Implementation of high efficiency batteries charger for EV based on PWM rectifier

Author

Zhang Yingchao ; Long Jiangtao ; Gong Wei ; Liu Yang ; Zhao Bo

Author_Institution

Chongqing Commun. Inst., Chongqing, China

fYear

2012

fDate

9-12 Oct. 2012

Firstpage

1525

Lastpage

1528

Abstract

This paper describes a power electronic system used to charge electric vehicle (EV) batteries. To achieve the requirements of high power factor and efficiency, two power converter units are adopted. The PWM rectifier with direct power control based on space vector PWM (DPC-SVM) in the front-end and full-bridge (FB) converter with phase-shifted zero-voltage zero-current-switching (ZVZCS) in the back-end are applied. Decoupling control for instantaneous active and reactive powers of the grid is realized. Experimental results in 8kW prototype show that during the whole charging process, the system efficiency is higher than 85.3% and the input power factor is higher than 99.4%.

Keywords

PWM power convertors; PWM rectifiers; battery powered vehicles; reactive power control; zero current switching; zero voltage switching; DPC-SVM; EV batteries; FB converter; PWM rectifier; ZVZCS; decoupling control; electric vehicle batteries; front-end converter; full-bridge converter; high efficiency batteries charger; phase-shifted zero-voltage zero-current-switching; power 8 kW; power converter units; power efficiency; power electronic system; power factor; powers grid; reactive powers; space vector PWM; Batteries; Pulse width modulation; Rectifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicle Power and Propulsion Conference (VPPC), 2012 IEEE

Conference_Location

Seoul

Print_ISBN

978-1-4673-0953-0

Type

conf

DOI

10.1109/VPPC.2012.6422584

Filename

6422584