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Ball-Joint Wireless Power Transfer Systems

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Title: Ball-Joint Wireless Power Transfer Systems
Authors: Zhang, C
Lin, D
Hui, SYR
Item Type: Journal Article
Abstract: A new wireless power transfer (WPT) system based on ball-joint structure is presented in this paper. A ball-joint WPT system consists of a ball structure with a mechanical rod attached to the ball and a ball socket that accommodates the ball structure. This ball-joint structure comprises at least one winding in the ball structure and at least one winding in the ball socket structure. The ball structure can be flexibly rotated over a wide range of angle inside the ball socket, while wireless power can still be transferred from the transmitter winding to the receiver winding through magnetic resonance. The magnetic coupling coefficient between the transmitter and receiver coil over a wide rotating angular range has been analyzed and experimentally checked. Experimental results confirm that an energy efficiency of up to 81% can be achieved.
Issue Date: 3-May-2017
Date of Acceptance: 1-May-2017
URI: http://hdl.handle.net/10044/1/55889
DOI: https://dx.doi.org/10.1109/TPEL.2017.2700898
ISSN: 0885-8993
Publisher: Institute of Electrical and Electronics Engineers
Start Page: 65
End Page: 72
Journal / Book Title: IEEE Transactions on Power Electronics
Volume: 33
Issue: 1
Copyright Statement: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: Science & Technology
Technology
Engineering, Electrical & Electronic
Engineering
Ball-joint structure
magnetic resonance
wireless power transfer (WPT)
CONTACTLESS BATTERY CHARGER
DESIGN
TRANSMISSION
PLATFORM
0906 Electrical And Electronic Engineering
Electrical & Electronic Engineering
Publication Status: Published
Appears in Collections:Electrical and Electronic Engineering
Faculty of Engineering