Electrical Vehicle Battery Charger Based On Cuk-Sepic Converter Design

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..