DocumentCode :
343376
Title :
Stability radii based robust wedge-stability analysis and synthesis of continuous constrained systems
Author :
Chang, Yeong-Hwa ; Chang, Jin-Chuan
Author_Institution :
Dept. of Electr. Eng., Chung Cheng Inst. of Technol., Taoyuan, Taiwan
Volume :
4
fYear :
1999
fDate :
1999
Firstpage :
2881
Abstract :
Based on stability radii, a sufficient condition is first proposed to ensure robust wedge-stability of continuous-time constrained systems with state feedback. The saturated actuator is reformulated as a conditioned linear actuator subject to structured uncertainties and an auxiliary matrix is introduced to make the closed-loop system be characterized into a scheme of stability radius approach. We also investigate the issue of maximizing complex stability radius corresponding to a wedge region by state feedback, where a desired maximizing state feedback controller can be obtained via iteratively solving a parametrized Riccati equation. An example is given to illustrate the feasibility of the proposed results
Keywords :
actuators; closed loop systems; continuous time systems; control nonlinearities; control system analysis; control system synthesis; robust control; state feedback; uncertain systems; complex stability radius; conditioned linear actuator; continuous-time constrained systems; parametrized Riccati equation; saturated actuator; stability radii based robust wedge-stability analysis; stability radii based robust wedge-stability synthesis; state feedback; structured uncertainties; sufficient condition; Control systems; Eigenvalues and eigenfunctions; Hydraulic actuators; Integral equations; Linear feedback control systems; Nonlinear equations; Riccati equations; Robust stability; Stability analysis; State feedback;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
American Control Conference, 1999. Proceedings of the 1999
Conference_Location :
San Diego, CA
ISSN :
0743-1619
Print_ISBN :
0-7803-4990-3
Type :
conf
DOI :
10.1109/ACC.1999.786600
Filename :
786600
Link To Document :
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