Title :
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
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;
Conference_Titel :
Telecommunications Energy Conference, 1995. INTELEC '95., 17th International
Conference_Location :
The Hague
Print_ISBN :
0-7803-2750-0
DOI :
10.1109/INTLEC.1995.499049
