Patent ID: 6658304
Filing Date: 2003-12-02
Classification: G05B

Abstract:
A computer based method of controlling an industrial process, including the steps ofmeasuring the values of at least one process variable, measuring a measurable disturbance in the process, estimating an inner state of the process by means of a state space model and based on the measured values of said process variable, the measurable disturbance, and a control signal, based on a first and a second control signal, controlling the process, performing a first prediction of future deviations of at least one process variable with regard to the estimated inner state of the process, providing said first control signal based on said first prediction of future deviations by means of a first control law, performing a second prediction of future deviations of said process variable with regard to said disturbance but without regard to the measured value of said at least one process variable and, providing said second control signal based on said second prediction of future deviations by means of a second control law.