Article Details
A High-Efficiency LLC Resonant Converter for EV Charging Stations with Wide Voltage Range and Reduced Voltage Stress
Author(s)
A. Shanmugasundaram, K. Gokul Raj, K. Nandakumar
Abstract
Electric vehicle (EV) charging systems require high efficiency, wide output voltage range, and reduced component stress to support diverse battery technologies. Conventional LLC resonant converters maintain high efficiency only near a narrow operating point and experience increased voltage stress when subjected to wide variations in battery voltage. To overcome these limitations, this project proposes a Reconfigurable LLC Resonant Converter suitable for DC-connected EV charging stations, designed and validated using MATLAB/Simulink. The converter architecture enables dynamic reconfiguration of the resonant tank parameters.