Next Article in Journal
Modelling Air Compressibility in OWC Devices with Deformable Air Chambers
Previous Article in Journal
Non-Hydrostatic Modeling of Waves Generated by Landslides with Different Mobility
Open AccessArticle

Application of Shielding Coils in Underwater Wireless Power Transfer Systems

by 1,2,*, 1 and 1,2
1
School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
2
Key Laboratory for Unmanned Underwater Vehicle, Northwestern Polytechnical University, Xi’an 710072, China
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2019, 7(8), 267; https://doi.org/10.3390/jmse7080267
Received: 30 June 2019 / Revised: 26 July 2019 / Accepted: 7 August 2019 / Published: 10 August 2019
Underwater wireless power transfer (WPT) technology can enhance the endurance of the autonomous underwater vehicles (AUV). WPT that based on electromagnetic theory will generate eddy current loss (ECL) in seawater. In this paper, we make use of shielding coils to weaken the electromagnetic field (EMF) in seawater, which can reduce ECL and improve the transfer efficiency. Simplified circuit models were proposed to provide an intuitive and comprehensive analysis of the transfer efficiency and the finite element analysis (FEA) was used to simulate the distribution of EMF. We learn that the system with shielding coils performs better when the operating frequency is relatively high by comparing the power transfer efficiency of the underwater WPT systems with and without the shielding, and its maximum efficiency is higher than the system without shielding. The effect of the shielding coils has the similar influence when compared with the metallic plate. While considering the efficiency and weight of coils, the results show that the shielding coils can be used in the underwater WPT system to improve the power transfer efficiency. View Full-Text
Keywords: wireless power transfer (WPT); eddy current loss (ECL); electromagnetic field (EMF); finite element analysis (FEA) wireless power transfer (WPT); eddy current loss (ECL); electromagnetic field (EMF); finite element analysis (FEA)
Show Figures

Figure 1

MDPI and ACS Style

Wang, Y.; Song, B.; Mao, Z. Application of Shielding Coils in Underwater Wireless Power Transfer Systems. J. Mar. Sci. Eng. 2019, 7, 267. https://doi.org/10.3390/jmse7080267

AMA Style

Wang Y, Song B, Mao Z. Application of Shielding Coils in Underwater Wireless Power Transfer Systems. Journal of Marine Science and Engineering. 2019; 7(8):267. https://doi.org/10.3390/jmse7080267

Chicago/Turabian Style

Wang, Yushan; Song, Baowei; Mao, Zhaoyong. 2019. "Application of Shielding Coils in Underwater Wireless Power Transfer Systems" J. Mar. Sci. Eng. 7, no. 8: 267. https://doi.org/10.3390/jmse7080267

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop