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author:

Qu, Yuhu (Qu, Yuhu.) [1] | Zhang, Bo (Zhang, Bo.) [2] | Gu, Wenchao (Gu, Wenchao.) [3] | Li, Jianguo (Li, Jianguo.) [4] | Shu, Xujian (Shu, Xujian.) [5] (Scholars:疏许健)

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EI Scopus SCIE

Abstract:

The application of wireless power transfer (WPT) has become more and more extensive, and the parity-time (PT) symmetric principle has been proved to significantly improve the degree of freedom of the WPT system without increasing the control complexity. However, the PT-symmetric region of the original WPT system with series-series (SS) compensation is limited. To overcome this drawback, a novel PT-symmetric WPT system with series-parallel-series (S-PS) compensation is proposed in this brief. The PS compensation network is converted to the S compensation network by equivalent circuit method. Then a mathematical model of the proposed system is established by circuit theory. It is found that the critical coupling coefficient of the proposed system are much smaller than the original PT-symmetric system. Furthermore, the proposed system has a compromise between transmission distance and transfer efficiency by setting the capacitance distribution ratio. A 26W prototype is built to verify the feasibility of the proposed method. Experimental results demonstrate that the proposed method doubles the transmission distance and improves the output power.

Keyword:

distance extension parity-time (PT) symmetry S-PS compensation wireless power transfer (WPT)

Community:

  • [ 1 ] [Qu, Yuhu]South China Univ Technol, Sch Elect Power, Guangzhou 510640, Peoples R China
  • [ 2 ] [Zhang, Bo]South China Univ Technol, Sch Elect Power, Guangzhou 510640, Peoples R China
  • [ 3 ] [Gu, Wenchao]South China Univ Technol, Sch Elect Power, Guangzhou 510640, Peoples R China
  • [ 4 ] [Li, Jianguo]South China Univ Technol, Sch Elect Power, Guangzhou 510640, Peoples R China
  • [ 5 ] [Shu, Xujian]Fuzhou Univ, Coll Elect Engn & Automat, Fuzhou 350000, Peoples R China

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Source :

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS

ISSN: 1549-7747

Year: 2023

Issue: 8

Volume: 70

Page: 2954-2958

4 . 0

JCR@2023

4 . 0 0 0

JCR@2023

ESI Discipline: ENGINEERING;

ESI HC Threshold:35

JCR Journal Grade:2

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 5

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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