Research on Efficient High-Power Density Shore WPT System Based on S-N Topology

The traditional near-shore charging system for electric boats will pose certain threats to the staff and the hull. Wireless power transmission technology provides a safe and effective new way for electric boats to be charged near the shore. This article proposes a high-efficiency and high-power-density wireless power transmission system. A special magnetic core arrangement scheme is proposed to increase the coupling coefficient while reducing the size of the coupling mechanism. The system parameters were determined and a simulation model was built for circuit simulation, and the output characteristics of the system were analyzed. An experimental platform was built to verify the feasibility of the system. This platform achieved an output of 30.9kW and a system efficiency of 97.8%.