<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>This paper describes structured neural models and a computationally efficient (suboptimal) nonlinear Model Predictive Control (MPC) algorithm based on such models. The structured neural model has the ability to make future predictions of the process without being used recursively. Thanks to the nature of the model, the prediction error is not propagated. This is particularly important in the case of noise and underparameterisation. Structured models have much better long-range prediction accuracy than the corresponding classical Nonlinear Auto Regressive with eXternal input (NARX) models. The described suboptimal MPC algorithm needs solving on-line only a quadratic programming problem. Nevertheless, it gives closed-loop control performance similar to that obtained in fully-fledged nonlinear MPC, which hinges on online nonconvex optimisation. In order to demonstrate the advantages of structured models as well as the accuracy of the suboptimal MPC algorithm, a polymerisation reactor is studied.</p></abstract>

This paper describes structured neural models and a computationally efficient (suboptimal) nonlinear Model Predictive Control (MPC) algorithm based on such models. The structured neural model has the ability to make future predictions of the process without being used recursively. Thanks to the nature of the model, the prediction error is not propagated. This is particularly important in the case of noise and underparameterisation. Structured models have much better long-range prediction accuracy than the corresponding classical Nonlinear Auto Regressive with eXternal input (NARX) models. The described suboptimal MPC algorithm needs solving on-line only a quadratic programming problem. Nevertheless, it gives closed-loop control performance similar to that obtained in fully-fledged nonlinear MPC, which hinges on online nonconvex optimisation. In order to demonstrate the advantages of structured models as well as the accuracy of the suboptimal MPC algorithm, a polymerisation reactor is studied.

Efficient Nonlinear Predictive Control Based on Structured Neural Models

Institute of Control and Computation Engineering, Faculty of Electronics and Information Technology, Warsaw University of Technology, ul. Nowowiejska 15/19, 00-665 Warsaw, Poland

International Journal of Applied Mathematics and Computer Science

{"article-title":"Efficient Nonlinear Predictive Control Based on Structured Neural Models"}

This paper describes structured neural models and a computationally efficient (suboptimal) nonlinear Model Predictive Control (MPC) algorithm based on such...

Efficient Nonlinear Predictive Control Based on Structured Neural Models

Publié en ligne: 08 juil. 2009

Pages: 233 - 246

DOI: https://doi.org/10.2478/v10006-009-0019-1

Mots clés
process control, model predictive control, neural networks, optimisation, linearisation

This content is open access.

Efficient Nonlinear Predictive Control Based on Structured Neural Models

Publié en ligne: 08 juil. 2009

Pages: 233 - 246

DOI: https://doi.org/10.2478/v10006-009-0019-1

Mots clésprocess control, model predictive control, neural networks, optimisation, linearisation

This content is open access.

Mots clés
process control, model predictive control, neural networks, optimisation, linearisation