초록 ▼

The present invention is directed to a method and apparatus for controlling a process which may include long process delays, using an internal model-based control strategy wherein any external disturbances are effectively taken into account in a manner which results in a stable, predictable output.

The present invention is directed to a method and apparatus for controlling a process which may include long process delays, using an internal model-based control strategy wherein any external disturbances are effectively taken into account in a manner which results in a stable, predictable output. In accordance with exemplary embodiments, rather than using a mismatch signal .epsilon. as a feedback signal to address mismatches due to both modelling errors and to any external disturbance component, exemplary embodiments feedback an adaptive prediction of the mismatch signal. In accordance with exemplary embodiments, the adaptive, predicted mismatch signal possesses a value which takes into account the process time delay, or the process time delay plus some additional delay, to allow time for the control system to respond.

대표청구항 ▼

[ What is claimed is:] [1.] Apparatus for controlling a process comprising:means for receiving at least one setpoint reference signal;means for modeling a process to be controlled, and for producing a predicted process output signal in response to said at least one setpoint signal, said at least one

[ What is claimed is:] [1.] Apparatus for controlling a process comprising:means for receiving at least one setpoint reference signal;means for modeling a process to be controlled, and for producing a predicted process output signal in response to said at least one setpoint signal, said at least one set point reference signal being a vector of multiple control variables in said process to be controlled; andmeans for producing an adaptive predictive feedback signal as a predicted difference between said predicted process output signal and an actual process output signal.