A Promoted Design for Primary Coil in Roadway-Powered System

Author

Zhong Chen ; Wuwei Jing ; Xueliang Huang ; Linlin Tan ; Chen Chen ; Wei Wang

Author_Institution

Sch. of Electr. Eng., Southeast Univ., Nanjing, China

Volume

51

Issue

11

fYear

2015

Firstpage

1

Lastpage

4

Abstract

As technology advances, electric vehicle (EV) dynamic charging utilizing wireless power transfer (WPT) becomes prevalent. This new power supply mode allows running cars to be charged with electricity at any time on the road. Unlike traditional tramcars, the EVs can be free from rail limitation, and WPT technology provides maximal charging flexibility. This paper studies a WPT charging system, which uses a series of sectional primary coils. The relationship between primary coil size and transfer efficiency is fully explored. On the basis of sectional wireless power supply, the lateral movement of transfer coils is reported, and a promoted design for the primary coil that provides power for a two-lane road simultaneously is proposed.

Keywords

battery powered vehicles; coils; inductive power transmission; road vehicles; secondary cells; EV dynamic charging; WPT charging system; WPT technology; electric vehicle; power supply mode; roadway-powered system; sectional primary coils; sectional wireless power supply; tramcars; transfer coils; two-lane road; wireless power transfer; Couplings; Inductance; Magnetic resonance; Roads; Vehicle dynamics; Vehicles; Wireless communication; Dynamic charging; Wireless power transfer; dynamic charging; lateral deviation; mutual inductance; promoted design; wireless power transfer (WPT);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2015.2440481

Filename

7116568