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http://dx.doi.org/10.12673/jant.2018.22.2.148

Implementation of Wireless Power Transmission System for Multiple Receivers Considering Load Impedance Variation  

Kim, Young Hyun (Department of Electronics Engineering, Incheon National University)
Park, Dae Kil (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.22, no.2, 2018 , pp. 148-153 More about this Journal
Abstract
This paper proposes a single-input multiple-output (SIMO) self-resonant wireless power transmission system for transmitting power to multiple receivers and the characteristics are simulated and measured. A 600 mm diameter transmission single loop, a 600 mm diameter helical transmission resonant coil, an external diameter 900 mm planar spiral reception resonant coil, and an $80{\times}60mm^2$ flat plate square coil as a receiver are used to form a wireless power transmission system 600 mm away with the table structure. For optimal characteristics, the wireless power transmission coils are designed by EM simulation and equivalent circuit analysis, and the characteristics are simulated and measured. The variation of the efficiency with distance from the center of the spiral resonant coil is analyzed and the measured efficiency is 57% for one receiver and for the two receivers, the efficiency is 37% for each receiver.
Keywords
Wireless power transfer; Load Impedance; Helical coil; Planar Spiral coil;
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Times Cited By KSCI : 1  (Citation Analysis)
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