contribution a l'etude de dispositif PV-UPQC dans l'amelioration de la qualite de l'energie elctrique

Abstract

Abstract This thesis explores the integration of photovoltaic (PV) systems with Unified Power Quality Conditioners (UPQC) to improve the quality of electrical energy in the context of growing energy demand and increased integration of renewable energy sources. Power quality disturbances, such as harmonics, voltage sags, swells, and imbalances, pose increasing challenges for electrical networks. Although UPQCs effectively mitigate these disturbances, their performance is optimized when coupled with PV systems. A comprehensive literature review was conducted to analyze existing technologies, followed by the development of simulation models and control algorithms aimed at regulating renewable energy production and ensuring the quality of the energy injected into the grid. Simulation results demonstrate that the proposed PV-UPQC system significantly enhances power quality while optimizing the use of solar energy. This approach contributes to a more robust integration of renewable energy sources, ensuring a stable power supply that complies with international standards. Keywords: Photovoltaic systems (PV), Unified Power Quality Conditioner (UPQC); Power quality, harmonics, voltage sags, Voltage swell, imbalances