1998
DOI: 10.1002/aic.690440711
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Nonlinear model reduction for control of distributed systems: A computer‐assisted study

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Cited by 156 publications
(67 citation statements)
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“…Such "further reduced" models are often based on modal representations of the dynamics, the modes coming from the leading part of the linearized problem ( [8]), from their Krylov subspace approximations ( [44]), from empirically determined eigenfunctions ( [43], and references therein), or from an appropriate (dissipative) part of the linear problem operator, such as the eigenfunctions of the Stokes operator in the case of the Navier-Stokes equations ( [17], [73], [74]). Beyond the qualitative similarity with singular perturbation methods that construct invariant manifolds and exploit them in controller design for finite dimensional systems ( [57]), there is an extensive interest in the use of inertial manifolds and approximate inertial manifolds for closed loop dynamics analysis and controller design (see, for example, [12,15,69,70]). Motivated by the theory of Inertial Manifolds and Approximate Inertial Manifolds, we will also explore a second (Nonlinear Galerkin, NLG) model reduction step.…”
Section: Introductionmentioning
confidence: 99%
“…Such "further reduced" models are often based on modal representations of the dynamics, the modes coming from the leading part of the linearized problem ( [8]), from their Krylov subspace approximations ( [44]), from empirically determined eigenfunctions ( [43], and references therein), or from an appropriate (dissipative) part of the linear problem operator, such as the eigenfunctions of the Stokes operator in the case of the Navier-Stokes equations ( [17], [73], [74]). Beyond the qualitative similarity with singular perturbation methods that construct invariant manifolds and exploit them in controller design for finite dimensional systems ( [57]), there is an extensive interest in the use of inertial manifolds and approximate inertial manifolds for closed loop dynamics analysis and controller design (see, for example, [12,15,69,70]). Motivated by the theory of Inertial Manifolds and Approximate Inertial Manifolds, we will also explore a second (Nonlinear Galerkin, NLG) model reduction step.…”
Section: Introductionmentioning
confidence: 99%
“…which constitutes the basis for the reduced order model (ROM) development (Shvartsman and Kevrekidis, 1998;Alonso et al, 2004b). Usually the number of modes necessary to obtain a good approximation is much lower than the number of equations required in classical methods such as finite elements or finite differences.…”
Section: The Kirchhoff Transform (3) Applied To This System Results Imentioning
confidence: 99%
“…This approach takes advantage of the spatial differential operator structure and uses the Galerkin method to approximate the system by a low-dimensional set of ODEs and to design the controller (Shvartsman and Kevrekidis, 1998). Christofides and coworkers -see, for example (Christofides and Daoutidis, 1996;Shi et al, 2006)-employed this approach to derive stabilizing controllers based on feed-back linearization and applied it to chemical systems such as tubular reactors or particulate processes, among others.…”
Section: Introductionmentioning
confidence: 99%
“…As discussed by many authors before -see for instance (Shvartsman and Kevrekidis, 1998) and references therein-the FHN system has a rich variety of dynamic behaviors as its solution is highly dependent on the values of the diffusion and kinetic parameters.…”
Section: Description Of the Reaction-diffusion System And Control Promentioning
confidence: 99%
“…Alternatively, and in the context of chemical systems, Shvartsman and Kevrekidis (1998) and Shvarstman et al (2000) made use of a particular reduced order representation of the original one dimensional distributed FHN system to carry out bifurcation analysis. The reduced order dynamic model was also employed to design a simple feedback controller that drove the system to a pre-defined limit cycle.…”
Section: Introductionmentioning
confidence: 99%