Browsing by Author "Aibeche, Abderrazak"

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    Analyse et diagnostic de puissance appliqués dans la commande sans capteur de la machine synchrone à aimants permanents (MSAP)
    (2016) Aibeche, Abderrazak
    L'objectif de cette thèse est le développement des méthodes d'analyse et de diagnostic appliquées sur la commande avec/sans capteur de la machine synchrone à aimant permanent (MSAP) et plus particulièrement au développement des algorithmes en temps réel pour la détection, la localisation et la reconfiguration des défauts appliqués dans un système électrique, composé d'une machine synchrone à aimant permanent couplée à une génératrice à courant continu, alimentée par un convertisseur statique (redresseur + onduleur) via une source de tension triphasée. Deux classes de défauts ont été considérées. Les défauts liés aux interrupteurs de puissance (convertisseurs statiques DC/AC), et les défauts liés aux capteurs, de courant, de tension du bus continu, et de vitesse/position. Des solutions ont été proposées pour répondre aux exigences concernant les défauts de capteurs électriques et mécaniques (courant, tension, vitesse/position). Principalement deux algorithmes de détection, d'isolation et de reconfiguration d'un défaut de capteur ont été développés. Le premier algorithme est basé sur l'extraction des composantes directe et inverse, des trois courants de charge, pour la détection et l'isolation d'un éventuel défaut de capteur de courant et la reconfiguration du système. Le deuxième est un algorithme global basé sur l'élaboration d'un observateur à mode glissant pour la reconstruction des grandeurs électriques et mécanique (4 capteurs de courant, capteur du bus continu, capteur de vitesse). Les performances des algorithmes proposés pour le diagnostic des défauts liés aux interrupteurs et capteurs ont été validées expérimentalement sur les deux plateformes temps réel RT-Lab et dSPACE DS1104
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    A dspace dsp control platform for v/f controlled induction motor drive and parameters identification
    (2011) Akroum, Hamza; Kidouche, M.; Aibeche, Abderrazak
    This paper presents a full digital implementation of open loop and closed loop Volt-per-Hertz (V/F) Controlled Induction Motor Drive with dSPACE DS 1104 Hardware/Software and Matlab/Simulink environment for educational purpose. A feature of this environment is a simple user interface, which requires a basic knowledge of Matlab/Simulink for designing the controller and motor parameter identification. Advances in Computer, Communication, Control and Automation Advances in Computer, Communication, Control and Automation Look Inside Other actions Export citation About this Book Reprints and Permissions Add to Papers Share Share this content on Facebook Share this content on Twitter Share this content on LinkedIn
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    Dual randomized pulse width modulation technique for buck converter fed by photovoltaic source
    (2018) BOUDOUDA, Aimad; BOUDJERDA, NASSERDINE; Aibeche, Abderrazak; BOUZIDA, AHCENE
    Randomized pulse width modulation (RPWM) is a technique used to spread the power spectrum over a wide frequency range; it aims to reduce the amplitudes of the power harmonics and consequently the conducted electromagnetic interferences (EMI). In this paper, a dual RPWM (DRPWM) scheme for the buck converter fed by a photovoltaic (PV) source, operating in discontinuous conduction mode (DCM) is proposed. It combines two simple schemes, random pulse position (RPPM) and random switching frequency modulation (RSFM). First, the modulating principle is presented and then, a general mathematical model of power spectral density (PSD) of the input current is derived and validated for the three schemes. The PSD analysis of the input current is carried out in order to show the advantage of the proposed scheme compared to the simple RPWM schemes. An application on a buck converter fed by photovoltaic source confirms that the proposed technique does not affect the solar PV buck converter performances, in the other side the randomization effect is confirmed and analyzed in steady-state characteristics of the buck converter, which is advantageous in reducing (EMI) in both input (PV source) and output (load). 1. INTRODUCTION
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    Dynamic angle stability of an industrial turbo generator connected in power system
    (AIP Publishing, 2014) Grouni, Said; Hallak, M.; Aibeche, Abderrazak; Ramdani, Ammar; Bouallegue, K.
