A METHOD AND SYSTEM FOR UPDATING A MODEL IN A MODEL PREDICTIVE CONTROLLER

摘要

The invention relate to a method for updating a model in a model predictive controller. The method comprises assessing the deviation of the operating performance level from the desired performance level of the process plant. Diagnosing the model predictive control for the model plant mismatch by updating the model in a model predictive controller. Diagnosing the model predictive controller comprises determining the model prediction error in relation to model plant mismatch, quantifying the model plant mismatch, and updating the model in the said model predictive controller. The invention also relate to a system for updating a model in a model predictive controller in accordance with the method of the invention.