Design and Implementation of a High Power Density Three-Level Parallel Resonant Converter for Capacitor Charging Pulsed-Power Supply

Author

Sheng, Honggang ; Shen, Wei ; Wang, Hongfang ; Fu, Dianbo ; Pei, Yunqing ; Yang, Xu ; Wang, Fei ; Boroyevich, Dushan ; Lee, Fred C. ; Tipton, C. Wesley

Author_Institution

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

Volume

39

Issue

4

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

1131

Lastpage

1140

Abstract

This paper describes the design and implementation of a prototype 30-kW (or 30-kJ/s) pulsed-power supply for capacitor charging. The system operates at 200-kHz maximum switching frequency, which is considerably higher than the conventional practice at this power level, leading to smaller passive components. A high power density of 143 W/in³ is achieved with the converter operating at a high ambient temperature of 65°C with 90°C cooling oil, by utilizing various technologies on topology, control, devices, passives, and thermal management. The experimental results demonstrate that the converter meets the performance requirements while achieving a high power density.

Keywords

power capacitors; power convertors; pulsed power supplies; capacitor charging pulsed-power supply; cooling oil; frequency 200 kHz; high power density three-level parallel resonant converter; power 30 kW; temperature 65 C to 90 C; thermal management; Capacitors; Circuit faults; Converters; Schottky diodes; Switching frequency; Topology; Windings; Capacitor charging; power density; pulsed-power supply; resonant converter;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2011.2108319

Filename

5722042