Cross-directional control of sheet and film processes
JG VanAntwerp, AP Featherstone, RD Braatz… - Automatica, 2007 - Elsevier
Sheet and film processes include polymer film extrusion, coating processes of many types,
paper manufacturing, sheet metal rolling, and plate glass manufacture. Identification …
paper manufacturing, sheet metal rolling, and plate glass manufacture. Identification …
Design of cross-directional controllers with optimal steady state performance
Actuator constraint handling is necessary for many cross-directional controllers. We discuss
how optimal steady state performance can be guaranteed by modifying an internal model …
how optimal steady state performance can be guaranteed by modifying an internal model …
The robustness and design of constrained cross-directional control via integral quadratic constraints
RM Morales, WP Heath - IEEE Transactions on Control …, 2011 - ieeexplore.ieee.org
A robust stability test for a class of constrained cross-directional controllers is found. Under
special circumstances, the stability test is executed on a mode-by-mode basis and greatly …
special circumstances, the stability test is executed on a mode-by-mode basis and greatly …
A model-based approach for the construction of design spaces in quality-by-design
M Kishida, RD Braatz - 2012 American Control Conference …, 2012 - ieeexplore.ieee.org
An algorithm is proposed for the characterization of the set of allowable real parametric
uncertainties that achieve output specifications for nonlinear systems. The approach first …
uncertainties that achieve output specifications for nonlinear systems. The approach first …
Controllability of processes with large singular values
The singular-value decomposition has been used to analyze the robustness of closed-loop
systems and to determine whether any controllability problems can be expected. Past …
systems and to determine whether any controllability problems can be expected. Past …
Optimal actuator placement and model reduction for a class of parabolic partial differential equations using spatial H/sub 2/norm
MA Demetriou, A Armaou - Proceedings of the 2005, American …, 2005 - ieeexplore.ieee.org
The present work focuses on the optimal, with respect to certain criteria, placement of control
actuators for transport-reaction processes, mathematically modelled by linear parabolic …
actuators for transport-reaction processes, mathematically modelled by linear parabolic …
[PDF][PDF] Multi-loop controller synthesis and performance analysis
V Kariwala - 2004 - era.library.ualberta.ca
For selecting controlled and manipulated variables to stabilize the system, we characterize
the achievable input performance for linear time invariant (LTI) systems with and without …
the achievable input performance for linear time invariant (LTI) systems with and without …
Using spatial H2 norm for sensor placement in parabolic partial differential equations
A Armaou, MA Demetriou - 2006 American Control Conference, 2006 - ieeexplore.ieee.org
The issue of optimal sensor placement in the presence of disturbance is investigated for a
class of transport-reaction processes, mathematically modeled by linear parabolic partial …
class of transport-reaction processes, mathematically modeled by linear parabolic partial …
L1/Q approach for efficient computation of disturbance rejection measures for feedback control
V Kariwala, S Skogestad - Journal of Process Control, 2007 - Elsevier
This paper presents practical methods for computation of disturbance rejection measures,
which are useful for assessing the dynamic operability of the process. Using L1 optimal …
which are useful for assessing the dynamic operability of the process. Using L1 optimal …
[PDF][PDF] Robust cross-directional control of paper making machines with saturating actuators
In this report we discuss the design of cross-directional controllers which are guaranteed to
be robustly stabilizing while incorporating a quadratic programme for steady state …
be robustly stabilizing while incorporating a quadratic programme for steady state …