A high power-density, high efficiency front-end converter for capacitor charging applications

Author

Wang, Chuanyun ; Kang, Yonghan ; Lu, Bing ; Sun, Juanjuan ; Xu, Ming ; Dong, Wei ; Lee, Fred C. ; Tipton, Wesley C.

Author_Institution

Center for Power Electron. Syst., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

2

fYear

2005

fDate

6-10 March 2005

Firstpage

1258

Abstract

This paper introduces a high power-density, high-efficiency isolated full-bridge boost converter, which is used for the front-end converter of a capacitor charger. The design equations, design considerations and practical trade-offs for the converter power stage are summarized. In addition, by fully taking advantage of the pulsed load profile, a transformer design using a high-saturation flux density material is introduced to maximize the power density. The principle of operation for the converter is analyzed and verified on a 15 kW, 100 kHz front-end converter prototype.

Keywords

bridge circuits; power capacitors; power convertors; power transformers; 100 kHz; 15 kW; boost converter; capacitor charger; power-density; pulsed load profile; saturation flux density; transformer design; Batteries; Equations; Power capacitors; Power systems; Prototypes; Pulse transformers; Stress; Thermal management; Topology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2005. APEC 2005. Twentieth Annual IEEE

Print_ISBN

0-7803-8975-1

Type

conf

DOI

10.1109/APEC.2005.1453165

Filename

1453165