Control characteristics improvement of full-bridge DC-DC converter with snubber capacitor

Author

Domoto, Kazuhide ; Ishizuka, Yoichi ; Abe, Shigeto ; Ninomiya, Tamotsu

Author_Institution

Grad. Sch. of Eng., Nagasaki Univ., Nagasaki, Japan

fYear

2014

fDate

18-21 May 2014

Firstpage

3652

Lastpage

3658

Abstract

A high-voltage full bridge dc-dc converter has a big problem of high-voltage surge occurrence across secondary-side rectifying diodes. In order to solve this problem, a simple solution with a snubber capacitor has been proposed. This technique provides a prominent effect of surge-voltage suppression. On the other hand, it deteriorates the control characteristics of this converter. In this paper, the control characteristics are analyzed by the state-space averaging method. Based on this analytical result, the improvement of the control characteristics is proposed. Some experiments confirm the effectiveness of the proposed technique.

Keywords

DC-DC power convertors; bridge circuits; capacitors; diodes; rectifying circuits; snubbers; state-space methods; surge protection; voltage control; full-bridge DC-DC converter control characteristics improvement; rectifying diode; snubber capacitor; state-space averaging method; surge-voltage suppression; Capacitors; HVDC transmission; MOSFET; Rectifiers; Snubbers; Surges; Voltage control; Control Characeristics; Full-Bridge DC-DC Converter; Snubber Capacitor; Surge Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA), 2014 International

Conference_Location

Hiroshima

Type

conf

DOI

10.1109/IPEC.2014.6870023

Filename

6870023