Boundary observer synthesis: static and dynamic structure design (2008)
Vries, D., Keesman, K.J., Zwart, H.
We design and analyze a static boundary and a dynamic boundary observer for a typical Convection-Diffusion-Reaction system. The system is a model of a UV disinfection process, which is used in water...
Modeling and control of water disinfection process in annular photoreactors (2007)
Keesman, K.J., Vries, D., Zwart, H.
Abstract¿ As an alternative or addition to complex physical modeling, in this paper transfer function models of the disinfection process in annular photoreactors under different flow conditions are...
Egea, J.A., Vries, D., Alonso, A.A., Banga, J.R.
The problem of integrated design and control optimization of process plants is discussed in this paper. We consider it as a nonlinear programming problem subject to differential-algebraic...
A Luenberger observer for an infinite dimensional bilinear system: a uv disinfection example (2007)
Vries, D., Keesman, K.J., Zwart, H.
Abstract: Inspired by the UV disinfection processes in food and water treatment industry, we design a Luenberger observer which works at the boundary of the infinite dimensional bilinear system....
An H alpha observer at the boundary of an infinite-dimensional system (2007)
Vries, D., Keesman, K.J., Zwart, H.
We design and analyze an H_\$\infty\$ observer which works at the boundary of an infinite dimensional system with scalar disturbances. The system is a model of a UV disinfection process, which is...
Modeling and control of water disinfection process in annular photoreactors (2007)
Keesman, K.J., Vries, D., Van Mourik, S., Zwart, H.J.
As an alternative or addition to complex physical modeling, in this paper transfer function models of the disinfection process in annular photoreactors under different flow conditions are derived....
Vries, D., Keesman, K.J., Zwart, H.
Abstract In input-output relations of (compartmental) diffusive systems, physical parameters appear non-linearly, resulting in the use of (constrained) non-linear parameter estimation techniques with...
On adaptive optimal input design: A bioreactor case study (2006)
Stigter, J.D., Vries, D., Keesman, K.J.
The problem of optimal input design (OID) for a fed-batch bioreactor case study is solved recursively. Here an adaptive receding horizon optimal control problem, involving the so-called E-criterion,...
Modelling of water disinfection process in annular photoreactors (2006)
Keesman, K.J., Parasoglou, M., Vries, D.
As an alternative or addition to complex physical modelling, in this paper transfer function models of the disinfection process in annular photoreactors under different flow conditions are derived....
Vries, D., Keesman, K., Zwart, H.J.
A linear regressive model structure and output predictor, both in algebraic form, are deduced from an LTI state space system with certain properties without the need of direct matrix inversion. On...
Vries, D., Keesman, K.J., Zwart, H.J.
In input-output relations of (compartmental) diffusive systems, physical parameters appear non-linearly, resulting in the use of (constrained) non-linear parameter estimation techniques with its...
A procedure for designing a predictor of an infinite dimensional linear system is sketched, while preserving the original physical structure contained in the original PDE. After discretization...
Dual substrate feedback control of specific growth-rate in vaccine production (2004)
Neeleman, R., Beuvery, E.C., Vries, D.
Abstract: Unexpectedly, primary concern of bio-pharmaceutical industry is not optimisation of product yield or cost reduction, but consistency in production and product quality. This paper describes...
On Adaptive Optimal Input Design (2003)
Stigter, J.D., Vries, D., Keesman, K.J.
The problem of optimal input design (OID) for a fed-batch bioreactor case study is solved recursively. Here an adaptive receding horizon optimal control problem, involving the so-called E-criterion,...