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Performance Study of Eight-Figure Coils in Wireless Power Transfer System

Xiu Zhang*, Hao Qi, Wenwen Liu, Xin Zhang, Xiaohui Lu

*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

In wireless power transfer (WPT) system, the structure of coils can affect the power and efficiency performance of WPT system. In this paper, transmission coils with different structures is designed and analyzed in magnetically coupled resonant WPT system. An eight-figure coil structure is designed. Moreover, an array is built by two eightfigure coils. The system is simulated under the same magnetic excitation. Finite element method is used to simulate transmitting coils to obtain the distribution of magnetic fields. The current and voltage of eight-figure coil WPT system are analyzed in the case that receiver shifts from middle axis. The current and voltage of from 50 mm and 200 mm above transmitting coil under the same excitation are compared. The results show that eight-figure coil is able to relieve coil misalignment issue in WPT system. Moreover, coil array can reduce the influence of the radial offset to entire WPT system.
Original languageEnglish
Title of host publication2019 IEEE Symposium on Product Compliance Engineering - Asia (ISPCE-CN 2019)
PublisherIEEE
Pages52-55
ISBN (Electronic)9781728163604
ISBN (Print)9781728163611
DOIs
Publication statusPublished - Oct 2019
EventIEEE International Symposium on Product Compliance Engineering-Asia 2019 (ISPCE-CN 2019) - Hong Kong, China
Duration: 23 Oct 201926 Oct 2019
http://tc.ouhk.edu.hk/ISPCE_CN_2019/

Conference

ConferenceIEEE International Symposium on Product Compliance Engineering-Asia 2019 (ISPCE-CN 2019)
PlaceChina
CityHong Kong
Period23/10/1926/10/19
Internet address

Research Keywords

  • wireless power transfer
  • efficiency
  • eight-figure coil
  • coil array
  • DESIGN

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