Realization of Alignment-Free WPT SystemRealization of Alignment-Free WPT System
- Other Titles
- Realization of Alignment-Free WPT System
- Authors
- 박병철; 손용호; 장병준; 이정해
- Issue Date
- 2014
- Publisher
- 한국전자파학회
- Keywords
- Alignment-Free Resonator; Magnetic Resonance Coupling; Wireless Power Transmission.
- Citation
- Journal of Electromagnetic Engineering and Science, v.14, no.4, pp.329 - 331
- Journal Title
- Journal of Electromagnetic Engineering and Science
- Volume
- 14
- Number
- 4
- Start Page
- 329
- End Page
- 331
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/16891
- DOI
- 10.5515/JKIEES.2014.14.4.329
- ISSN
- 2234-8409
- Abstract
- A simple realization of an alignment-free wireless power transmission (WPT) system is presented in this letter. The WPT systemconsists of a transmitter with three reconfigurable modes corresponding to various controllable magnetic field directions in theazimuthal plane and an algorithm for the optimum mode selection carried by sensing the reflected voltage of the system. Twelvelight emitting diodes (LEDs) are used to confirm the on- and off-state of LEDs powered wirelessly by the transmitter at every 15°of the azimuthal plane. A criterion voltage from the reflected power of the system is found by using the correlation between thereflected voltage and the on- and off-state of the LEDs. Simply by continuous; monitoring of the voltage from the system, thesystem maintains power to the LEDs. The system is realized by MATLAB/Simulink and a National Instrument data acquisitiondevice (DAQ) board. Measurements using the system show on-state LEDs in the azimuthal plane except at the angles of 60°, 75°,180°, and 300°.
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