CONTROL FOR INTEGRATING PROCESSES BASED ON NEW MODIFIED SMITH PREDICTOR

This paper presents a new modified Smith Predictor called Cascade Smith Predictor (CSP) to control the integrating processes with long dead-time, CSP has two Smith Predictors. The inner predictor keeps the actual process stable and converts the integrating process into a stable one, while the outer smith predictor reject the load disturbance. Combined with a good tuning rule introduced in this paper, the CSP control structure only need to adjust one parameter to control the integrating processes with long dead-time, which make CSP show better performance than that of other Smith predictors.