Patent ID: 8200346

Claim:
A model based process controller for use in controlling a process, comprising: a controller input to receive one or more process measurements indicative of a controlled variable within the process; a controller output to provide one or more control signals for controlling a manipulated process variable of the process; a process model unit including a process model that models the operation of a process, wherein the process model unit produces a predicted process variable value based on the process model; a control unit that uses the predicted process variable value and a process variable set point to generate a preliminary control signal; an error unit that uses the predicted process variable value to generate an error signal; an integrator that integrates the error signal to produce an integrated error signal; and a combiner unit coupled to the integrator and to the control unit to combine the integrated error signal with the preliminary control signal to produce a final control signal for use in controlling the manipulated process variable of the process.