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Interoperability Analysis and Improvement for Rectangular Coil and DD Coil of Wireless EV Charging

  • School of Electrical Engineering and Automation, Harbin Institute of Technology
  • State Grid Corporation of China
  • State Grid Beijing Power Research Institute

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

Abstract

Wireless charging technology for electric vehicles (EVs) has been investigated by lots of researchers. One of the key points of the technology is to ensure the interoperability between different vehicle assembly (VA) and ground assembly (GA). This paper describes the interoperability of different coils using coupling coefficient and efficiency by theoretical calculation, simulation and experiments. It is concluded that the interoperability between rectangular and DD coils is related to relative position of coils. Therefore, an adaptive position adjustment method using PO algorithm and coupling coefficient estimation is proposed. By searching the optimal charging location, the output power and efficiency can be high when DD coil charges with rectangular coil. The experimental results agree with the theoretical analysis, which implies that the interoperability between two coils is improved by the proposed method.

Original languageEnglish
Title of host publication2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728133980
DOIs
StatePublished - Aug 2019
Externally publishedYes
Event22nd International Conference on Electrical Machines and Systems, ICEMS 2019 - Harbin, China
Duration: 11 Aug 201914 Aug 2019

Publication series

Name2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019

Conference

Conference22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Country/TerritoryChina
CityHarbin
Period11/08/1914/08/19

Keywords

  • DD coil
  • PO algorithm
  • interoperability
  • rectangular coil
  • wireless EV charging

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