A new current controller of three-level rectifier by H∞ optimization

Author

Su, Weifeng ; Liu, Congwei ; Sun, Xudong ; Li, Fahai

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

Volume

3

fYear

2003

Firstpage

1766

Abstract

Current control strategy is a key step in the control of rectifiers. Based on the discrete modeling of current control of rectifier, a novel current controller designed by discrete H∞ optimization is presented in this paper, which can minimize the effect of parameter variation and control period. The simulation and experimental results show that the novel controller operates robustly with parameters variation, and also produces better dynamic performance in various control periods, compared with classic PI controller and cross-coupling controller.

Keywords

AC-DC power convertors; H^∞ control; control system analysis; control system synthesis; discrete systems; electric current control; rectifying circuits; robust control; H∞ optimization; control design; control period; control simulation; discrete modeling; dynamic performance; parameter variation; parameters variation robustness; three-level rectifier current controller; Closed loop systems; Design optimization; Equivalent circuits; Power system modeling; Reactive power; Rectifiers; Robust control; Sun; Transfer functions; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines and Drives Conference, 2003. IEMDC'03. IEEE International

Print_ISBN

0-7803-7817-2

Type

conf

DOI

10.1109/IEMDC.2003.1210691

Filename

1210691