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Analysis and design of DD coupler for dynamic wireless charging of electric vehicles

TitleAnalysis and design of DD coupler for dynamic wireless charging of electric vehicles
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2018
AuthorsDashora, H.K., Buja G., Bertoluzzo M., Pinto Rosanna, and Lopresto V.
JournalJournal of Electromagnetic Waves and Applications
Volume32
Pagination170-189
ISSN09205071
KeywordsBattery-powered electric vehicles, Charging (batteries), Closed-form expression, Coupler design, DD coupler properties, Design activity, Electric automobiles, Electric vehicles, Energy Transfer, Finite element method, Inductive power transfer, Inductive power transmission, Magnetic levitation vehicles, Magnetic materials, Wireless charging
Abstract

In dynamic wireless charging (DWC) of battery-powered electric vehicles (BEVs), inductive power transfer takes place between two coils, one buried into the road and the other one installed onboard BEVs. This paper deals with the design of the coils of a lumped DWC system. At first, the concept of polarized coil is explicated and a DWC-suitable structure of polarized coil, namely the double-D (DD) coil, is illustrated. Then, the paper analyzes the inductive properties of a DD coupler and presents its design for a case study. The design embraces the dimensions of the coils and the magnetic cores, thickness included, and usage of bars instead of plates for the cores in order to save magnetic material. After developing closed-form expressions of the inductive parameters of the coils useful for their preliminary sizing, the analysis and design activities are carried out with the assistance of finite element method codes. Relevant results supporting the design are presented by help of tables, maps, and graphs. © 2017 Informa UK Limited, trading as Taylor & Francis Group.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85029901145&doi=10.1080%2f09205071.2017.1373036&partnerID=40&md5=32a957584b90a9830dd960de804556ab
DOI10.1080/09205071.2017.1373036
Citation KeyDashora2018170