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Coil design for high misalignment tolerant inductive power transfer system for EV charging

Kalwar, Kafeel Ahmed, Mekhilef, Saad, Seyedmahmoudian, Mehdi and Horan, Ben 2016, Coil design for high misalignment tolerant inductive power transfer system for EV charging, Energies, vol. 9, no. 11, Article Number : 937, pp. 1-13, doi: 10.3390/en9110937.

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Title Coil design for high misalignment tolerant inductive power transfer system for EV charging
Author(s) Kalwar, Kafeel Ahmed
Mekhilef, Saad
Seyedmahmoudian, Mehdi
Horan, BenORCID iD for Horan, Ben orcid.org/0000-0002-6723-259X
Journal name Energies
Volume number 9
Issue number 11
Season Article Number : 937
Start page 1
End page 13
Total pages 13
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2016
ISSN 1996-1073
Keyword(s) electric vehicle (EV)
inductive power transfer (IPT)
misalignment tolerance
Science & Technology
Technology
Energy & Fuels
WIRELESS POWER
BATTERY CHARGER
MAGNETIC-FIELD
EFFICIENT
VEHICLES
PICKUPS
DEVICES
Summary The inductive power transfer (IPT) system for electric vehicle (EV) charging has acquired more research interest in its different facets. However, the misalignment tolerance between the charging coil (installed in the ground) and pick-up coil (mounted on the car chassis), has been a challenge and fundamental interest in the future market of EVs. This paper proposes a new coil design QDQ (Quad D Quadrature) that maintains the high coupling coefficient and efficient power transfer during reasonable misalignment. The QDQ design makes the use of four adjacent circular coils and one square coil, for both charging and pick-up side, to capture the maximum flux at any position. The coil design has been modeled in JMAG software for calculation of inductive parameters using the finite element method (FEM), and its hardware has been tested experimentally at various misaligned positions. The QDQ coils are shown to be capable of achieving good coupling coefficient and high efficiency of the system until the misalignment displacement reaches 50% of the employed coil size.
Language eng
DOI 10.3390/en9110937
Field of Research 090607 Power and Energy Systems Engineering (excl Renewable Power)
090601 Circuits and Systems
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30090610

Document type: Journal Article
Collections: School of Engineering
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.