High-Frequency Transformer Design Analysis for Wireless Charging Application

Abstract

This paper presents a modeling design and analysis of a high-frequency transformer (HFT) of flyback PEmag simulation operating in critical conduction which could be used for a wireless charging circuit for an electric vehicle (EV) from a pipeline through the electromagnetic field of high voltage transmission lines for mitigation and avoiding AC corrosion. Discriminating a transformer core and wire sizing becomes a very important criterion for an efficient operation for current, voltage, losses of core, and primary and secondary windings. The high-frequency magnetic core and the winding method of magnetic components have been selected for suitable parameters which included 25, 50, 100, and 200 switching high-frequency transformers. The feasibility of the design scheme is verified and calculated by several software program implementation results. The following overview provides a loss study of the flyback high-frequency transformer including losses of copper (both DC and AC winding loss) and core loss calculations as well. This HFT is used in contact with a design circuit of wireless power transfer of charging from a high-voltage transmission line. The wireless power transfer offers a new path to energy acquisition for electric-driven devices such as electric vehicles. The model is entered into a software application for electromagnetic and transformer calculations to prevent instability problems during modeling simulation processes.