A Review on Power Pad, Topologies and Standards of Wireless Charging of Electric Vehicles

The charging mechanism of an electric vehicle functions a significant part in the structure of EV. The conventional EVs employ plug-in charging systems while the modern EVs employ either wireless charging systems or a hybrid combination of wired and wireless charging. This paperwork presents an advanced review of different methods incorporated to transfer power through an air gap (WPT). The wireless charging methodologies and the type of charging system based on the vehicle position while getting charged have been detailed. The components required for WPT followed by different topologies (SS, SP, PP, PS, LCCL-P, LCCL-S) have also been discussed. The detailed enhancement of the topics has been done using diagrams and figures to provide an image of the idea of the topics being discussed. The requirement, standards, recent trends, challenges for WPT are discussed. Comparative analysis of the characteristics of various compensation topologies has been outlined in tabular form and discussed in a well manner such as advantages, disadvantages load impedance and many more. Through the paper researchers, scholars could grab thorough knowledge on the basics of WPT and its mechanism of working, especially its explicit usage in EVs.