Title :
Variable horizon predictor
Author_Institution :
Fisher-Rosemount Syst. Inc., Austin, TX
Abstract :
Variable horizon predictor (VHP) background and design are discussed. VHP is designed to work in feedback control loops with various control algorithms, especially with processes featuring significant time delays. Disturbances are included into prediction, so there is no need to incorporate feedforward into feedback algorithms. PID and fuzzy logic controllers were tested with VHP and compared with simple predictive algorithm, developed to work with VHP. In all cases VHP proved to be flexible and efficient in improving control loop performance for dead-time dominant process control
Keywords :
delay systems; feedback; fuzzy control; predictive control; three-term control; PID controllers; dead-time dominant process control; feedback algorithms; feedback control loops; fuzzy logic controllers; time delays; variable horizon predictor; Acoustical engineering; Algorithm design and analysis; Delay effects; Error correction; Fuzzy logic; Prediction algorithms; Predictive control; Predictive models; Process control; Three-term control;
Conference_Titel :
Decision and Control, 1994., Proceedings of the 33rd IEEE Conference on
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
0-7803-1968-0
DOI :
10.1109/CDC.1994.411322
