In this study, a comprehensive review of existing technological solutions for wireless power transfer used in electric vehicle battery chargers is given. The concept of each solution is thoroughly reviewed and the feasibility is evaluated considering the present limitations in power electronics technology, cost and consumer acceptance. In addition, the challenges and advantages of each technology are discussed. Finally, a thorough comparison is made and a proposed mixed conductive/wireless charging system solution is suggested to solve the inherent existing problems. Recent attention to transportation electrification and the rise in electric vehicle (EV) deployment have led researchers to investigate several aspects of EV and charging technologies including advanced battery technologies, electric drives, on-board charging systems, and off-board level 3/fast-charge systems. On-board chargers are burdened by the need for a cable and plug charger, galvanic isolation of the on-board electronics, the size and weight of the charger, and safety and issues with operating in rain and snow. Wireless power transfer (WPT) is an approach that provides a means to address these problems and offers the consumers a seamless and convenient alternative to charging conductively. In addition, it provides an inherent electrical isolation and reduces on-board charging cost, weight and volume. Recent active program announcements in the area of WPT chargers, are truly showing the significance of WPT chargers in acceptance and emergence of EVs. Active companies and groups include: † Tier 1 automotive suppliers including Delphi, Magna, Maxwell and Panasonic; † Government organisations and RD centres such as Phillips
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