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author:

Zhang, Y. (Zhang, Y..) [1] | Huang, Z. (Huang, Z..) [2] | Shen, Z. (Shen, Z..) [3] | Xie, R. (Xie, R..) [4] | Chen, X. (Chen, X..) [5] | Mao, X. (Mao, X..) [6]

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Scopus

Abstract:

—In wireless power transfer (WPT) systems for electric vehicles (EVs), interoperability and misalignment tolerance for different receiving charging terminals meet great demands. In this paper, a hybrid topology with a vector synthesis strategy and highly integrated magnetic couplers are proposed to achieve misalignment tolerance and interoperability for unipolar (Q), bipolar (DD), and quadrupolar (QUA) coils over the X and Y misalignments. By adjusting the phase angles of the four half-bridge inverters under different misalignments, the output voltage fluctuation can be limited. The mathematical model of the proposed hybrid topology is established and the vector synthesis strategy is introduced. The magnetic couplers and the design principle are presented. A 2-kW prototype is built to verify the proposed system. The experimental results demonstrate that the output voltage fluctuation under misalignments is less than 3.1% for the Rx Q coil, 3.3% for the Rx DD coil, and 4.3% for the Rx QUA coil, and the peak efficiency is 89.3%. © 2025 IEEE.

Keyword:

highly integrated magnetic couplers hybrid topology interoperability misalignment tolerance vector synthesis strategy Wireless power transfer (WPT)

Community:

  • [ 1 ] [Zhang Y.]School of Electrical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Huang Z.]School of Electrical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Shen Z.]School of Electrical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Xie R.]School of Electrical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [Chen X.]School of Electrical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Mao X.]School of Electrical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China

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Source :

IEEE Transactions on Power Electronics

ISSN: 0885-8993

Year: 2025

6 . 6 0 0

JCR@2023

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ESI Highly Cited Papers on the List: 0 Unfold All

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30 Days PV: 5

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