Title :
Nonlinear control of Hammerstein systems with passive nonlinear dynamics
Author :
Haddad, Wassim M. ; Chellaboina, VijaySekhar
Author_Institution :
Sch. of Aerosp. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
10/1/2001 12:00:00 AM
Abstract :
A nonlinear dynamic compensator framework for Hammerstein systems with passive nonlinear dynamics is proposed. For this class of systems controlled by passive nonlinear dynamic compensators we prove the global closed-loop stability by modifying the dynamic compensator to include a suitable input nonlinearity. The proof of this result is based on the dissipativity theory and shows that the nonlinear controller modification counteracts the effects of the input nonlinearity by recovering the passivity of the plant and the compensator
Keywords :
asymptotic stability; closed loop systems; compensation; control nonlinearities; nonlinear dynamical systems; Hammerstein systems; asymptotic stability; closed-loop systems; compensation; dissipativity theory; nonlinear dynamical systems; nonlinearity; passive systems; Aerospace engineering; Control design; Control nonlinearities; Control systems; Feedback loop; Hydraulic actuators; Nonlinear control systems; Nonlinear dynamical systems; Stability criteria; Transfer functions;
Journal_Title :
Automatic Control, IEEE Transactions on
