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Publications
Publications (43)
In this article, we present a novel approach: a fractional-order fuzzy observer, an extension of the Thau-Luenberger observer, specifically designed for nonlinear systems characterized by commensurate non-integer order Takagi-Sugeno models. This work makes significant contributions in two key areas. Firstly, both the activation functions of the mod...
This paper proposes a new design of small-signal model, used in the voltage loop of a solar system. The internal functioning of this system is considered fully unknown at standard test condition (STC) where a corresponding model is completely unavailable. The main idea consists on considering the nonlinear solar system behavior as a black box and o...
This paper solves a ripple problem that is occurred in the photovoltaic power extraction. This last is generated through the direct application of the Maximum Power Point Tracking (MPPT) algorithm, which is used for the voltage regulation of a solar system. This last one includes a KC200GT panel, a resistive load and a DC-DC boost converter. The sw...
This paper solves the ripple issue that occurred when applying the standard Perturb and Observe P&O algorithm on a Renewable Energy Conversion REC system, including a Photovoltaic Generator GPV panel and resistive load. These last are associated with using the DC-DC boost converter, whose duty cycle control must be well controlled under certain cli...
Due to the importance of DC-DC converters in renewable energy systems, researchers face many challenges and difficulties in designing and analyzing models of DC-DC converters and extracting their dynamic equations that are used to design the systems control unit. In this paper, the Buck converter will be modeled using PLECS software. This software...
This paper proposes the Maximum Power Point Tracking MPPT method based on the Incremental Conductance INC algorithm. The primary goal is to prevent the ripple problem that is occurred in the output responses of the solar panel system. This last includes the KC200GT panel system, while using it to supply a resistive load throughout the DC-DC boost c...
Photovoltaic cells are characterized by a silicon material that enables them to directly convert solar energy into electrical energy. The photovoltaic cell operates at the maximum power point MPP, the operating point corresponding to the maximum energy during the day changes non-linearly due to many factors, the most important of which is the chang...
panel performance is maximum at the point, and this point changes according to changing weather conditions, and this affects the output voltage and current of the system, so it is very important to keep track of the maximum power point () in view of these changes, in this paper, a comparison of the two most widely used MPPT algorithms are the pertu...
panel performance is maximum at the point, and this point changes according to changing weather conditions, and this affects the output voltage and current of the system, so it is very important to keep track of the maximum power point () in view of these changes, in this paper, a comparison of the two most widely used MPPT algorithms are the pertu...
Photovoltaic cells are characterized by a silicon material that enables them to directly convert solar energy into electrical energy. The photovoltaic cell operates at the maximum power point MPP, the operating point corresponding to the maximum energy during the day changes non-linearly due to many factors, the most important of which is the chang...
Introduction. Recently, the most desired goal in DC motor control is to achieve a good robustness and tracking dynamic of the set-point reference speed of the feedback control system. Problem. The used model should be as general as possible and consistently represent systems heterogeneous (which may contain electrical, mechanical, thermal, magnetic...
Modellemenin önemi ve çeşitli uygulamalarda acil ihtiyaç duyulması nedeniyle, çeşitli çalışmaları doğru bir şekilde yürütmek için gerçek sistemle uyumlu ve simüle eden doğru bir modelin tasarımı, araştırmacılar için büyük bir zorluk haline gelmiştir. Bu nedenle, bu araştırma, yükü DC-DC dönüştürücü aracılığıyla besleyen fotovoltaik panel KC200GT'de...
This paper proposes the Maximum Power Point Tracking MPPT method based on the Incremental Conductance INC algorithm. The primary goal is to prevent the ripple problem that is occurred in the output responses of the solar panel system. This last includes the KC200GT panel system, while using it to supply a resistive load throughout the DC-DC boost c...
Due to the importance of modeling and the urgent need for it in various applications, the design of an accurate model that simulates and is compatible with the real system to carry out various studies correctly, this has become a great challenge for researchers. Therefore, this research proposes the design of a mathematical model using the method o...
Due to the importance of DC-DC converters in renewable energy systems, researchers face many challenges and difficulties in designing and analyzing models of DC-DC converters and extracting their dynamic equations that are used to design the systems control unit. In this paper, the Buck converter will be modeled using PLECS software. This software...
In this paper, a Tilt Proportional Integral Derivative (TPID) controller is designed to control a DC-DC boost converter in a photovoltaic (PV) system. PV panels have a nonlinear V-I characteristic, so to achieve a desired and fixed voltage level, a power electronic interface is needed. The objective is to optimize the controller parameters from sol...
In this paper, a Tilt Proportional Integral Derivative (TPID) controller is designed to control a DC-DC boost converter in a photovoltaic (PV) system. PV panels have a nonlinear V-I characteristic, so to achieve a desired and fixed voltage level, a power electronic interface is needed. The objective is to optimize the controller parameters from sol...
