Characteristics of a parallel-module high power-factor AC-to-DC converter system with current-balancing controllers

Author

Kohama, Teruhiko ; Ninomiya, Tamotsu ; Shoyama, Masahito

Author_Institution

Dept. of Electron., Kyushu Univ., Fukuoka, Japan

fYear

1995

Firstpage

791

Lastpage

795

Abstract

Characteristics of a parallel-module high power-factor AC-to-DC power converter system using current-balancing controllers are presented. Problems caused by the parallel connection of power factor correction (PFC) power converter modules are discussed. Two types of current-balancing controllers, i.e. conventional and improved, are applied to the parallel-module PFC system to share the load current between the power converter modules. The effectiveness of the current-balancing controllers for the PFC power converter system is confirmed by experiment. The current-balancing controller improved here has fast transient response to load current sharing under dynamic conditions

Keywords

AC-DC power convertors; electric current control; feedback; power factor correction; power system harmonics; rectifying circuits; transient response; current-balancing controllers; dynamic conditions; load current sharing; parallel module AC/DC power converter; transient response; unity power factor; Control system analysis; Control systems; DC-DC power converters; Power supplies; Power system reliability; Reactive power; Rectifiers; Stress control; Transient response; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 1995. INTELEC '95., 17th International

Conference_Location

The Hague

Print_ISBN

0-7803-2750-0

Type

conf

DOI

10.1109/INTLEC.1995.499049

Filename

499049