Grant: Idea to Innovation

The market challenges at the forefront of focus for wireless power transfer (WPT) systems are the optimization of components in ground assembly (GA) and vehicle assembly (VA). The challenges involve enhancing power transfer efficiency, improving power density as per the Society of Automotive Engineers (SAE) J2954 standard. Moreover, as the market endeavors to bring the WPT system into mainstream usage because of exponentially growing EV demand, there are several commercialization problems such as increased weight and cost, high heat dissipation, and EMF (Electromagnetic Field) exposure to the consumers. For the safe and widespread implementation of WPT technology, managing EMF exposure below SAE J2954 standard, particularly the 27 µT (rms) or 21.4 A/m threshold, necessitates the use of proper shielding materials. Furthermore, the coupling coefficient between GA and VA coils is critical, necessitating extensive research to find an optimized coil configuration with the proper shielding technique that meets SAE J2954 standards. High current, which is required to deliver high power within limited dimensions, presents issues such as extreme heat dissipation, component damage, fire hazards, and EMF exposure to consumers.