Photovoltaic Charger with Fuzzy Logic Control for Lithium-ion Battery Charging

This paper proposes a Battery charger system (photovoltaic) whose efficiency and safety during the charging of lithium-ion batteries are improved by incorporating fuzzy logic control. With the growing demand for renewable energy, particularly solar energy, lithium-ion batteries are being increasingly used in the present world owing to their high energy density and long cycle life in several applications ranging from electric vehicles to portable devices. The fuzzy logic control system developed in this work will adapt dynamically to changing environmental factors like solar irradiance and the state of charge of the battery, providing energy conversion efficiency with safety to the system for charging the battery.