Volume 6, Issue 3, September 2018, Page: 45-49
Investigation of Wireless Power Transfer Under Water Via Capacitive Coupling Technique
Anwar A Saleh Mohamed, Department of Electronic Engineering, the University of Tor Vergata, Rome, Italy
Received: Dec. 19, 2018;       Accepted: Jan. 10, 2019;       Published: Feb. 20, 2019
DOI: 10.11648/j.com.20180603.11      View  180      Downloads  19
Abstract
The aim of this study is to analyze and evaluate the efficiency of wireless power transfer under different types of water, in this work, a preliminary investigation about the behavior of a parallel plate capacitor immersed in the seawater is presented. The reference structure consists of two square copper parallel plates with a side of 18 cm. Four media have been considered (air, de-ionized water, seawater and tap water); the distance between the plates has been varied from 0.5 cm to 50 cm per each medium, and the transmission coefficient of the capacitive coupling model is recorded for each case. The measurements are performed in the frequency range 30KHz - 50 MHz By analyzing the results, the tendency of the coupling is more capacitive in the case of deionized water and tap water while it is more resistive in the case of seawater because of the significant connectivity of the salt water, the maximum efficiency noted to be at the frequency around 2.5MHZ an equivalent circuit model has been carried out and some considerations about the power transfer mechanism in capacitor-based (capacitive coupling) structure in the seawater have been deduced.
Keywords
Capacitive Wireless Power Transfer (CPT), Undersea Wireless Power Transfer (U-WPT), Resistive Coupling, Capacitive Coupling Wireless Power Transfer
To cite this article
Anwar A Saleh Mohamed, Investigation of Wireless Power Transfer Under Water Via Capacitive Coupling Technique, Communications. Vol. 6, No. 3, 2018, pp. 45-49. doi: 10.11648/j.com.20180603.11
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Reference
[1]
V. Boscaino, F. Pellitteri, L. R. R., and C. G., “Wireless battery chargers for portable [2] [5] [5] pplications: design and test of a high-efficiency power receiver,” IET Power Electronics, vol. 6, pp. 20–29, 2013.
[2]
S. Segan. (2015) First Look at Intel’s Laptop Wireless Charging. [Online]. Available: http://www.pcmag.com/article2/0,2817,2490600,00.asp.
[3]
[Online]: http://www.wirelesspowersupply.net/tv-that-uses-wireless-powersystem.
[4]
H. Z. Z. Beh, G. A. Covic, and J. T. Boys, “Wireless Fleet Charging System for Electric Bicycles,” Emerging and Selected Topics in Power Electronics, IEEE Journal of, vol. 3, no. 1, pp. 75–86, Mar. 2015.
[5]
S. Asheer, A. Al-Marawani, T. Khattab, and A. Massoud, “Inductive power transfer with wireless communication system for electric vehicles,” in GCC Conference and Exhibition (GCC), 2013 7th IEEE, 2013, pp. 517–522.
[6]
J. Shi, D. Li and C. J. Yang, "Design and analysis of an underwater inductive coupling power transfer system for autonomous underwater vehicle docking applications," Journal of Zhejiang University SCIENCE C, pp. 51-62, 9 January 2014.
[7]
M. Urano, K. Ata and A. Takahashi, “Study on underwater wireless power transfer via electric coupling with a submerged electrode,” in 2017 IEEE International Meeting for Future of Electron Devices, Kansai (IMFEDK), Kyoto, 2017, pp. 36-37.
[8]
L. J. Zou, A. P. Hu and Y. g. Su, "A single-wire capacitive power transfer system with large coupling alignment tolerance," in 2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW), Chongqing, 2017, pp. 93-98.
[9]
F. Lu, H. Zhang and C. Mi, "A Two-Plate Capacitive Wireless Power Transfer System for Electric Vehicle Charging Applications," in IEEE Transactions on Power Electronics, vol. 33, no. 2, pp. 964-969, Feb. 2018.
[10]
A. Kumar, S. Pervaiz, Chieh-Kai Chang, S. Korhummel, Z. Popovic and K. K. Afridi, "Investigation of power transfer density enhancement in large air-gap capacitive wireless power transfer systems," in 2015 IEEE Wireless Power Transfer Conference (WPTC), Boulder, CO, 2015, pp. 1-4.
[11]
Z. Cheng, Y. Lei, K. Song, and C. Zhu, “Design and loss analysis of loosely coupled transformer for an underwater high-power inductive power transfer system,” IEEE Trans. Magn., vol. 51, no. 7, pp. 1–10, Jul. 2015.
[12]
M. Kline, I. Izyumin, B. Boser, and S. Sanders, “Capacitive Power Transfer for Contactless Charging,” in Proc. IEEE Appl. Power Electron. Conf. Expo., pp. 1398-1404, Fort Worth, TX, Mar. 2011.
[13]
Y. Naka, K. Yamamoto, T. Nakata, M. Tamura, and M. Masuda, “Verification efficiency of electric coupling wireless power transfer in water,” in Proc. IEEE MTT-S Int. Conf. on Microwaves for Intelligent Mobility, Nagoya, Japan, Mar. 2017, pp. 83−86.
[14]
R. Somaraju and J. Trumpf, “Frequency, Temperature and Salinity Variation of the Permittivity of Seawater,” IEEE transactions on Antennas and Propagation, Vol. 54, no. 11, pp. 3441-3448, 2006.
[15]
H. Fukuda, N. Kobayashi, K. Shizuno, S. Yoshida, M. Tanomura, Y. Hama, "New Concept of an Electromagnetic Usage for Contactless Communication and Power Transmission in the Ocean", IEEE International Underwater Tech. Symp., 2013.
Browse journals by subject