Performance Comparison of Conventional and Three Level Buck-Boost Converter for Efficient Ev Charging Application

Electric Vehicle (EV) charging system requires efficient and reliable power conversion to ensure stable energy transfer while minimizing losses and component stress. This paper presents a comparative analysis of the conventional Buck-Boost Converter and the 3-level Buck-Boost converter for 48 V Charging and discharging application of a 3-level buck boost converter in buck and boost operation respectively operating at a 50 KHz switching frequency. The 3-level BuckBoost converter offer significant advantage of reduction in inductance and capacitance, lower voltage stress on switch and reducing switching losses leading to improve efficiency and thermal performance, Additionally, the voltage and current ripple reduces. These improvements make the 3-level BuckBoost Converter more efficient, compact and reliable choice for high-power EV chargers. This study highlights the benefits of adopting multi-level converter topologies in modern EV charging infrastructure, optimizing energy conversion while maintain grid stability and battery performance.