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두 개의 송신코일을 갖는 위상 천이 자기 공진 무선 전력 전송 시스템

Phase Shifted Magnetic Resonance Wireless Power Transfer System with Two Transmit Coils

  • Jung, Jae-Yup (Dept. of Electronic Engineering, Daegu University) ;
  • Yi, Kang-Hyun (School of Electronic and Electrical Engineering, Daegu University)
  • 투고 : 2018.03.02
  • 심사 : 2018.04.06
  • 발행 : 2018.08.20

초록

This paper proposes a new magnetic resonant wireless power transfer system. Two transmitters are arranged to secure a range wider than the existing one-to-one resonance, thereby enhancing the practicality of the system. Two identical transmission units are arranged to strengthen the magnetic field and to subsequently increase the magnitude and distance of the power transmitted to the reception unit. A constant power can be maintained in a wide range through the phase control of different output powers according to the positions of the transmitting and receiving coils. A constant power can also be obtained by transmitting to the receiver. The experiment results show that the proposed method outperforms the conventional method.

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참고문헌

  1. M. Soljacic, A. Kurs, and A. Karalis, "Wireless power transfer via strongly coupled magnetic resonances," Sci Express, pp. 83-86, 2007.
  2. R. Johari, J. V. Krogmeier, and D. J. Love, “Analysis and practical considerations in implementing multiple transmitters for wireless power transfer via coupled magnetic resonance,” IEEE Trans. Ind. Electronics, Vol. 61, No. 4, pp. 1771-1783, Apr. 2014. https://doi.org/10.1109/TED.2014.2304452
  3. S. You, Y. Kim, and H. Ang, "Design and modeling platform of resonant wireless power transfer system," Proceeding of The Korean Institute of Electrical Engineers Annual Conference, pp. 3-4, Jul. 2015.
  4. D. Ahn and S. Hong, “A transmitter or a receiver consisting of two strong coupled resonators for enhanced resonant coupling in wireless power transfer,” IEEE Trans. Ind. Electron., Vol. 61, No. 3, pp. 1193-1203, Mar. 2014. https://doi.org/10.1109/TIE.2013.2257151
  5. K. Siddabattula, "Why not a wire? The case for wireless power," Jan. 18, 2018. Retrieved from https://www.wirelesspowerconsortium.com/technology/why-not-a-wire-the-case-for-wireless-power.html,
  6. T. Ahn, “Optimizing method for wireless charging with frequency control,” Journal of The Institute of Electronics Engineers of Korea, Vol. 50, No. 7, pp. 275-280, Jul. 2013.