Three-loop control for multimodule converter systems

Author

Choi, Byungcho ; Cho, Bo H. ; Lee, Fred C. ; Ridley, Raymond B.

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

8

Issue

4

fYear

1993

fDate

10/1/1993 12:00:00 AM

Firstpage

466

Lastpage

474

Abstract

A three-loop control scheme for multimodule power converter systems with a secondary LC filter is presented. In addition to output voltage and inductor current feedback, the control scheme employs feedback from the output capacitor of each module to improve the dynamic performance of the system, particularly the transient response in the event of failure of a module. The superiority of the three-loop control over the conventional two-loop current mode control is demonstrated by both small-signal analysis and large-signal simulations

Keywords

control system analysis; electric current control; feedback; filters; power convertors; transient response; voltage control; buck; current control; dynamic performance; failure; feedback; large-signal simulations; multimodule power converter; output capacitor; secondary LC filter; small-signal analysis; three-loop control; transient response; voltage control; Buck converters; Capacitors; Control systems; Filters; Inductors; Output feedback; Resonance; Stability; Transient response; Voltage control;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.261017

Filename

261017