Browsing by Author "Khechekhouche Ali"

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High Voltage Technique
(University of Eloued جامعة الوادي, 2025) Khechekhouche Ali
This book explores the critical aspects of electrical conductivity and insulation, particularly in high-voltage systems. It differentiates between conductive materials (metals like copper and aluminum) and insulating materials (gases, pure water, and dry organic matter), emphasizing the impact of impurities and moisture on conductivity. The abstract highlights the importance of robust insulation design capable of withstanding both normal and overvoltage conditions. A key focus is the phenomenon of insulation failure due to overstressing, where excessive electric fields exceed the dielectric strength of the material. Using air as an example, the text explains how it transitions from an insulator to a conductor at a critical voltage (around 30 kV/cm), leading to flashover, a process analogous to the electrical discharge observed in lightning. The overall theme emphasizes the need for careful consideration of insulation properties and system design to prevent breakdowns and ensure safe operation in high-voltage applications Ce livre explore les aspects critiques de la conductivité et de l'isolation électrique, en particulier dans les systèmes à haute tension. Il établit une distinction entre les matériaux conducteurs (métaux comme le cuivre et l'aluminium) et les matériaux isolants (gaz, eau pure et matière organique sèche), tout en soulignant l'impact des impuretés et de l'humidité sur la conductivité .Le texte met en évidence l'importance d'une conception d'isolation robuste, capable de résister aux conditions de tension normales et aux surtensions anormales. Un point essentiel est le phénomène de défaillance d'isolation due à une surcontrainte, où des champs électriques excessifs dépassent la rigidité diélectrique du matériau. En utilisant l'air comme exemple, le texte explique comment il passe d'un isolant à un conducteur à une tension critique (environ 30 kV/cm), ce qui entraîne un arc électrique, un processus analogue à la décharge électrique observée dans la foudre. Le thème général souligne la nécessité d'un examen attentif des propriétés d'isolation et de la conception du système pour prévenir les pannes et assurer un fonctionnement sûr dans les applications à haute tension
Maximum power point tracking for stand-alone PV system based on artificial intelligence techniques
(University of Eloued, 2023-12-11) Salem Bendouiem; Toumi Djaafar; Djilani Benattous; Khechekhouche Ali; Gassem Abdelmalek
maximum power point tracking (MPPT) algorithm lead an important role in optimization the performance of a photovoltaic (PV) generation systems. To validate the correctness and performance of the MPPT techniques, We have created an fuzzy logic (FLC) controller for the maximum power point tracking (MPPT) of a photovoltaic system and compared it to conventional tracking algorithms Perturb and Observe (P&O) and incremental conductance (INC). The proposed system was simulated and tested successfully by using MATLAB Simulink on a photovoltaic solar panel model. It is demonstrated that the fuzzy logic based MPPT tracking require less time and provide more accurate results under rapidly changing atmospheric conditions. compared to conventional tracking algorithms Perturb and Observe (P&O) and incremental conductance (INC)
Maximum power point tracking for stand-alone PV system based on artificial intelligence techniques
(University of Eloued, 2023-12-11) Salem Bendouiem; Toumi Djaafar; Djilani Benattous; Khechekhouche Ali; Gassem Abdelmalek
maximum power point tracking (MPPT) algorithm lead an important role in optimization the performance of a photovoltaic (PV) generation systems. To validate the correctness and performance of the MPPT techniques, We have created an fuzzy logic (FLC) controller for the maximum power point tracking (MPPT) of a photovoltaic system and compared it to conventional tracking algorithms Perturb and Observe (P&O) and incremental conductance (INC). The proposed system was simulated and tested successfully by using MATLAB Simulink on a photovoltaic solar panel model. It is demonstrated that the fuzzy logic based MPPT tracking require less time and provide more accurate results under rapidly changing atmospheric conditions. compared to conventional tracking algorithms Perturb and Observe (P&O) and incremental conductance (INC).