Title :
Design of H∞ robust control for single-phase shunt Active Power Filters
Author :
Jiang, Suxia ; Cui, Guangzhao ; Cao, Lingzhi ; Li, Chunwen
Author_Institution :
Key Lab. of Inf. Electr. Apparatus in Henan Province, Zhengzhou
Abstract :
Time-varying uncertainties and loads variation will influence the stabilization of Active Power Filter(APF) control system. In order to enhance the capability of interference suppression and robustness, based on Hinfin control theory, a state space model including external disturbances is built. In terms of the state space model, Hinfin output-feedback robust controller is designed using linear matrix inequality(LMI). The controller can ensure the stability of close-loop system, suppress the strong external interference and compensate effectively. Simulation results illustrate the reliability and effectiveness of the proposed control strategy.
Keywords :
Hinfin control; active filters; closed loop systems; control system synthesis; feedback; linear matrix inequalities; power filters; robust control; state-space methods; time-varying systems; uncertain systems; APF; Hinfin control theory; Hinfin robust control; LMI; close-loop system; interference suppression; linear matrix inequality; output-feedback; single-phase shunt active power filters; state space model; time-varying uncertainties; Active filters; Control systems; Control theory; Interference suppression; Load management; Power system modeling; Robust control; State-space methods; Time varying systems; Uncertainty; H∞ robust control; active power filter(APF); linear matrix inequality method;
Conference_Titel :
Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-2113-8
Electronic_ISBN :
978-1-4244-2114-5
DOI :
10.1109/WCICA.2008.4593672
