Comparative Analysis of Charging Modes of Series-Resonant Converter for an Energy Storage Capacitor

Author

Byungha Lee ; Hanju Cha

Author_Institution

Chungnam Nat. Univ., Daejeon, South Korea

Volume

41

Issue

3

fYear

2013

fDate

Mar-13

Firstpage

570

Lastpage

577

Abstract

This paper discusses charging modes of series-resonant converter (SRC) for an energy storage capacitor in terms of charging time, losses of switch, normalized peak resonant current, normalized peak resonant voltage, and switch utilization in three operational modes. Principles of operation on the full-bridge SRC with capacitor load are explained, and charging characteristics in discontinuous and continuous operational modes are analyzed. Based on the analysis and the simulation focused on the aforementioned five performance indexes, ms = 0.5 is evaluated to be the optimized operating frequency ratio for charging an energy storage capacitor. A 1.8-kJ/s SRC prototype is assembled with the TI 28335 DSP controller and a 40-kJ 7-kV capacitor. Design rules based on the comparative analysis are verified by experiment.

Keywords

capacitor storage; resonant power convertors; SRC charging mode; charging mode comparative analysis; charging time; continuous operational mode; discontinuous operational mode; energy 40 kJ; energy storage capacitor; full-bridge SRC; normalized peak resonant current; normalized peak resonant voltage; optimized operating frequency ratio; series-resonant converter; switch loss; switch utilization; the TI 28335 DSP controller; voltage 7 kV; Capacitors; Energy storage; Insulated gate bipolar transistors; Resonant frequency; Switches; Switching frequency; Zirconium; Capacitor charging power supply (CCPS); energy storage capacitor; series-resonant converter (SRC);

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2013.2242098

Filename

6472800