Magnetic design of a three-phase wireless power transfer system for EMF reduction

Author

Minho Kim ; Seungyoung Ahn ; Hongseok Kim

Author_Institution

Cho Chun Shik Grad. Sch. for Green Transp., KAIST, Daejeon, South Korea

fYear

2014

fDate

8-9 May 2014

Firstpage

17

Lastpage

20

Abstract

Wireless charging of electric vehicles (EV) by means of the wireless power transfer (WPT) is becoming increasingly popular in the recent years. And the electromagnetic field (EMF) should be lowered for the safety of pedestrians. In this paper, a new three-phase WPT structure is proposed. It is compared with the single phase WPT structure to demonstrate the advantages of the proposed structure in the magnetic field distributions and system performance. The simulation results using the 3D finite element analysis (FEA) tool show that it can considerably suppress the leakage magnetic field from the WPT system with the enhanced performance.

Keywords

electric vehicles; electromagnetic fields; finite element analysis; inductive power transmission; 3D finite element analysis tool; EMF reduction; EV; FEA tool; electric vehicles; electromagnetic field; leakage magnetic field suppression; magnetic design; magnetic field distributions; pedestrians; three-phase WPT structure; three-phase wireless power transfer system; wireless charging; Coils; Load modeling; Magnetic fields; Magnetic flux; Three-dimensional displays; Vehicles; Wireless communication; Wireless power transfer; electric vehicle; electromagnetic field; magnetic coupling;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Power Transfer Conference (WPTC), 2014 IEEE

Conference_Location

Jeju

Type

conf

DOI

10.1109/WPT.2014.6839617

Filename

6839617