Title :
Nonlinear control of nonminimum-phase systems
Author :
Boland, F.M. ; Giblin, J.
Author_Institution :
University of Dublin, Trinity College, Department of Microelectronics & Electrical Engineering, Dublin, Ireland
fDate :
7/1/1982 12:00:00 AM
Abstract :
In the paper, the regulation of nonminimum systems using a nonlinear minimum-variance control strategy is considered. The relationship between output variance and control limit of a saturating actuator is investigated. Both ultimatum simulation studies and an approximate analysis based on the statistical linearisation of the nonlinearity are presented. The results of these studies demonstrate that a minimum exists on this relationship. The connection between the use of a nonlinear controller and a suboptimal linear control law is discussed.
Keywords :
linearisation techniques; nonlinear control systems; optimal control; control limit; nonlinear minimum-variance control strategy; nonminimum-phase systems; output variance; saturating actuator; statistical linearisation; suboptimal linear control law; ultimatum simulation studies;
Journal_Title :
Control Theory and Applications, IEE Proceedings D
DOI :
10.1049/ip-d.1982.0024