Wireless Power Transfer Systems: Design, Challenges, and Applications in EV Charging Infrastructure

A research to evaluate how WPT systems perform for Electric Vehicle (EV) charging is conducted. The research includes into coil configurations, misalignment, power loss, electromagnetic interference (EMI), increase in temperature, etc. and power conversion efficiency. But larger coils are more efficient and can get a car charged faster, but they also take up more space and are less recommended because they’re harder to set up. Especially on the instant they did not align well, the system was significantly performing bad, with a significant drop in efficiency and additional EMI and temperatures. The study states that in order for WPT to remain applicable for EV charging, proper thermal management and less power loss must be considered. In overall, large coils charge with the highest efficiency, but become impractical in tight spaces. According to the findings, conflict in alignment and EMI pose a major challenge for urban EV chargers that support WPT.