Title :
A measure for control relevant nonlinearity
Author :
Stack, Alexander J. ; Doyle, Francis J., III
Author_Institution :
Sch. of Chem. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
This paper introduces an optimal control structure as a design tool to examine relationships between operating regimes, economic penalties and controller nonlinearity for a given plant. This structure is used to resolve contradictions extant in the literature between open-loop system nonlinearity and control-relevant nonlinearity. It also reviews the use of coherence estimation as a practical method to measure continuous, open-loop system nonlinearity that is both easy to perform and analyze
Keywords :
control nonlinearities; optimal control; coherence estimation; control relevant nonlinearity; controller nonlinearity; economic penalties; open-loop system nonlinearity; operating regimes; optimal control structure; Chemical engineering; Control systems; Environmental economics; Industrial plants; Nonlinear control systems; Open loop systems; Optimal control; Performance analysis; Performance evaluation; Safety;
Conference_Titel :
American Control Conference, Proceedings of the 1995
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2445-5
DOI :
10.1109/ACC.1995.531290
