Analysis of the wireless power transfer system using electromagnetic topology method

In this article, a new approach is proposed to analyze a wireless power transfer (WPT) system using the electromagnetic topology (EMT) method. Characteristic parameters for the junction and tube in the EMT method are obtained from the equivalent circuit of the WPT system. The load voltage is computed using the Baum–Liu–Tesche equation, which is the solver for the EMT method. A simple WPT system is analyzed to confirm the validity of the proposed method by comparing it with the conventional full wave analysis method. The analysis results obtained by the proposed method are in good agreement with the results of the conventional method.