Title :
Observer-based control of systems with slope-restricted nonlinearities
Author :
M. Arcak;P. Kokotovic
Author_Institution :
Dept. of Electr. Comput. & Syst. Eng., Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
An observer design is presented which makes use of bounds on the slope of system nonlinearities. Necessary and sufficient conditions are derived for the feasibility of the design. A class of state feedback control laws are characterized which, when implemented with the observer states, ensure global asymptotic stability. One such certainty-equivalence design is illustrated on an active magnetic bearing example.
Keywords :
"Nonlinear control systems","Control nonlinearities","Control systems","Feedback control","Linear feedback control systems","Automatic control","Vectors","Piecewise linear techniques","Linear systems"
Journal_Title :
IEEE Transactions on Automatic Control
