HIGH EFFICIENT ADAPTIVE CURRENT CHARGING OF LITHIUM ION BATTERY FOR ELECTRIC VEHICLES BY USING SIMULATION MODEL
International Journal of Engineering Applied Sciences and Technology
The main aim of the proposed project is to make another attempt in battery charging strategy by using optimized photovoltaic (PV) sourced charge to achieve optimal charging time in a lithium-ion battery for electric vehicles (EV). As the existing charging methods do not consider the variation of battery internal resistance, we aim to use an adaptive current charging profile based on this variation, which changes according to the state of charge (SOC). The battery pack is coupled to a PV module
... led to a PV module that also aids in charging the battery additionally and acts as a Battery Energy Storage (BES). We intend to use modified incremental conductance method to achieve Maximum Power Point Tracking (MPPT). MPPT algorithm's major principle is to extract maximum available power from PV module by making them operate at the most efficient voltage. The charge controller tracks power by measuring the voltage and current value and hence the maximum power is determined by using MPPT algorithm. When the (V/I) ratio i.e., the value of impedance (Z) of the battery that is being charged is equal to the battery's internal resistance, maximum power can be obtained at this point. The simulation result shows us the values of voltage and current at different levels of charging.