Decoupling current control for voltage source converter in synchronous roating frame

Author

Dai, Ke ; Liu, Ping ; Kang, Yong ; Chen, Jian

Author_Institution

Dept. of Appl. Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

1

fYear

2001

fDate

22-25 Oct. 2001

Firstpage

39

Abstract

There may be serious current interactions between d and q-axis in synchronous rotating frame for the three-phase voltage source converter. For the first time, the "relative gain" concept is introduced to analyze the coupling and decoupling quantitatively in this paper. Three different decoupling control methods including cross coupling decoupling, series decoupling and state feedback decoupling algorithms are compared in detail based on the "relative gain" concept. The theoretic results are confirmed by simulating Bode diagram and experiment waveform.

Keywords

Bode diagrams; control system synthesis; electric current control; power convertors; state feedback; Bode diagram; cross coupling decoupling; decoupling current control; relative gain concept; series decoupling; state feedback decoupling algorithms; synchronous rotating frame; three-phase voltage source convertor; Converters; Current control; Inductors; Mathematical model; Power conversion; Power engineering and energy; Reactive power control; State feedback; Voltage control; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 2001. Proceedings., 2001 4th IEEE International Conference on

Print_ISBN

0-7803-7233-6

Type

conf

DOI

10.1109/PEDS.2001.975280

Filename

975280