The saccharification temperature control of brewage based on DMC-PID

The saccharification process technology needs its control track the set point curve fast without overshoot. The normal PID algorithm apparently can´t satisfy these demands, since the dynamic lag for the saccharification temperature process of brewage is very large,. Due to the frequent disturbances of heating steam pressure, saccharification temperature DMC-PID control system is designed by combining the predictive control algorithm and PID control structure. The simulation shows that the system has not only faster follow-up tracking capability, but also non-overshoot and stronger disturbance suppressing, compared with the normal PID control.