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Efficiency and performance evaluation of string inverters versus micro-Inverters in photovoltaic system
(Université M’Hamed Bougara de Boumerdes : Institut de génie electrique et electronique (IGEE), 2024) Kraled Kebir, Nadjib; Lairedj, Fayçal; Boutora, Saliha (Supervisor)
String inverters and micro-inverters represent distinct approaches to maximizing the power output from solar panels. This project is a comparative analysis of string inverters and micro-inverters within the context of photovoltaic (PV) systems. The primary objective is to evaluate the efficiency ,performance, and overall impact of these two inverter technologies on solar energy conversion. String inverters, which connect multiple solar panels in series, are analyzed for their cost-effectiveness and efficiency under uniform irradiance conditions. In contrast, micro-inverters, which are deployed at the module level, are evaluated for their ability to optimize energy harvest in scenarios with partial shading and varying irradiance. The study involves both theoretical modeling and simulations toquantify the performance metrics of each technology. Key parameters such as energy yield, system reliability, installation complexity, and maintenance requirements are assessed. Results from the analysis highlight the conditions under which each inverter type excels and provide insights into the decision-making process for PV system designers and installers.