Preditor de Smith filtrado simplificado com ação feedforward para processos de primeira ordem

Abstract

This work proposes a new design for the simplified filtered Smith predictor (SFSP) with feedforward action. The proposed strategy is based on a stable implementation structure and makes use of an auxiliary filter to obtain controller parameters more directly for first- order processes. The structure preserves the good robustness and noise attenuation properties of SFSP, while improving its disturbance rejection performance through the feedforward action. The evaluation of the proposed methodology is carried out through simulation results that show better performance indices when compared to other strategies in recent literature.