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author:

Liu, Zhu (Liu, Zhu.) [1] | Chen, Zhizhang (Chen, Zhizhang.) [2] | Peng, Cheng (Peng, Cheng.) [3] | Liang, Jingcheng (Liang, Jingcheng.) [4] | Xiao, Pei (Xiao, Pei.) [5] | Bian, Lian (Bian, Lian.) [6] | Qiu, Yongfeng (Qiu, Yongfeng.) [7] | Li, Gaosheng (Li, Gaosheng.) [8]

Indexed by:

SCIE

Abstract:

Misalignments between the transmitting and receiving coils of a wireless power system can significantly reduce power transfer efficiency (PTE). In this communication, we propose a novel magnetically coupled resonant wireless power transfer (MCR-WPT) system with good misalignment tolerance for wireless charging applications. Specifically, we employ three interconnected planar coils to form a transmitter that produce multiple paths of magnetic flux linkages and power to the receiver even in angular and lateral misalignment positions. Unlike other methods, no additional control circuits are needed so that the circuit can be easily realized and implemented. A prototype is simulated, fabricated, and tested. It has a wide angular misalignment range of 165 degrees for the PTE of 20% or higher, which is 30% higher than 126 degrees of the conventional system. It also has a wide lateral misalignment range of 180 mm for the PTE of 20% or higher, which is 73% higher than 104 mm of the conventional system. Thus, the proposed system presents a good and simple wireless power delivering system for practical applications in particular in the situations where angular and lateral misalignments occur in various degrees without prior acknowledge.

Keyword:

Angular misalignment Couplings lateral misalignment Magnetic flux Magnetic resonance multicoil Receivers Spirals Transmitters Wireless communication wireless power transfer (WPT)

Community:

  • [ 1 ] [Liu, Zhu]Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Peoples R China
  • [ 2 ] [Xiao, Pei]Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Peoples R China
  • [ 3 ] [Qiu, Yongfeng]Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Peoples R China
  • [ 4 ] [Li, Gaosheng]Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Peoples R China
  • [ 5 ] [Liu, Zhu]Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 611731, Peoples R China
  • [ 6 ] [Peng, Cheng]Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 611731, Peoples R China
  • [ 7 ] [Liang, Jingcheng]Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 611731, Peoples R China
  • [ 8 ] [Chen, Zhizhang]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China
  • [ 9 ] [Chen, Zhizhang]Dalhousie Univ, Dept Elect & Comp Engn, Halifax, NS B3J 2X4, Canada
  • [ 10 ] [Bian, Lian]Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha 410004, Hunan, Peoples R China

Reprint 's Address:

  • 陈志璋

    [Chen, Zhizhang]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China

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Source :

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION

ISSN: 0018-926X

Year: 2020

Issue: 12

Volume: 68

Page: 8260-8265

4 . 3 8 8

JCR@2020

4 . 6 0 0

JCR@2023

ESI Discipline: ENGINEERING;

ESI HC Threshold:132

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 22

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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