Multi-Objective Optimization of the Wireless Power Transfer System for Electric Vehicles

Wireless power transfer (WPT) technology is an effective charging method for electric vehicles. However, when the output power reaches a certain grade, the efficiency decreases with an increase in the output power. Based on this problem, we establish the loss power model of the WPT system, and analyze the efficiency of the WPT system in detail, as well as proposes a multi-objective optimization method to find an optimal control target between the output power and efficiency. Finally, simulation results illustrate that the output power is 10.4 kW and the efficiency is 92.97 % when the system is in the optimal solution state.