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On the explicit dead-time compensation for robust model predictive control
- Source :
-
Journal of Process Control . Jan2012, Vol. 22 Issue 1, p236-246. 11p. - Publication Year :
- 2012
-
Abstract
- Abstract: Computational simplicity is one of the most important aspects to take into account in robust model predictive control (MPC). In dead-time processes, it is common to use an augmented state-space representation in order to apply robust MPC strategies but, this procedure may affect computational aspects. In this paper, explicit dead-time compensation will be used to avoid augmented representation. This technique will be analyzed in terms of robust stability and constraint satisfaction for discrete-time linear systems. The results of this discussion will be applied to a robust tube-based MPC strategy which is able to guarantee robust stability and constraint satisfaction of a dead-time system by considering a prediction model without dead-time. Moreover, taking advantage of the proposed scheme, the robust MPC will be particularized for first-order plus dead-time models which simplifies significantly controller synthesis. The proposed dead-time compensation method will be applied to different robust MPC strategies in two case studies: (i) a simulated quadruple-tank system, and (ii) an experimental scaled laboratory heater process. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09591524
- Volume :
- 22
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Process Control
- Publication Type :
- Academic Journal
- Accession number :
- 70037432
- Full Text :
- https://doi.org/10.1016/j.jprocont.2011.08.003