Filter time constant self-adjusting internal model control based on variable domain fuzzy control for time-delay uncertain systems

Aiming at industrial processes with large time-delay, this paper presents a filter time constant λ self-adjusting internal model control (IMC) based on variable domain fuzzy control. A modified variable domain fuzzy control method is proposed on the basis of quantitative factor. Comparing with traditional fuzzy control, simulation results show that the method proposed can improve dynamic quality and robustness of process. Meanwhile, the method provides good performance when mismatch exits between model and actual process.