| Summary: | This thesis firstly introduces the classification of wireless energy transmission systems, focuses on the structure and application of magnetically coupled resonance systems, analyses the working principle and deduces the transfer function formula for four magnetically coupled resonance topologies: S/S, LCC/S, LCC/LCC, and LCL/LCL, and verifies the correctness through PLECS simulation, which provides a theoretical foundation for the fabrication of physical prototypes using the S/S topology. theoretical foundation. In addition, this thesis also involves reducing the weight of the wireless charging system through advanced magnetic design without sacrificing the system performance, exploring the advantages of the anisotropic material arrangement over the traditional ferrite, and proposing a new magnetic circuit modelling method. In the experimental stage, the switching power devices are tested with double pulses and physical prototypes are fabricated. The efficiency of the prototype is tested at 2kW, 3kW and 5kW, and it is found that the energy transfer efficiency of the magnetically coupled wireless energy transfer system can be maintained at more than 97%.
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