A high efficiency and compact inductive power transfer system compatible with both 3.3kW and 7.7kW receivers

Fei Lu, Hua Zhang, Tianze Kan, Heath Hofmann, Ying Mei, Li Cai, Chris Mi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

19 Scopus citations

Abstract

This paper proposes a high-efficiency, compact inductive power transfer (IPT) system for the stationary charging of electric vehicles, which contains a single transmitter and two receivers of different power. The transmitter is compatible with both 3.3kW and 7.7kW receivers. A double-sided LCC compensation circuit is adopted to realize the IPT system. In the magnetic coupler design, the external compensation inductors are integrated into the main coils without introducing extra magnetic couplings. The design procedure of the circuit parameters is provided, in which high system efficiency is maintained for both the 3.3kW and 7.7kW receivers. A prototype is implemented to validate the proposed system. The transmitter coil size is 500mm×500mm, the 3.3kW receiver coil size is 300mm×300mm, and the 7.7kW receiver size is 420mm×420mm. When the air-gap is 150mm, the 3.3kW receiver system achieves a dc-dc efficiency of 95.4%, and the 7.7kW receiver system achieves a dc-dc efficiency of 95.2%.

Original languageEnglish (US)
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3669-3673
Number of pages5
ISBN (Electronic)9781509053667
DOIs
StatePublished - May 17 2017
Externally publishedYes
Event32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States
Duration: Mar 26 2017Mar 30 2017

Publication series

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

Conference

Conference32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Country/TerritoryUnited States
CityTampa
Period3/26/173/30/17

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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