Browsing by Author "Boukarana, Leila"

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    Contrôle des systèmes FACTS dans un réseau electrique connecté à une source d’energie renouvelable
    (Universite M'Hamed Bougara Boumerdès : Faculté des Hydrocarbures et de la Chimie, 2025) Boukarana, Leila; Fellag, Sid Ali(Directeur de thèse)
    Le présent travail de recherche traite la problématique du contrôle des réseaux électriques par les systèmes FACTS (Flexible AC Transmission System) avec l’intégration d’une source d’énergie renouvelable. Le contrôle du power system porte sur : la compensation de l’énergie réactive des lignes, maintien de la tension au niveau des jeux de barres, l’amélioration du transit des puissances dans les lignes de transport et l’injection de l’énergie photovoltaïque sur le réseau électrique. Plusieurs approches et techniques sont analysées et évaluées à travers des simulations
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    Fuzzy logic control of a 400 KV transmission line by a statcom based on NPC multilevel voltage inverters
    (Centre for Info Bio Technology (CIBTech) (Regd, 2024) Boukarana, Leila; Fellag, Sid Ali; Habi, Idir
    Recent developments in power systems mean that it will be increasingly difficult to reliably control power transfers in highly interconnected systems using traditional slow response time control systems such as phase- shifting transformers and passives shunts or series compensators. This has recently led to studies of a new generation of FACTS (Flexible AC Transmission System) control devices, using new power static components that can control both opening and closing: a FACTS device. This paper introduces the STATCOM, a power device reliant on a semiconductor power switches for controlling electrical networks. It serves to enhance the regulation of both active and reactive power transmitted through power lines. Specifically, the STATCOM compensates the reactive energy of the lines, maintains the voltage levels at the bus bars and enables the power source to operate with a unity power factor. After a concise introduction to the operating principle of the STATCOM, a model is presented featuring key control loops including Phase-Locked Loop (PLL), DC bus voltage control, and power control. Linear controllers (Proportional Integral PI) are used and an approach using Fuzzy Logic Controllers (FLC) is tested. Simulation results for a 400 kV line conducted within the Matlab/Simulink environment are presented, providing a comparative analysis and discussion on the effectiveness of the adopted control strategies in addressing both dynamic and static aspects of the