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Wireless charging devices do not require any physical connections to send electricity from a source to a load. WPTs are appealing for many industrial applications because they provide advantages over their wired equivalents, such as the elimination of exposed wires, ease of charging, and fearless power transfer in hazardous environments. Many firms are working to build and improve numerous similar topologies because they want to use WPTs (Wireless Power Transfer Systems) to replenish an electric vehicle's (EV) onboard batteries. WPT is enabled via a moderate inductive connection between each transmitter and receiver. Transmitter coils are buried in the ground for EV charging applications, while receiver coils are installed in cars. Because of its higher efficiency, resonant inductive WPT is commonly employed for medium-high power transfer applications such as EV charging. WPT technology is being used to charge an electric car that is being used as a test subject for on-board batteries. The electric automobile is powered by two in-wheel motors in the rear wheels, each capable of producing up to 4 kW, and four series-connected 12V, 100A VRLA batteries. Three main stages were included in the effort; the first step involved doing an overview of wired EV battery chargers and charging methodologies. A set of defined Figures of Merit (FOM) is used to describe resonant WPTs to changes in resistive load and coupling coefficient. The history of several WPT technologies is then examined. In the second stage, the WPT system for the study case was created. In the third stage, a WPT system prototype has been built and put through testing. The WPT system is designed after evaluating each section's specific parameters and estimating how system parameters effect performance.
Rekha et al. (2023) studied this question.