An LCL-N compensated strongly-coupled wireless power transfer system for high-power applications

Yiming Zhang, Zhengchao Yan, Ziwei Liang, Siqi Li, Chris Mi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

An LCL-none (LCL-N) topology is proposed in this paper for high-power strongly-coupled wireless charging systems. The receiver-side compensation is eliminated to achieve a compact and lightweight receiver. The efficiency is still high due to the strongly-coupled characteristic. The phase difference between the transmitter and receiver currents is larger than 90°, leading to the magnetic flux cancelation in the ferrites. Thus, the required ferrite thickness of the LCL-N topology is smaller than the fully-compensated topologies. Therefore, a compact, lightweight, and low-cost receiver is achieved. The model of the LCL-N topology is built and the output power and the efficiency are analyzed. A full-scaled system of 100 kW is designed and simulated. A downscaled 1 kW system is implemented. The simulations and experiments have verified the effectiveness of the analysis.

Original languageEnglish
Title of host publication34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3088-3091
Number of pages4
ISBN (Electronic)9781538683309
DOIs
StatePublished - 24 May 2019
Externally publishedYes
Event34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States
Duration: 17 Mar 201921 Mar 2019

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2019-March

Conference

Conference34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Country/TerritoryUnited States
CityAnaheim
Period17/03/1921/03/19

Keywords

  • Compact
  • High power
  • LCL-N compensation
  • Strong coupling
  • Wireless power transfer (WPT)

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