Delay compensation for nonlinear, adaptive, and PDE systems

M Krstic - 2009 - Springer
This year is the 50th anniversary of Otto J. Smith's 1959 publication of a control design idea
commonly referred as the Smith predictor for the compensation of actuator delays. Actuator …

Input delay compensation for forward complete and strict-feedforward nonlinear systems

M Krstic - IEEE Transactions on Automatic Control, 2009 - ieeexplore.ieee.org
We present an approach for compensating input delay of arbitrary length in nonlinear control
systems. This approach, which due to the infinite dimensionality of the actuator dynamics …

[ΒΙΒΛΙΟ][B] Constructions of strict Lyapunov functions

M Malisoff, F Mazenc - 2009 - books.google.com
The construction of strict Lyapunov functions is a challenging problem that is of significant
ongoing research interest. Although converse Lyapunov function theory guarantees the …

Truncated predictor feedback for linear systems with long time-varying input delays

B Zhou, Z Lin, GR Duan - Automatica, 2012 - Elsevier
In this paper we study the problem of stabilizing a linear system with a single long time-
varying delay in the input. Under the assumption that the open-loop system is stabilizable …

Compensation of state-dependent input delay for nonlinear systems

N Bekiaris-Liberis, M Krstic - IEEE Transactions on Automatic …, 2012 - ieeexplore.ieee.org
We introduce and solve stabilization problems for linear and nonlinear systems with state-
dependent input delay. Since the state dependence of the delay makes the prediction …

[ΒΙΒΛΙΟ][B] Nonlinear control under nonconstant delays

Consider the time periods required for a driver to react in response to large disturbances in
road traffic; for a signal sent from Houston to reach a satellite in orbit; for a coolant to be …

Nonlinear stabilization under sampled and delayed measurements, and with inputs subject to delay and zero-order hold

I Karafyllis, M Krstic - IEEE Transactions on Automatic Control, 2011 - ieeexplore.ieee.org
Sampling arises simultaneously with input and output delays in networked control systems.
When the delay is left uncompensated, the sampling period is generally required to be …

[ΒΙΒΛΙΟ][B] Predictor feedback for delay systems: Implementations and approximations

I Karafyllis, M Krstic - 2017 - Springer
Time delays abound in dynamical systems. And long values of such delays often induce
instability. The idea of using “predictors” of the future state or output, initiated with the “Smith …

Stabilization of nonlinear delay systems: A tutorial on recent results

I Karafyllis, M Malisoff, F Mazenc, P Pepe - Recent Results on Nonlinear …, 2016 - Springer
Stabilization of nonlinear systems under delays is a central and challenging problem in
control theory. It is also of considerable interest in engineering, because delay systems are …

Stability of switched nonlinear systems with delay and disturbance

YE Wang, XM Sun, F Mazenc - Automatica, 2016 - Elsevier
We consider a class of nonlinear time-varying switched control systems for which stabilizing
feedbacks are available. We study the effect of the presence of a delay in the input of …