Overview of wireless power transfer for electric vehicle charging

This paper presents an overview of current wireless power transfer (WPT) technologies for the application of electric vehicles (EV) wireless charging. The basic principles of each technology are introduced. Followed by classification, the advantages and limitations of each technology for EV charging are discussed. Promising technologies such as coupled magnetic resonance and magnetic gear technologies are systematically reviewed. The latest development, key technical issues, challenges and state-of-art researches are introduced. The research trends are also been given.