Closed-loop design for two parallel connected converters with power factor correction

Author

Zhu, Guangyong ; Wei, Huai ; Iannello, Chris ; Batarseh, Issa

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Central Florida, Orlando, FL, USA

Volume

2

fYear

1999

fDate

1999

Firstpage

698

Abstract

A large signal simulation for two parallel converters in a distributed power supply system is presented in this paper. The distributed system is composed of switched-mode power factor correction (PFC) converters utilizing a central limit control technique. This technique allows one voltage loop compensator to be shared by all the PFC converters. Design of such a compensator is discussed and the system performances with regard to unequal cable resistances and load changes are reported. The resulting system achieves a power factor of about 0.98 and provides an excellent current sharing between the two converter modules

Keywords

closed loop systems; control system analysis; control system synthesis; power convertors; power factor correction; power supplies to apparatus; voltage control; central limit control technique; control design; control simulation; current sharing performance; distributed power supply system; large signal simulation; load changes; parallel-connected power converters; power factor correction; unequal cable resistance; voltage loop compensator; Control systems; IEC standards; Impedance; Manufacturing; Power factor correction; Power supplies; Pulse width modulation; Reactive power; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE

Conference_Location

Charleston, SC

ISSN

0275-9306

Print_ISBN

0-7803-5421-4

Type

conf

DOI

10.1109/PESC.1999.785585

Filename

785585