Visualized Evaluation of Feasibility of Power Transmission with Electrical Constraints in Wireless Power Transfer

A visualized evaluation for the wireless power transfer (WPT) system by analyzing the transmitter and receiver separately is proposed in this paper. A maximum available active power map and a trajectory of reflected impedance have been introduced to evaluate the feasibility of the power transmission with practical constraints systematically and straightforwardly. The feasibility can be evaluated intuitively and visually by comparing the two figures. The practical WPT system for EV discussed in SAE J2954 was evaluated to demonstrate the effectiveness of the proposed method.