and reactive powers independently, when the grid side converter (GsC) was set to keep a constant DC voltage with a desired power factor. The effectiveness of the proposed control systems is tested using Matlab/Simulink software under a wind speed fluctuation and parameters variation. The simulation results showed that the FSMC is more robust and has better dynamic performances than the SMC control]]>
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var str = 'BENFDILA, Arezki';
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]]>
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var str = 'BOUGUERRA, Zahira';
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]]>
Algerian Journal of Signals and Systems ; Vol. 8 No. 1 (2023); 8-14]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v8i1]]>
Laboratory of Signals and Systems, Algeria]]>
2023-06-30]]>
Copyright (c) 2023 Arezki BENFDILA, Zahira BOUGUERRA]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/180/157]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/180]]>
10.51485/ajss.v8i1.180]]>
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var str = 'Impact of Voltage Temperature Coefficient on power prediction of four type silicon photovoltaic module technologies installed in real conditions in the north-central of Algeria';
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]]>
photovoltaic module]]>
temperature coefficient]]>
outdoor]]>
solar irradiation]]>
In this paper, attention has been paid to the importance of knowing the exact values of the temperature coefficients used in modeling of four different types of photovoltaic modules these modules are; monocrystalline silicon m-Si, polycrystalline silicon p-Si, amorphous silicon a-Si, and micromorphous silicon thin film μm-Si installed in outdoor conditions in north-central Algeria. The value of the temperature coefficients provided by the module manufacturer in the datasheet is obtained under specific conditions called the standard test conditions STC, but in reality, these conditions vary significantly if the modules are operated in real climatic conditions, this will lead us to recalculate these coefficients again to improve our model using a database collected over a period of one year obtained by our characterization bench of PV modules using a two diodes model. A comparison was made between the simulation and the experimental data of the selected modules using the new values of the calculated temperature and those given at STC conditions, the obtained results show that the use of these new calculated temperature coefficients leads to a reduction of the the Mean Relative error MRE on the annual power from 2 to 7% depending on the PV module's technology which shows the importance of knowing the real value of the temperature coefficients that will be used in the PV module and system modeling.]]>
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var str = 'meflah, Aissa';
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]]>
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var str = 'Benzina, Amel';
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]]>
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var str = 'Boucena, Lyna';
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]]>
var options = {
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var str = 'Smara, Zoubeyr';
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]]>
var options = {
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var str = 'Chekired, Fathia';
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]]>
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var str = 'Abdelkader, Aissat';
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]]>
Algerian Journal of Signals and Systems ; Vol. 8 No. 1 (2023); 1-7]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v8i1]]>
Laboratory of Signals and Systems, Algeria]]>
2023-06-30]]>
Copyright (c) 2023 Aissa meflah, Amel Benzina, Lyna Boucena, Zoubeyr Smara, Fathia Chekired, Aissat Abdelkader]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/179/156]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/179]]>
10.51485/ajss.v8i1.179]]>
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var str = 'Model predictive controller for a microrobot navigating in a vascular channel by following a trajectory generated with a joystick device';
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]]>
Microrobot]]>
Joystick device]]>
Model predictive controller (MPC)]]>
reference trajectory]]>
This article proposes a model predictive control (MPC) for trajectory tracking of a microrobot in a 2D fluidic environment. The reference trajectory is generated using a joystick device and it is estimated using a Luenberger observer. Assuming that the position of the microrobot is measured, the objective is to design an observer-based MPC control capable to track the reference trajectory generated by a joystick device. To optimize the MPC control, we have introduced a quadratic criterion where these parameters are determined to have a specific behavior of the closed loop system. Finally, simulation results are presented here to show the efficiency of the proposed approach
]]>
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var str = 'Meziane , Larbi';
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]]>
var options = {
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var str = 'Guechi , El-Hadi';
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var str = 'Maidi, Ahmed';
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var str = 'Zennir , Youcef';
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]]>
Algerian Journal of Signals and Systems ; Vol. 7 No. 4 (2022); 184-191]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v7i4]]>
Laboratory of Signals and Systems, Algeria]]>
2023-01-14]]>
Copyright (c) 2022 Larbi Meziane , El-Hadi Guechi , Ahmed Miadi, Youcef Zennir , Karim Belahret]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/178/155]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/178]]>
10.51485/ajss.v7i4.178]]>
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var str = 'Different Clustering Methods Applied to Image Processing in Electrical Power System Field';
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Infrared imaging]]>
image segmentation]]>
threshold]]>
clustering algorithm]]>
Temperature is an important indicator of the electrical equipment conditions. An accurate fault diagnosis can be performed by using the temperature profile of the electrical equipment surface. Infrared thermograph has gained more attention and becomes an interesting method in electrical fault diagnosis due to its advantages. This paper presents a review of different methods of image segmentation (clustering algorithms) applied to infrared thermograph which has been used to get useful information from electrical equipment of power system for faults detection, classification and localization.
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var str = 'AICI , Zakia';
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var str = 'Bentarzi, Hamid';
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]]>
Algerian Journal of Signals and Systems ; Vol. 7 No. 4 (2022); 178-183]]>
2676-1548]]>
2543-3792]]>
10.51485/ajss.v7i4]]>
Laboratory of Signals and Systems, Algeria]]>
2023-01-14]]>
Copyright (c) 2022 Zakia AICI , Hamid Bentarzi]]>
https://creativecommons.org/licenses/by-nc/4.0]]>
https://ajss.dz/index.php/ajss/article/view/177/154]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
Peer-reviewed Article]]>
https://ajss.dz/index.php/ajss/article/view/177]]>
10.51485/ajss.v7i4.177]]>