Shaped passive magnetic field shaping for roadway IPT

Matthew G.S. Pearce, James D.D. Gawith, Abiezer Tejeda, John T. Boys, Grant A. Covic

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

Abstract

Shaping of the magnetic field between the primary and secondary coils of Inductive Power Transfer Systems is crucial for system performance and to keep leakage within emissions guidelines. This paper gives an overview of different methods used to shape the magnetic field, followed by work done by the authors looking into one of these methods for use in an electric vehicle charging application using in-ground ferrite-less coils. The proposed method uses a short-circuited loop of wire around the main primary coil to shape the magnetic field. The paper focuses on the geometry and distribution of this shorted loop so that the magnetic field can be enhanced in some areas such as between coils and minimised in other areas where people may be near the operating pads. The method is explored through simulation, showing that it can be a useful tool in designing a practical system.

Original languageEnglish
Title of host publication2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016
PublisherIEEE
ISBN (Electronic)9781509015467
DOIs
Publication statusPublished - 9 Feb 2017
Event2nd IEEE Annual Southern Power Electronics Conference, SPEC 2016 - Auckland, New Zealand
Duration: 5 Dec 20168 Dec 2016

Publication series

Name2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016

Conference

Conference2nd IEEE Annual Southern Power Electronics Conference, SPEC 2016
Country/TerritoryNew Zealand
CityAuckland
Period5/12/168/12/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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