TY - GEN
T1 - Dynamic high gain scaling based output feedback for nonlinear systems with time-delayed input unmodeled dynamics
AU - Krishnamurthy, P.
AU - Khorrami, F.
N1 - Publisher Copyright:
© 2014 EUCA.
PY - 2014/7/22
Y1 - 2014/7/22
N2 - A general class of uncertain nonlinear systems with uncertain input unmodeled dynamics with time delays is considered. The system structure includes a core nominal subsystem of triangular structure with additive uncertain nonlinear functions, a coupled set of uncertain nonlinear appended dynamics, and uncertain dynamic input nonlinearities with time-varying uncertain time delays. The input unmodeled dynamics subsystem is coupled with the entire state of the system including the unmeasured state variables of the uncertain nonlinear appended dynamics coupled with the nominal triangular system and is also allowed to depend on the time delayed versions of the overall system state and control input signals. A globally stabilizing delay-independent robust adaptive dynamic output-feedback controller is designed based on the the dual controller/observer dynamic high-gain scaling with an additional dynamic scaling based on a singular-perturbation-like redesign to address the uncertain non-affine input perturbation and time-delayed input unmodeled dynamics.
AB - A general class of uncertain nonlinear systems with uncertain input unmodeled dynamics with time delays is considered. The system structure includes a core nominal subsystem of triangular structure with additive uncertain nonlinear functions, a coupled set of uncertain nonlinear appended dynamics, and uncertain dynamic input nonlinearities with time-varying uncertain time delays. The input unmodeled dynamics subsystem is coupled with the entire state of the system including the unmeasured state variables of the uncertain nonlinear appended dynamics coupled with the nominal triangular system and is also allowed to depend on the time delayed versions of the overall system state and control input signals. A globally stabilizing delay-independent robust adaptive dynamic output-feedback controller is designed based on the the dual controller/observer dynamic high-gain scaling with an additional dynamic scaling based on a singular-perturbation-like redesign to address the uncertain non-affine input perturbation and time-delayed input unmodeled dynamics.
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U2 - 10.1109/ECC.2014.6862616
DO - 10.1109/ECC.2014.6862616
M3 - Conference contribution
AN - SCOPUS:84911496434
T3 - 2014 European Control Conference, ECC 2014
SP - 1777
EP - 1782
BT - 2014 European Control Conference, ECC 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th European Control Conference, ECC 2014
Y2 - 24 June 2014 through 27 June 2014
ER -