Improved non-fragile H∞ control on Three-phase Four-leg shunt active power filter

Author

Qi, Hong ; Shao, Zhenhua ; Lin, Ruiquan

Author_Institution

Dept. of Electr. Eng. & Autom., Fuzhou Univ., Fuzhou, China

Volume

2

fYear

2010

fDate

29-31 Oct. 2010

Firstpage

693

Lastpage

697

Abstract

Firstly the period averaging dynamic model of Three-phase Four-leg APF is established based on KVL. In the light of complex control and difficult implementation of dynamic compensation, the nonlinear mathematical model is changed into the standard linear model by reasonable hypothesis. Secondly, aiming at the problem that the APF controller with parameters perturbation has low robust, with the help of LMI, the improved non-fragile H∞ control on three-phase four-leg APF is studied in this paper. Finally, the simulation results are presented to prove that the good compensation effect can obtained with the parameters perturbation. Furthermore the closed-loop APF can remain H∞ index stable.

Keywords

H^∞ control; closed loop systems; linear matrix inequalities; power filters; stability; H∞ index stable; KVL; LMI; closed-loop APF; dynamic compensation; improved nonfragile H∞ control; nonlinear mathematical model; parameters perturbation; standard linear model; three-phase four-leg shunt active power filter; Resistance; LMI; Shunt Active Power Filter (SAPF); non-fragile control; three-phase four-leg (TPFL);

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Computing and Intelligent Systems (ICIS), 2010 IEEE International Conference on

Conference_Location

Xiamen

Print_ISBN

978-1-4244-6582-8

Type

conf

DOI

10.1109/ICICISYS.2010.5658469

Filename

5658469