Multi-rate optimizing control of simulated moving beds

Cristian Grossmann, Christian Langel, Marco Mazzotti, Massimo Morbidelli, Manfred Morari
2008 2008 47th IEEE Conference on Decision and Control  
This paper presents an optimizing control scheme for simulated moving beds (SMB) that allows multi-rate (MR) sampled measurements to be incorporated into the control and estimation problem in a clear and transparent manner. This is particularly relevant for chiral separations where online monitoring requires the combination of various analytical techniques that may operate on widely varying time scales. An MR periodic linear time-varying (PLTV) model is derived for the SMB process. The cyclic
more » ... ocess. The cyclic nature of the process is exploited by formulating the MR PLTV model within a repetitive model predictive control framework. Simulation results for a chiral separation are presented. The proposed multi-rate controller is able to deliver increased productivity while respecting the process and product specifications.
doi:10.1109/cdc.2008.4739038 dblp:conf/cdc/GrossmannLMMM08 fatcat:4sh2usfazrdtbgboplp4fkrkie