Research on high-power and high-efficiency wireless power transfer system based on LCC-S topology

Wireless power transfer (WPT) technology provides an effective solution for near-shore energy transmission in ships. This paper proposes a design method for a high-power, high-efficiency WPT system based on the LCC-S compensation topology. The loss characteristics of the WPT system are analyzed, followed by a detailed examination of the relationship between system efficiency and primary inductance. Optimal efficiency point parameters are determined, and a magnetic integrated coupling mechanism is designed to enhance transmission performance. Circuit simulations are conducted to validate the theoretical analysis. Furthermore, an experimental platform is established, and the experimental results confirm the effectiveness of the proposed method. The system achieves an output power of 93 kW and an overall efficiency of 96%, demonstrating the feasibility and superior performance of the proposed design approach.