Universal Wireless Power Transfer System for AUV Based on Flexible Magnetic Couplers

To ensure efficient energy replenishment for underwater autonomous vehicles (AUVs), this paper introduces a universal wireless power transfer system based on flexible magnetic couplers. The designed flexible magnetic couplers can adjust the transmitter diameter according to different AUV models, enhancing the universality of the charging platform. Dynamic tuning is achieved by integrating variable capacitance and variable inductance technologies to maintain the system's resonance state. The designed experimental prototype can transmit 1.08 kW of power while retaining a DC-DC transmission efficiency of 91.55%.