An Inductive Power Transfer System Design with Large Misalignment Tolerance for EV Charging

Zhuhaobo Zhang, Philip T. Krein, Hao Ma, Yunvu Tang, Jing Zhou, Dehong Xu

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

Abstract

Inductive power transfer (IPT) technology is becoming more and more attractive for electric vehicle charging due to its safe, flexible and convenient features. The main drawback of IPT system is the large leakage inductance, especially when there is misalignment between the pads. The misalignment reduces coupling and reduces the overall efficiency. This paper proposes an IPT system with large misalignment tolerance which combines the characteristics of a new solenoidal-bipolar transformer and a parallel circuit topology for the secondary side. The system design and performance are simulated with a 3D finite element modeling (FEM) tool and experimentally verified on a 3kW prototype. A 350 mm misalignment tolerance range for either lateral or vertical direction is achieved with a 600 mm2transformer and a 200 mm air gap.

Original languageEnglish (US)
Title of host publicationProceedings - 2018 IEEE 27th International Symposium on Industrial Electronics, ISIE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1011-1016
Number of pages6
ISBN (Print)9781538637050
DOIs
StatePublished - Aug 10 2018
Event27th IEEE International Symposium on Industrial Electronics, ISIE 2018 - Cairns, Australia
Duration: Jun 13 2018Jun 15 2018

Publication series

NameIEEE International Symposium on Industrial Electronics
Volume2018-June

Other

Other27th IEEE International Symposium on Industrial Electronics, ISIE 2018
CountryAustralia
CityCairns
Period6/13/186/15/18

Keywords

  • Inductive power transfer
  • coupling coefficient
  • electric vehicle charging
  • misalignment tolerance

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering

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  • Cite this

    Zhang, Z., Krein, P. T., Ma, H., Tang, Y., Zhou, J., & Xu, D. (2018). An Inductive Power Transfer System Design with Large Misalignment Tolerance for EV Charging. In Proceedings - 2018 IEEE 27th International Symposium on Industrial Electronics, ISIE 2018 (pp. 1011-1016). [8433592] (IEEE International Symposium on Industrial Electronics; Vol. 2018-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISIE.2018.8433592