DocumentCode :
2008114
Title :
A 90 percent efficient 5kW inductive charger for EVs
Author :
Wu, Hunter H. ; Gilchrist, Aaron ; Sealy, Ky ; Bronson, Daniel
fYear :
2012
fDate :
15-20 Sept. 2012
Firstpage :
275
Lastpage :
282
Abstract :
This paper presents the design of a 5kW inductive charging system for electric vehicles (EVs). Over 90% efficiency is maintained from grid to battery across a wide range of coupling conditions at full load. Experimental measurements show that the magnetic field strength meets the stringent International Commission on Non-Ionizing Radiation Protection (ICNIRP) guidelines for human safety. In addition, a new dual side control scheme is proposed to optimize system level efficiency. Experimental validation showed that a 7% efficiency increase and 25% loss reduction under light load conditions is achievable. The authors believe this paper is the first to show such high measured efficiencies for a level 2 inductive charging system. Performance of this order would indicate that inductive charging systems are reasonably energy efficient when compared to the efficiency of plug-in charging systems.
Keywords :
electric vehicles; magnetic fields; EV; ICNIRP guidelines; coupling conditions; dual side control scheme; electric vehicles; human safety; level 2 inductive charging system; magnetic field strength; plug-in charging systems; power 5 kW; stringent International Commission on Non-Ionizing Radiation Protection; system level efficiency optimization; Batteries; Control systems; Couplings; Inductance; RLC circuits; Resistance; Vehicles; Inductive Charging; Inductive Power Transfer; Resonant Power Conversion;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2012 IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
978-1-4673-0802-1
Electronic_ISBN :
978-1-4673-0801-4
Type :
conf
DOI :
10.1109/ECCE.2012.6342812
Filename :
6342812
Link To Document :
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