DocumentCode
25489
Title
A Bidirectional Wireless Power Transfer EV Charger Using Self-Resonant PWM
Author
Jun-Young Lee ; Byung-Moon Han
Author_Institution
Dept. of Electron. Eng., Myongji Univ., Yongin, South Korea
Volume
30
Issue
4
fYear
2015
fDate
Apr-15
Firstpage
1784
Lastpage
1787
Abstract
This letter suggests a large air-gap bidirectional wireless power transfer charger for electric vehicle. It is controlled by pulse width modulation with a self-resonant frequency formed by self-inductance and resonant capacitor so that constant frequency operation can be accomplished under large air-gap without additional current chopper. The feasibility of the proposed method has been verified with a 6.6-kW prototype with air-gap of 12-20 cm.
Keywords
battery chargers; capacitors; electric vehicles; inductive power transmission; bidirectional wireless power transfer EV charger; constant frequency operation; electric vehicle; large air-gap bidirectional wireless power transfer charger; power 6.6 kW; pulse width modulation; resonant capacitor; self-inductance; self-resonant PWM; self-resonant frequency; Air gaps; Batteries; Coils; Frequency control; Pulse width modulation; Resonant frequency; Wireless communication; Battery charger; bidirectional converter; wireless power transfer (WPT);
fLanguage
English
Journal_Title
Power Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0885-8993
Type
jour
DOI
10.1109/TPEL.2014.2346255
Filename
6945422
Link To Document