Model Based Control Techniques

Most control methods, other than PID, rely on a model of the controller. With Predictive and robust control methods the models are built into the control designs, with self-tuning control the models are estimated on-line from plant data. This sections deals with other model based control techniques, that do not fall into any other category.

ACTC Case Study Reports

Model Based Control Articles

Links to Predictive Control Related Resources

• Roche Products: Non-linear Model Based Control for pH (CS06/1993) - investigated the use of Generic Model Control (GMC), a non-linear model based method, for pH control
• British Steel: Multivariable Decoupling Control of Collector Main Pressure on Coke Ovens (CS09/1995) - multivariable pressure control using decoupled PI and H-inf

• "GMC Control of a Strong Acid-Base Neutralisation System", Dec Costello, Technical Report 1992-04, Dept. of Chem Eng., Edinburgh University, June 1992. Looks at using classical feedback-feedforward controllers and Generic Model Control (GMC) for control of strong acid-base neutralisation process. Presents modelling, control design and tuning, comparison and limitations. It concludes that feedback-feedforward control provides significant improvement over standard PI control. The GMC strategy works well under ideal conditions, but it cannot cope with significant model/plant mis-match.