The state-of-the-art wireless power transmission technology in electric vehicles

Abstract

Abstract Since the 21st century, people have been paying attention to energy and environmental protection issues, and the world is accelerating the development and promotion of new energy vehicles. At present, the mainstream charging method of new energy vehicles is wired charging, but this charging method has certain safety hazards. So using wireless charging technology can effectively make up for this shortcoming. This paper starts with the development history of wireless charging technology, and expounds the birth and development of wireless charging technology. Then three common wireless charging technologies are introduced. This article will introduce the three wireless charging technologies from their principle, topology and advantages and disadvantages. Secondly, by comparing the three wireless charging technologies, it is concluded that IPT technology is the most mature and widely used technology at present, at the same time, CPT technology is also promising. Finally, the technical challenges and development prospects of wireless charging technology are discussed.