Research and Practice on Electric Vehicle Wireless Power Transfer Teaching Platform Based on Magnetic Coupling
Wireless power transfer(WPT)currently develops rapidly and can be applied in many fields.However,the teaching practical system for WPT is not comprehensive enough,and students'understanding of it is not deep enough.In order to stimulate students'interest and achieve good teaching results,this paper takes the wireless charging system of electric vehicles as the application background,and introduces the traditional wireless charging system architecture.Next,mathematical models of typical structures are established based on the fundamental harmonic approximation method and Kirchhoff's voltage law,the output voltage,current,power,and transmission efficiency characteristics of different structures under the resonant state are analyzed.Besides,an introduction is given to the design of the inverter and the rectifier,the magnetic coupling structure,and the selection of Litz wires for the wireless charging experimental platform.Finally,the output characteristics of various wireless charging structures are verified on the platform,enabling students to enhance their practical abilities in power electronics while gaining a more intuitive understanding of the wireless charging system.
wireless power transferelectric vehicleconstant-voltage and constant-current structuresmagnetic coupling structureexperimental platform construction
万方数据
维普
