Research on Rotary Compact Wireless Power Transfer System

Rotary wireless power transfer system has drawn more attention with the advantage of eliminating the mechanical slip ring to increase reliability and lifetime. It can also adapt to different types of rotating equipment and complex motion trajectories, which could be applied to unmanned aerial vehicle, unmanned ground vehicle, unmanned underwater vehicle and other fields. This paper proposes a compact wireless power transfer system with the optimization of the rotary magnetic structure in ANSYS Maxwell software, gives the circuit model of the wireless power transmission system with the S-S compensation scheme in PSIM 9.1.The efficiency of the rotary wireless power transfer system can be up to 95% according to the analysis.