Abstract:
This paper introduces a groundbreaking advancement in electric vehicle technology: a
sophisticated single-stage battery charger featuring an isolated bridgeless (BLS) CukSEPIC
converter (CSC). Operating seamlessly in discontinuous conduction mode and seamlessly
integrating power factor correction (PFC) at the AC mains, this charger surpasses traditional
setups with its streamlined design and enhanced efficiency. By harmonizing Cuk and SEPIC
converters during individual half cycles and integrating an output inductor on the Cuk converter
side, it achieves superior performance, particularly in output current smoothing. Rigorous
validation of the newly developed BLS isolated PFC converter’s exemplary power quality (PQ)
operation is carried out using a 48V/100Ah electric vehicle battery load. Through meticulous
testing in the MATLAB/Simulink environment with fuzzy logic (FL) controllers, the charger’s
performance is fine-tuned. This work represents a significant leap in electric vehicle battery
charging, showcasing elegance, efficiency, and engineering excellence through meticulous
thoughtful design..
