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http://dx.doi.org/10.12673/jant.2017.21.6.614

Optimizing Transmitting Coil of Wireless Power Transmission System with Different Shape Coils  

Kim, Young Hyun (Department of Electronics Engineering, Incheon National University)
Koo, Kyung Heon (Department of Electronics Engineering, Incheon National University)
Publication Information
Journal of Advanced Navigation Technology / v.21, no.6, 2017 , pp. 614-619 More about this Journal
Abstract
In this paper, we optimize the wireless power transmission (WPT) coil, and then compare the EM simulation and measurement using magnetic coupling at 6.78 MHz. As transmission efficiency is affected by various factors such as the shape of the system, the size of the coils, the coil structure is proposed to consist of a helical resonant for transmission and a spiral resonant for reception. The size of the coil and the distance between the coils are determined to minimize the volume problem, and the shape of the coil are confirmed by EM simulation. A WPT system is designed with 860mm diameter top plate and cylindrical structure of column spaced 600mm apart, and the characteristics are simulated and measured. The simulation shows that ${\mid}S_{21}{\mid}$ is -0.53 dB with the efficiency of 88%, and the measurement result is that ${\mid}S_{21}{\mid}$ is -0.71 dB with the efficiency of 85%.
Keywords
Wireless power transfer; Resonance; Helical coil; Planar Spiral coil;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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