Effect of MCR-WPT Load on System Optimal Parameters

In order to solve the parameter optimization problem of the MCR-WPT, the paper studies the influence of the load under the maximum transmission power (maximum power load) on the system parameters. Based on the lumped parameter theory, a formula of the maximum power load was deduced, and the influence of transmission distance, coupling coefficient and system frequency on maximum power load were analyzed. Then the optimal system parameters under different loads were worked out. The circuit simulation and analysis were carried out, and a two-coil structure wireless power transfer experiment platform was built. Simulation and experimental results show that there is a one-to-one correspondence between different system optimal parameters and the maximum power load, the optimal system coupling coefficient increases with the rising of maximum power load and the optimal transmission distance decreases as maximum power load increases.Therefore, the optimal system parameters can be selected under different loads to ensure the maximum transmission of power.