Title :
CAD of controllers for the servomechanism problem subject to specified real plant uncertainty
Author :
Davison, Edward J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
A fundamental limitation in achieving high performance control for multivariable plants is associated with the uncertainty in the modelling of the plant. Previous measures of robust stability uncertainty have typically been based on complex plant perturbations, which often lead to excessively conservative controller design. It is the purpose of this paper to propose a nonconservative measure of plant model uncertainty; this is done by utilizing results obtained on the real stability radius problem. A CAD approach to synthesize controllers for a plant which has a specified degree of plant model uncertainty is then proposed. Some application studies of the procedure are included
Keywords :
control system CAD; modelling; multivariable control systems; perturbation techniques; robust control; servomechanisms; uncertain systems; complex plant perturbations; conservative controller design; controller CAD; high performance control; multivariable plants; plant model uncertainty; plant modelling; plant uncertainty; real stability radius problem; robust stability uncertainty; servomechanism problem; Control system synthesis; Design engineering; Electric variables measurement; Electrical equipment industry; Industrial control; Robust stability; Robustness; Servomechanisms; Tail; Uncertainty;
Conference_Titel :
Computer-Aided Control System Design, 1996., Proceedings of the 1996 IEEE International Symposium on
Conference_Location :
Dearborn, MI
Print_ISBN :
0-7803-3032-3
DOI :
10.1109/CACSD.1996.555259
