Magnetic field design for high efficient and low EMF wireless power transfer in on-line electric vehicle

Author

Ahn, Seungyoung ; Kim, Joungho

Author_Institution

Dept. of EECS, Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

fYear

2011

fDate

11-15 April 2011

Firstpage

3979

Lastpage

3982

Abstract

In this paper, we introduce the On-Line Electric Vehicle (OLEV) system and its non-contact power transfer mechanism. We propose the design methodology to maximize the wireless power transfer capability and power transfer efficiency and to minimize the electromagnetic field (EMF) from the wireless power transfer system in OLEV. By using the series resonant power transfer topology and vertical magnetic flux type of wireless power transfer system for transformer structure, the power transfer capability of 60 kW and efficiency of 80% have been accomplished. Also, by applying passive and active shields, the EMF has been significantly reduced to satisfy the regulation of 62.5 mG.

Keywords

electric vehicles; electromagnetic fields; electromagnetic shielding; magnetic flux; resonance; OLEV system; active shield; design methodology; electromagnetic field; low EMF wireless power transfer system; magnetic field design; noncontact power transfer mechanism; online electric vehicle; passive shield; power 60 kW; power transfer capability; power transfer efficiency; series resonant power transfer topology; transformer structure; vertical magnetic flux; Coils; Electric vehicles; Magnetic fields; Magnetic flux; Metals; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on

Conference_Location

Rome

Print_ISBN

978-1-4577-0250-1

Type

conf

Filename

5782445