Synthesis of feedforward/state feedback controllers for nonlinear processes

Synthesis of FeedforwardIState Feedback Controllers for Nonlinear Processes

A systematic method for synthesizing feedforward/ state feedback controllers for a broad class of SISO nonlinear systems with measurable disturbances is presented. Depending on the structural characteristics of the system, the control law can be static or dynamic. The closed-loop system is independent of the measurable disturbances and linear with respect to set point changes. The performance o...

for nonlinear controllers in transport - reaction processes

This paper proposes a methodology for the computation of optimal locations of point control actuators for nonlinear feedback controllers in transport-reaction processes described by a broad class of quasi-linear parabolic partial differential equations (PDE). Initially, Galerkin’s method is employed to derive finite-dimensional approximations of the PDE system which are used for the synthesis o...

Robust Control Design of Gain-scheduled Controllers for Nonlinear Processes

Two-degree-of-freedom Multirate Controllers for Nonlinear Processes

This work focuses on developing nonlinear multirate model algorithmic controllers for nonlinear processes using a closed-loop observer. Conditions for the observer function and a gain corrector function, which is necessary to ensure that the resulting control structure has integral action, are given. The control action is calculated using the corrected states. The resulting structure is a two-d...

Design of Robust Gain-scheduled Mpc Controllers for Nonlinear Processes

A methodology is proposed for the analysis and design of a robust gainscheduled Model predictive Controllers (MPC) for nonlinear chemical processes. The stability and performance tests can be formulated as a finite set of linear matrix inequalities (LMI). A simulation study of a 2x2 system indicates that this approach can provide useful robust controllers, which guarantee closed-loop robust sta...