Cross-directional control of sheet and film processes
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 …
The robustness and design of constrained cross-directional control via integral quadratic constraints
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 …
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 …
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
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 …
Using spatial H2 norm for sensor placement in parabolic partial differential equations
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 …
[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 …
L1/Q approach for efficient computation of disturbance rejection measures for feedback control
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 …