Digitally controlled peak current mode parallel DC-DC converter for HVDC system

Author

Kurokawa, Fujio ; Kajiwara, Kagemasa ; Maruta, Hidenori ; Shibata, Yoshitaka ; Yamabe, Y. ; Tanaka, T. ; Hirose, Keikichi

Author_Institution

Nagasaki Univ., Nagasaki, Japan

fYear

2013

Firstpage

1609

Lastpage

1612

Abstract

The purpose of this paper is to present the demonstration of digitally controlled peak current mode parallel dc-dc converter for the higher voltage direct current (HVDC) system. The peak current mode control circuit is only composed of the RC integrator and comparator. It can detect the peak current in real time. A prototype uses 800W phase-shifted full-bridge zero volt switching (ZVS) dc-dc converter. The digital control circuit is implemented by the field programmable gate array (FPGA) except the A-D conversion of output voltage. In this paper, the prototype tests the transient response by the experiment. Experimental results show that the prototype has superior transient response and it is suitable for switching power supplies for the HVDC system.

Keywords

DC-DC power convertors; HVDC power convertors; comparators (circuits); digital control; electric current control; field programmable gate arrays; transient response; zero voltage switching; FPGA; HVDC system; RC integrator; ZVS; comparator; digital control circuit; field programmable gate array; higher voltage direct current system; parallel DC-DC converter; peak current mode control circuit; phase-shifted full-bridge zero volt switching; power 800 W; switching power supplies; transient response; Convergence; Delays; Digital control; HVDC transmission; Prototypes; Switches; Transient response; HVDC; digital control; parallel dc-dc converters; peak current mode;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering, Energy and Electrical Drives (POWERENG), 2013 Fourth International Conference on

Conference_Location

Istanbul

ISSN

2155-5516

Type

conf

DOI

10.1109/PowerEng.2013.6635857

Filename

6635857