Optimal Design Method of a Wireless Charging System for HTS Magnets Using a Genetic Algorithm

The feasibility of the wireless current charging technique for high-temperature superconductor (HTS) magnets is verified through previous studies. Because the magnitude of the charged current strongly depends on the circuit parameters of the wireless current charging system, this study proposes an optimal design method that increases the efficiency of the system by employing a genetic algorithm. An equivalent circuit model to improve the computing speed is proposed and the overall design process reflecting the equivalent circuit model is introduced. The optimal design for a 3T class target HTS magnet is derived using the proposed method, and a circuit analysis using Simulink is carried out to check the design results. Additional circuit simulations of randomly selected cases for a comparison of the optimal design result are also carried out to verify the performance capabilities of the proposed method.