Advanced control of a fluidized bed using a model-predictive controller

Ahmmed S. Ibrehem, Mohamed Azlan Hussain, Nayef M. Ghasem

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The control of fluidized-bed processes remains an area of intensive research due to their complexity and the inherent nonlinearity and varying operational dynamics involved. There are a variety of problems in chemical engineering that can be formulated as Nonlinear Programming (NLP) problems. The quality of the solution developed significantly affects the performance of such a system. Controller design involves tuning of the process controllers and their implementation to achieve a specified performance of the controlled variables. Here we used a Sequential Quadratic Programming (SQP) method to tackle the constrained high-NLP problem, in this case a modified mathematical model of gas-phase olefin polymerisation in a fluidized-bed catalytic reactor. The objective of this work was to present a comparative study; PID control was compared to an advanced neural network-based MPC decentralised controller, and the effect of SQP on the performance of the controlled variables was studied. The two control approaches were evaluated for set-point tracking and load rejection properties, both giving acceptable results.

Original languageEnglish
Pages (from-to)3954-3974
Number of pages21
JournalAustralian Journal of Basic and Applied Sciences
Issue number4
Publication statusPublished - 2009


  • Model predictive control
  • Neural networks
  • Optimisation
  • Proportion integral derivative control

ASJC Scopus subject areas

  • General


Dive into the research topics of 'Advanced control of a fluidized bed using a model-predictive controller'. Together they form a unique fingerprint.

Cite this