Title :
Near-field intensity prediction model at maximum transferred power frequency in mutual-coupled rectangular coils for WPT system
Author :
Sunkyu Kong ; Kim, Jonghoon J. ; Laehyuk Park ; Unkyoo Park ; Jiseong Kim ; Joungho Kim
Author_Institution :
Dept. of EE, KAIST, Daejeon, South Korea
Abstract :
In this paper, we present the prediction model of the near-field intensity at the frequency of maximum power transfer in mutual-coupled rectangular coils for wireless power transfer (WPT) systems. When the current flows through the transmitter coil in mutual-coupled coils, the electromagnetic fields are radiated from both transmitter and receiver coil and interact with each other. The presented model enables to predict the near-field intensity of mutual-coupled rectangular coils reflecting an interaction between the transmitter and receiver coils such as a mutual coupling factor and an offset of electromagnetic fields radiated from each coil at the operating frequency that maximizes the power transferred. In order to validate the presented model, the test vehicles of the coupled rectangular coils are simulated with 3D EM solver and fabricated on printed circuit boards (PCBs). Lastly, it is experimentally verified that the presented model has a good prediction of the near-field intensity at the frequency of maximum power transfer in mutual-coupled rectangular coils for WPT systems.
Keywords :
coils; inductive power transmission; printed circuits; 3D EM solver; PCB; WPT system; electromagnetic fields; maximum power transfer; maximum transferred power frequency; mutual coupling factor; mutual-coupled rectangular coils; near-field intensity prediction; near-field intensity prediction model; printed circuit boards; receiver coil; transmitter coil; wireless power transfer systems; Coils; Current measurement; Generators; Magnetic analysis; Magnetic resonance; Receivers;
Conference_Titel :
Electromagnetic Compatibility (APEMC), 2012 Asia-Pacific Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-1557-0
Electronic_ISBN :
978-1-4577-1558-7
DOI :
10.1109/APEMC.2012.6237934