Recent Advances in Wireless Power Transfer Technologies for Electric Vehicles

Abstract

With the advancement of innovative technology in the contemporary world, wireless power transfer technology is also playing an increasingly important role in electric vehicles. In the past, there did not have enough electric products and spaces to apply to this wireless charging technology so the use of it by humans is limited to some levels of understanding of the technology, such as one or two technical classifications contained in wireless power transfer (WPT). However, people have more in-depth research on convey of power wirelessly and charging for the electric vehicle nowadays. By reason of this situation, this paper focuses on the three technologies in the WPT system, which are magnetic resonant coupling, capacitive coupling, and inductive coupling. Meanwhile, the compensation network that is associated with three technologies is also illustrated directly in it. Additionally, it compares those technologies in a clear table with advantages and disadvantages. Eventually, it summarizes all the previous content and proposes a vision for the future improvement description.