Design and Analysis of Electric Vehicle Wireless Charging System

because of its higher safety, convenience and flexibility than traditional wired charging. Studying the power transmission theory of the wireless charging system and improving the essential components is a significant way to increase its performance. This essay first outlines the present state of research in this field and highlights its primary issues. It then goes on to discuss the various forms of wireless power transmission also called WPT, the elements that make up a magnetic coupling resonant circuit, and its compensation structure based on the theory. Through theoretical derivation and the summary of the analysis of the design optimization scheme, it is concluded that the planar circular coil is better, and the optimization design process is explained to increase this system's efficiency even further. The results show that S-S topology is more suitable and then provides a scheme for the optimization of coil parameters.