Application of Wide Bandgap High Frequency Inverter in 10 kW Magnetic Field-Coupled Undersea Wireless Power Transfer Systems

This article proposes a high-frequency inverter design based on wide bandgap silicon carbide (SiC) material for the high-power demand of 10 kW undersea, combined with magnetic coupling mechanism optimization, to construct a wireless energy transmission system. Breakthrough the performance bottleneck of traditional systems through the high-frequency characteristics of SiC MOSFET devices. By utilizing the high electron mobility, low on resistance, and high temperature resistance of SiC, the system significantly reduces switching losses and temperature rise, while improving power transmission efficiency. Adopting Leeds wire winding and segmented magnetic core design to reduce high-frequency eddy current losses and improve coupling coefficient. Adopting LCC-S type resonant compensation network, combined with finite element simulation optimization of coil structure, to achieve the improvement of coupling coefficient. Achieve a maximum output power of 10 kW at a transmission distance of 10 cm undersea. This design has advantages in transmission efficiency, power capacity, and anti offset capability, providing theoretical basis and technical reference for the engineering application of high-power medium distance UWPT systems.