Design of a Modified Smith Predictive Controller

To the industrial time-delay process,the principle of Smith predictor is introduced and analyzed.The new structure of a modified Smith predictor is given particularly.Based on the ITAE criteria,the tuning method of the modified Smith controller's parameters are intro- duced.The simulation results identified the simplicity and validity of the proposed controller,and it has an excellent robustness and disturbance rejection.The proposed controller has hopeful application prospect.