그림 1. 자유공간 자기공진 무선전력전송 시스템 Fig. 1. Magnetic resonance WPT system in free space.
그림 2. 자유공간 자기공진형 무선전력전송 T형 등가모델 Fig. 2. T-type equivalent circuit model of magnetic resonance WPT in free space.
그림 3. 상호인덕턴스에 따른 S11 모의실험 Fig. 3. Simulation of S11 according to mutual inductance.
그림 4. 제안하는 수중 무선전력전송 등가모델 Fig. 4. Proposed equivalent circuit model of underwater magnetic resonance WPT.
그림 5. 실험 블록 다이어그램 Fig. 5. Block diagram of experiment.
그림 6. 실험 환경 Fig. 6. Measurement environment.
그림 7. 매질별 거리에 따른 S11 모의실험값 및 측정값 Fig. 7. Simulated and measured S11 by transfer medium and distance between coils.
그림 8. 매질별 거리에 따른 무선전력전송 효율 모의실험값 및 측정값 Fig. 8. Simulated and measured power transfer efficiency by transfer medium and distance between coils.
표 1. 무선전력전송 코일 및 회로 파라미터 Table 1. Parameters of WPT coil and circuit.
References
- Y. Huang, J. Wang, T. Sun, X. Xie, G. Li, and Y. Gu, et al., "An efficiency-enhanced wireless power transfer system with segmented transmitting coils for endoscopic capsule," in 2013 IEEE International Symposium on Circuits and Systems(ISCAS2013), Beijing, May 2013, pp. 2279-2282.
- A. I. Al-Kalbani, M. R. Yuce, and J. Redoute, "A biosafety comparison between capacitive and inductive coupling in biomedical implants," IEEE Antennas Wireless Propagation Letters, vol. 13, pp. 1168-1171, Jun. 2014. https://doi.org/10.1109/LAWP.2014.2328375
- F. Goncalves, C. Duarte, and L. M. Pessoa, "A novel circuit topology for underwater wireless power transfer," in 2016 International Conference on Systems Informatics Modelling and Simulation(SIMS), Riga, Jun. 2016, pp. 181-186.
- J. H. Cui, J. Kong, M. Gerla, and S. Zhou, "The challenges of building mobile underwater wireless networks for aquatic applications" in IEEE Network, vol. 20, no. 3, pp. 12-18, May.-Jun. 2006.