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    Dynamic eccentricity fault diagnosis in induction motors using finite element method and experimental tests
    (Inder Science Online, 2017) Bouzida, Ahcene; Abdelli, Radia; Touhami, Omar; Aibeche, Abderrazak
    This paper presents the dynamic eccentricity (DE) in the squirrel cage induction machine obtained by the simulation using finite element method (FEM) and the experimental tests. Motor current signature analysis (MCSA) through the power spectral density (PSD) is used to monitor the low frequency components related to the rotor faults. In order to generalise the study, a comparison was performed between faulty machines and healthy, under different load conditions. The experimental tests show the encountered difficulties in the detection of the dynamic eccentricity under various load conditions because the spectral representation shows the existence of low frequency components for the healthy case, which are superimposed with the indicator components. These low frequency components offer an alternative way to the monitoring of eccentricity air-gap when the load is balanced
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    Dynamic eccentricity fault diagnosis in induction motors using finite element method and experimental tests
    (Inderscience, 2017) Bouzida, Ahcene; Abdelli, Radia; Touhami, Omar; Aibeche, Abderrazak
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    Dynamic flux observation on variable parameters in field oriented control for induction machine drives
    (Springer Berlin Heidelberg, 2013) Grouni, S.; Aibeche, Abderrazak; Akroum, Hamza
    Controlled position of induction machine without mechanical sensor has reached a very high stage of development a good dynamic performance response. However, the accuracy of the rotor position and torque need high estimation technical flux behavior in control drives. This paper deals with an improvement dynamic rotor flux observation for induction machine drives based on real parameters variation in field oriented control strategy. However, the control flux permitting the minimization power loss energy. This work presents the implementation of real flux control behavior in real time for induction machine based on digital signal processing. The Dspace DS1104 controller board is used in the implementation. The main technical control vector is applied under practical currents, voltages, position tracking measurements. All advantages of the controlmodels are illustrated by simulation and experimental results for induction machine (3 kW/380V) drives
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    Experimental research of diagnostic measurement tests for power transformers
    (2013) Aibeche, Abderrazak; Grouni, S.; Akroum, Hamza; Boualegue, K.
    This paper deals with experimental research of practical diagnostics measurement tests in industrial power transformers. In practical research we analyze the quality insulation diagnostic. The transformers system insulation is evaluated by using diagnostics of the dissipation factor in data industrial transformer (250 MVA, 15.75/220 kV) application. The insulation quality of power transformer is determined by multiple measurement tests of the insulation resistance winding, capacitance and dielectric dissipation factor. The measurement tests of dissipation factor given at the end of the production cycle not only assures that the quality of the transformer meets the specified levels but also provides insight into the subtleties of the manufacturing process. This paper gives an experimental research of measurement tests setup of dielectric dissipation factor that used GST and Guard mode techniques of earthling systems transformers insulation
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    Experimental results of sensorless rotor field oriented control using MRAS
    (2014) Akroum, Hamza; Kidouche, M.; Aibeche, Abderrazak
    This work deals with design and implementation of sensorless rotor field oriented control using model reference adaptive system (MRAS) of induction motor (IM) drives. SVPWM, using an injected Zero-Sequence Signal (ZSS), is used for controlling the motor. Proportional Integral Controllers with antiwindup are designed. A 3Kw, 3-phase, 50Hz, 1420rpm, induction motor and a dSPACE DS1104 hardware/software are used to carry out the control application. The experimental results show the effectiveness and the limitation of the control method
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    Hybrid adaptive Backstepping-Sliding mode control design for Non-linear Under-Actuated systems
    (Springer, 2022) Doghmane, Mohamed Zinelabidine; Kidouche, Madjid; Riache, Samah; Aibeche, Abderrazak
    This paper focuses on studying the inverted pendulum as a case study of under-actuated systems, which has two degrees of freedom and a single actuator. The Lagrangian dynamic model of the system is non-linear and its internal dynamic is not asymptotically stable. The control of this system has been the subject to many studies because the dynamics of the inverted pendulum is closer to those of more complex systems. Besides, this mechanism is a low cost tool for implementation and practical illustration of new control approaches. For the stabilization of the system, it is first necessarily to bring the pendulum from its equilibrium stable position (pendulum pointing downwards) to its unstable equilibrium position. In this study, different control approaches were applied to the system such as sliding mode control, Backstepping method, and their combination. These studied techniques are very implementable for under-actuated systems, where their algorithms are designed with an appropriate choice of parameters. Moreover, the obtained results are very interesting; they show the effectiveness of the proposed hybrid approach in improving the performances, namely, the controller robustness and convergence stability. The hybrid control system has been designed for both stabilization and external disturbances rejection. Hence, the main contribution of this study is the hybridization of adaptive backstepping approach with sliding mode control for under-actuated systems
