The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of the Superconducting Wireless Power Transmission System Characteristics according to the Number of Turns of the Coil

코일의 감은 횟수에 따른 초전도 무선전력전송 시스템 특성 분석

  • Received : 2018.01.08
  • Accepted : 2018.02.12
  • Published : 2018.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

Studies have been actively conducted on the magnetic-resonance wireless power transmission (WPT) for commercialization. Such studies are essential for improving the transmission efficiency. In the magnetic-resonance WPT, the inductance (L) and capacitance (C) vary significantly depending on the design of the coils, and the efficiency sharply changes accordingly. To address this problem, studies on the coil design are required. In this study, the S-parameter characteristics according to the number of turns of the coil were analyzed to improve the efficiency of the superconducting WPT. Superconducting coils were designed, and the reflection coefficient ($S_{11}$) according to the turns was analyzed. It was confirmed that the power transmission characteristics were improved as the reactance approached $0{\Omega}$

Keywords

References

  1. Ju-yeop Jang, "Design of Helical Coil for the Magnetic Resonance Wirless Power Transmission System," master's thesis, 2012.
  2. Ju-Yeop Jang, Jung Hur, Yong-Nam Kim, "Novel Mutual Inductance Formula for the Magnetic Resonance Wireless Power Transmission System Using Helical," The Journal of Korean Institute of Electromagnetic Engineering and Science 23(6), 669-681 (13 pages), 2012.6 https://doi.org/10.5515/KJKIEES.2012.23.6.669
  3. Yohan Jang, Jaesoon Kwon, Jaesu Park, Jaehoon Choi, "Design of a High Efficiency Resonator for Wireless Power Transfer," The Journal of Korean Institute of Electromagnetic Engineering and Science 22(9), 820-826 (7 pages) 2011.9 https://doi.org/10.5515/KJKIEES.2011.22.9.820
  4. In-Sung Jeong, Byung-Ik Jung, Don-Sang You, and Hyo-Sang Choi, "Analysis of S -Parameters in Magnetic Resonance WPT Using Superconducting Coils," IEEE Transaction on Applied Superconductivity, vol. 26, Issue. 3, April 2016.
  5. Andre Kurs, Aristeidis Karalis, Robert Moffatt, J. D. Joannopoulos, Peter Fisher, and Marin Soljacic, "Wireless power transfer via strongly coupled magnetic resonances," Science, vol. 317, 2007