Low-Frequency Medium Power Capacitor-Free Self-Resonant Wireless Power Transfer

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

1 Scopus Citations
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Author(s)

  • Daniel E. Gaona
  • Yanfeng Shen
  • Hui Zhao
  • K. T. Chau
  • Teng Long

Detail(s)

Original languageEnglish
Pages (from-to)10521-10533
Journal / PublicationIEEE Transactions on Industrial Electronics
Volume68
Issue number11
Online published4 Nov 2020
Publication statusPublished - Nov 2021
Externally publishedYes

Abstract

With the rapid development of wireless power transfer (WPT), the self-resonant WPT system without using additional compensation capacitors has attracted attentions. However, most of reported self-resonant WPT systems have low power transfer (less than 100 W) and high operating frequencies at megahertz. In this paper, four multiple-layer, self-resonant WPT coil pads with different dielectrics are designed and experimentally validated. The aim is to increase the power rating and decrease the operating frequency for capacitor-free WPT system. Analysis of integrated compensation capacitance, inductance, and parasitic capacitance of the coil is provided. Finite Element Analysis (FEA) is used to evaluate four dielectric materials, mica, polypropylene, polyimide, and fiberglass. An experimental setup has been developed, which can achieve more than 360 W power transfer for a 120 mm air gap with an efficiency of 82% and an operating frequency of near 80 kHz.

Research Area(s)

  • Capacitance, capacitor-free, Capacitors, dielectrics, Inductance, Inductors, Receivers, self-resonant, Transmitters, Wireless power transfer

Citation Format(s)

Low-Frequency Medium Power Capacitor-Free Self-Resonant Wireless Power Transfer. / Jiang, Chaoqiang; Gaona, Daniel E.; Shen, Yanfeng; Zhao, Hui; Chau, K. T.; Long, Teng.

In: IEEE Transactions on Industrial Electronics, Vol. 68, No. 11, 11.2021, p. 10521-10533.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review