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    Modeling methods used in bioenergy production processes: A review
    (Techno press, 2020) Akroum, Hamza; Akroum-Amrouche, Dahbia; Aibeche, Abderrazak
    The enhancements of bioenergy production effectiveness require the comprehensively experimental study of several parameters affecting these bioprocesses. The interpretation of the obtained experimental results and the estimation of optimum yield are extremely complicated such as misinterpreting the results of an experiment. The use of mathematical modeling and statistical experimental designs can consistently supply the predictions of the potential yield and the identification of defining parameters and also the understanding of key relationships between factors and responses. This paper summarizes several mathematical models used to achieve an adequate overall and maximal production yield and rate, to screen, to optimize, to identify, to describe and to provide useful information for the effect of several factors on bioenergy production processes. The usefulness, the validity and, the feasibility of each strategy for studying and optimizing the bioenergy-producing processes were discussed and confirmed by the good correlation between predicted and measured values
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    Scalar control of induction motor drives using dSPACE DS1104
    (2013) Akroum, Hamza; Kidouche, M.; Aibeche, Abderrazak
    This paper deals with design and implementation of Voltage/Frequency (V/f) control of induction motor (IM) drives. Sinusoidal PWM (SPWM) and non sinusoidal PWM, using an injected Zero-Sequence Signal (ZSS), are used for controlling the motor. An analytical approach is used to design the Proportional Integral Controller with antiwindup. The design procedure uses only the name plate data. A 3Kw, 3-phase, 50Hz, 1420rpm, induction motor and a dSPACE DS1104 hardware/software are used to carry out the control application. The experimental results show the effectiveness of the control method
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    Sensor fault detection, localization, and system reconfiguration with a sliding mode observer and adaptive threshold of PMSM
    (2016) Aibeche, Abderrazak; Kidouche, Madjid
    This study deals with an on-line software fault detection, localization, and system reconfiguration method for electrical system drives composed of three-phase AC/DC/AC converters and three-phase permanent magnet synchronous machine (PMSM) drives. Current sensor failure (outage), speed/position sensor loss (disconnection), and damaged DC-link voltage sensor are considered faults. The occurrence of these faults in PMSM drive systems degrades system performance and affects the safety, maintenance, and service continuity of the electrical system drives. The proposed method is based on the monitoring signals of “abc” currents, DC-link voltage, and rotor speed/position using a measurement chain. The listed signals are analyzed and evaluated with the generated residuals and threshold values obtained from a Sliding Mode Current-Speed-DC-link Voltage Observer (SMCSVO) to acquire an on-line fault decision. The novelty of the method is the faults diagnosis algorithm that combines the use of SMCSVO and adaptive thresholds; thus, the number of false alarms is reduced, and the reliability and robustness of the fault detection system are guaranteed. Furthermore, the proposed algorithm’s performance is experimentally analyzed and tested in real time using a dSPACE DS 1104 digital signal processor board
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    Stability improvement of power system with connected wind turbine
    (Aimad Boudouda, 2020) Bouzida, Ahcene; Abdelli, Radia; Aibeche, Abderrazak; Boudouda, Aimad Boudouda
    The penetration of doubly fed induction generator (DFIG) into the power grid has become an important concern for power system engineers today. Voltage stability is an important factor to maintain the wind farm in service during some abnormal operating conditions. This paper deals with the integration of synchronous static compensator (STATCOM) to overcome the voltage stability issue for the power systems with connected wind turbine. A dynamic model for the DFIG has been presented and the integration of a STATCOM to maintain stable voltage has been studied during a low voltage conditions. The developed system is simulated and the results demonstrate that the good control of STATCOM enhances voltage regulation as well as transient stability of the DFIG during three phase faults. Many verifications based on time-domain simulations have been presented in order to show the STATCOM capability in improving transient stability of the power system