A COMPREHENSIVE ANALYSIS OF ISOLATED AND NON-ISOLATED CONVERTER TOPOLOGIES AND FAST CHARGING TECHNOLOGIES FOR HYBRID ELECTRIC VEHICLES

Abstract

Electric vehicles (EVs) are a promising solution for future transportation systems due to their significant role in reducing carbon emissions, making them a central focus of research and development efforts. One crucial aspect of EVs is rapid charging technology, which aims to deliver refuelling experiences comparable to traditional gasoline cars. This article delves into the current state of electric vehicle charging infrastructure, with a particular emphasis on the importance of rapid charging technology to meet the present and future refuelling demands of EVs. It presents a comparative analysis of different DC-DC converter topologies for both battery electric and plug-in hybrid vehicles, considering factors such as performance, output power, current and voltage ripples, conduction loss, recovery loss, switching frequency loss, reliability, durability, and cost. Additionally, the article explores the architecture, advantages, and disadvantages of AC-DC and DC-DC converter topologies for rapid charging stations. Moreover, the study addresses critical issues and challenges associated with direct current rapid charging in electric vehicles. Finally, the article offers valuable technical insights and contributions to the ongoing development of electric vehicle systems. In essence, this article highlights the environmental benefits of electric vehicles and their growing popularity, emphasizing the need for advanced rapid charging technology while providing a comprehensive analysis of related technologies and challenges. Key Words: Power output, Current fluctuations, Voltage fluctuations, Voltage fluctuations, Conductive losses, Recovery inefficiencies, Switching frequency-related inefficiencies, Dependability, Longevity, Economic considerations, AC-DC converter configurations, DCDC converter designs.