This paper proposes a new control strategy that combines the standard P &O algorithm with the fuzzy logic mechanism. The objective of implementing the P &O control strategy based on variable-step size is to operate a photovoltaic generator (PVG) at a maximal power point (MPP) using one of the two switches, increasing or decreasing the actual duty c...
This paper presents a new linear model design including the KC200GT photovoltaic generator GPV panel, DC-DC boost converter , and resistive load. The small-signal principle is indeed applied to the configuration connecting these three devices that are previously developed graphically using the Matlab /Simulink software package. This new model desig...
This paper presents a new linear model design including the KC200GT photovoltaic generator GPV panel, DC-DC boost converter, and resistive load. The small-signal principle is indeed applied to the configuration connecting these three devices that
are previously developed graphically using the Matlab�/Simulink software package. This new model design...
This paper presents a new linear model design including the KC200GT photovoltaic generator GPV panel, DC-DC boost converter , and resistive load. The small-signal principle is indeed applied to the configuration connecting these three devices that are previously developed graphically using the Matlab /Simulink software package. This new model desig...
In this paper, a steady-state output power oscillation problem is overcome using the indirect control mode based-Perturb and Observe P&O implementation algorithm. This can be ensured through controlling the duty cycle input of the DC − DC boost converter using the proposed Proportional Integral Derivative PID controller. Their parameters are optimi...
In this paper, a fuzzy sliding mode controller (FSMC) with adaptive gain is proposed for a class of MIMO nonlinear systems. The coupled system can be divided into two different subsystems, each of which can be separated into two sliding surfaces created by the state variables. The integration of these two sliding surfaces requires the introduction...
This paper presents a design of linear state feedback control of DC-DC Boost converters, in order to achieve a particular desired behavior. To guarantee a zero steady state error, we introduce an integral action, which will work out this problem by assuring that the steady state error will end up to zero. If it is supposed that both the voltage and...
In this paper, the linear state feedback control using LQR controller for a DC/DC converter in the case of negative voltages topology is presented in order to achieve a particular desired behavior. To guarantee a zero steady-state error, we introduce an integral action, which will work out this problem by assuring that the steady-state error will e...
This paper focuses on achieving a good trade-off between performance and robustness for a class of uncertainty models including unstructured multiplicative uncertainties. In robust control, the simultaneous improvement of the two secure margins for nominal performances and robust stability using a standard controller structure represents two contra...
In this paper, a synthesis method of robust Fractional Order PID controller for speed motor of permanent magnet synchronous motor. Space Vector Pulse Width Modulation algorithm and quadrature-axis current loop transfer function based upon nominal plant model of the motor are combined with decoupling technology is established. Parameters of the (FOP...
This paper presents modeling and designing of robust multi-loop controllers for the terminal voltage and stator frequency regulations of three-phase self-excited induction generator (SEIG) driven by a prime mover. The lack of the internal functionality of the SEIG system often represents a major challenge for most researchers. This is due to the se...
The most important issue in the use of wind energy conversion systems is to ensure maximum power extraction in terms of efficiency. Therefore, maximum power point tracking algorithms are as important as the maximum power point tracking controller. In this study, maximum power extraction frameworks operating the state-of-the-art optimization methods...
In practical control engineering, fuzzy system-based adaptive control methodologies have received much attention, emerging as promising approaches for controlling highly uncertain and nonlinear dynamical systems. Most of complex dynamic systems include nonlinearities and uncertainties which are difficult to define with mathematical model. Fuzzy Log...
This paper deals with the robust series and parallel fractional-order PID synthesis controllers with the automatic selection of the adjustable performance weights, which are given in the weighted-mixed sensitivity problem. The significant contribution of the paper is to achieve the good trade-off between nominal performances and robust stability fo...
This paper presents the study and simulation of the self-excited induction generator in the wind power production in isolated sites. With this intention, a model of the wind turbine was established. Extremum-seeking control algorithm method by using Maximum Power Point Tracking (MPPT) is proposed control solution aims at driving the average positio...
In this paper, a robustification method of the primary fractional controller is proposed. This novel method uses the adjustable fractional weights on the H∞ mixed-sensitivity problem. It can achieve an enhancement in both nominal performance and robust stability margins for the uncertain plants while respecting the frequency-domain constraints, suc...
In this article, a novel Adaptive Fuzzy Sliding Mode Control (AFSMC) methodology is proposed based on the integration of Sliding Mode Control (SMC) and Adaptive Fuzzy Control (AFC). Using Lyapunov stability theory and Barbalat's lemma, the closed-loop system is proved to be stable and convergence properties of the system is assured. Simulation exam...
Dans ce travail, on a étudié la commande des systèmes non linéaires en utilisant le mode glissant flou dont l’objectif est la stabilisation où la poursuite d’une trajectoire désirée. Après une étude de la commande par logique floue et la commande par mode glissant, les deux techniques sont combinées et utilisées pour la commande des systèmes non li...
