6.6-kW Onboard Charger Design Using DCM PFC Converter With Harmonic Modulation Technique and Two-Stage DC/DC Converter

Author

Jun-Young Lee ; Hyung-Jun Chae

Author_Institution

Dept. of Electron. Eng., Myongji Univ., Yongin, South Korea

Volume

61

Issue

3

fYear

2014

fDate

Mar-14

Firstpage

1243

Lastpage

1252

Abstract

This paper suggests another candidate for high-power onboard charger for electric vehicles. It is based on a discontinuous conduction mode (DCM) power factor correction (PFC) converter with harmonic modulation technique that improves the power factor in DCM PFC operation and a two-stage dc/dc converter composed of a resonant converter and a DCM buck converter. Separating the functions of the dc/dc stage into control and isolation helps to reduce the transformer by using high-frequency resonance. The feasibility of the proposed charger has been verified with a 6.6-kW prototype.

Keywords

DC-DC power convertors; battery chargers; electric vehicles; power factor correction; DCM PFC converter; DCM buck converter; discontinuous conduction mode; electric vehicles; harmonic modulation technique; high-frequency resonance; high-power onboard charger; power 6.6 kW; power factor correction; resonant converter; two-stage dc-dc converter; AC/DC converter; LLC converter; battery charger;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2013.2262749

Filename

6515371