Bascone, D;
Galvanin, F;
Shah, N;
Garcia-Munoz, S;
(2019)
Modelling and Nonlinear Model Predictive Control of a Twin Screw Feeder.
In: Danciu, D, (ed.)
Proceedings of the 15th IFAC Workshop on Time Delay Systems TDS 2019.
Elsevier: Sinaia, Romania.
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Abstract
In this work, a dynamic model of a twin screw feeder, for continuous tablet manufacturing, has been developed. In particular, a First Order Plus Dead Time (FOPDT) model has been suggested. The delayed dynamics depends on operating conditions, equipment design and physical properties of the bulk solid. Model parameters are estimated by fitting the model to experimental data. Due to the nonlinear input-output relationships and the time delays involved, a Nonlinear Model Predictive Control (NMPC) is investigated to maintain an accurate mass flow rate, with the ultimate goal to improve product homogeneity in an inherently complex process. The performance of the designed control system is found to be satisfactory in a wide operating range and its potential use in a continuous manufacturing process is worth being investigated in the future.
| Type: | Proceedings paper |
|---|---|
| Title: | Modelling and Nonlinear Model Predictive Control of a Twin Screw Feeder |
| Event: | 15th IFAC Workshop on Time Delay Systems TDS 2019 |
| Location: | Sinaia, Romania |
| Dates: | 09 September 2019 - 11 September 2019 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.ifacol.2019.12.223 |
| Publisher version: | https://doi.org/10.1016/j.ifacol.2019.12.223 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Dynamic modelling, Nonlinear model predictive control, Time-delay systems ,Screw feeder, Pharmaceutical |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10086500 |
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