Publications Scientifiques
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Item Photovoltaic Panel Parameter Estimation Enhancement Using a Modified Quasi-Opposition-Based Killer Whale Optimization Technique(Multidisciplinary Digital Publishing Institute, 2025) Touabi, Cilina; Ouadi, Abderrahmane; Bentarzi, Hamid; Recioui, AbdelmadjidPhotovoltaic (PV) energy generation has seen rapid growth in recent years due to its sustainability and environmental benefits. However, accurately identifying PV panel parameters is crucial for enhancing system performance, especially under varying environmental conditions. This study presents an enhanced approach for estimating PV panel parameters using a Modified Quasi-Opposition-Based Killer Whale Optimization (MQOB-KWO) technique. The research aims to improve parameter extraction accuracy by optimizing the one-diode model (ODM), a widely used representation of PV cells, using a modified metaheuristic optimization technique. The proposed algorithm leverages a Quasi-Opposition-Based Learning (QOBL) mechanism to enhance search efficiency and convergence speed. The methodology involves implementing the MQOB-KWO in MATLAB R2021a and evaluating its effectiveness through experimental I-V data from two unlike photovoltaic panels. The findings are contrasted to established optimization techniques from the literature, such as the original Killer Whale Optimization (KWO), Improved Opposition-Based Particle Swarm Optimization (IOB-PSO), Improved Cuckoo Search Algorithm (ImCSA), and Chaotic Improved Artificial Bee Colony (CIABC). The findings demonstrate that the proposed MQOB-KWO achieves superior accuracy with the lowest Root Mean Square Error (RMSE) compared to other methods, and the lowest error rates (Root Mean Square Error—RMSE, and Integral Absolute Error—IAE) compared to the original KWO, resulting in a better value of the coefficient of determination (R2 ), hence effectively capturing PV module characteristics. Additionally, the algorithm shows fast convergence, making it suitable for real-time PV system modeling. The study confirms that the proposed optimization technique is a reliable and efficient tool for improving PV parameter estimation, contributing to better system efficiency and operational performanceItem An investigation of different PMU phasor estimation techniques based on DFT using MATLAB(IEEE, 2020) Mahboubi, Meriem; Bentarzi, Hamid; Ouadi, AbderrahmanePhasor Measurement Unit (PMU) is the essential component in the modern power grid which plays a significant role in monitoring, control and protection of the power system networks in real time. PMUs are able to provide time stamped synchronized measurements of voltage and current phasors using Global Positioning System (GPS) satellites, in microseconds, to maintain the power system network free of faults and hence healthy. Different phasor estimation techniques such as Kalman filter and Discrete Fourier transform (DFT) may be used by PMUs to estimate phasors. In this research work, the implementation of non-recursive, recursive and smart DFT techniques have been investigated for modeling the PMU using MATLAB. Then, mathematical differences among these algorithms are briefly highlighted as well as advantages and drawbacks of eachItem Measurement and monitoring system of ac machines using LabVIEW(IEEE, 2017) Kahlouche, Ahmed; Bouroudi, Yassine; Ouadi, AbderrahmaneThe paper presents a system that uses Laboratory Virtual Instrument Engineering Workbench (LabVIEW) software to monitor, and to control the state of an electrical machine depending on user imposed limits. In this system, the real-time variables of an electrical machine are measured and transferred to a controller (PC) through Data Acquisition Card (DAQ). The NI USB 6009 DAQ is selected for this project in order to provide precise measurement inputs, these measurements allow us to continuously observe, and evaluate the operating parameters quantities of the machine using the LabVIEW environment that handles processing and presentation of the calculations, and trip the circuit automatically if these quantities exceed a safe value by using a selected line on the DAQ to control a relay arrangement interfaced with the power grid's contactItem A new framework of smart auto-recloser(IEEE, 2018) Bentarzi, Hamid; Ouadi, Abderrahmane; Abdelkader, AbdelmoumeneAlmost all type of faults that occur in distribution network are self-clearing faults, so the protective relays must not break the power circuit and interrupting the power supply to the consumers. Therefore, a protective device such as auto-recloser is more suitable for this situation. An auto-recloser is a circuit breaker associated with a control circuit that may automatically re-close the circuit breaker after opening it due to the fault detection. Since more than 80% of the faults are self clearing in their nature hence, power outage time can be reduced if the reclosing function is automated and carefully planned. In this paper, a new frame work of smart auto-recloser has been implemented in PC associated with NI7851 Card using the Labview. To validate the present work, the performance of developed device has been tested by Power System Simulator under different conditions.Item A new frame work for quadrilateral distance relay(Inderscience, 2014) Ouadi, Abderrahmane; Bentarzi, HamidIn conventional transmission line protection, a three–zone stepped directional distance scheme is used to provide the primary as well as remote backup protection. The voltage and current phasors are needed by the distance relay for determining the impedance. In this paper, a new frame work is proposed using DSP kit, which acquires real-time signals of the currents, processes them digitally and outputs tripping signal to the circuit breaker. Algorithms of quadrilateraldistance protection function has been implemented first in PC using the Simulink/Matlab and then transferred into DSP Kit. To validate the present work, the performance of developed relay is tested by signals generated by Simulink/MATLAB simulator under different conditions. The obtained simulation results are satisfactoryItem Distance relay reliability enhancement using false trip root cause analysis(Springer, 2017) Zitouni, Abdelkader; Ouadi, Abderrahmane; Bentarzi, Hamid; Chafai, MahfoudItem Distance protective system performance enhancement using optimized digital filter(2011) Bentarzi, Hamid; Ouadi, Abderrahmane; Zitouni, AbdelkaderItem Microcontroller based protective relay testing system(World Scientific and Engineering Academy and Society (WSEAS), 2011) Ouadi, Abderrahmane; Bentarzi, Hamid; Chafai, Mahfoud; Zitouni, AbdelkaderItem PC based testing system for protective relay(IEEE, 2013) Chafai, Mahfoud; Bentarzi, Hamid; Ouadi, Abderrahmane; Zitouni, Abdelkader; Recioui, AbdelmadjidItem Optimal multiobjective design of digital filters using taguchi optimization technique(2014) Ouadi, Abderrahmane; Bentarzi, Hamid; Recioui, AbdelmadjidThe multiobjective design of digital filters using the powerful Taguchi optimization technique is considered in this paper. This relatively new optimization tool has been recently introduced to the field of engineering and is based on orthogonal arrays. It is characterized by its robustness, immunity to local optima trapping, relative fast convergence and ease of implementation. The objectives of filter design include matching some desired frequency response while having minimum linear phase; hence, reducing the time response. The results demonstrate that the proposed problem solving approach blended with the use of the Taguchi optimization technique produced filters that fulfill the desired characteristics and are of practical use