Simplified filtered Smith predictor for high-order dead-time processes.

Autor: Torrico BC; Department of Electrical Engineering, Federal University of Ceará, 60455-760 Fortaleza, CE, Brazil. Electronic address: bismark@dee.ufc.br., Pereira RDO; Department of Electrical Engineering, Federal University of Ceará, 60455-760 Fortaleza, CE, Brazil. Electronic address: reneolimpio@alu.ufc.br., Sombra AKR; Department of Electrical Engineering, Federal University of Ceará, 60455-760 Fortaleza, CE, Brazil. Electronic address: andresasombra@dee.ufc.br., Nogueira FG; Department of Electrical Engineering, Federal University of Ceará, 60455-760 Fortaleza, CE, Brazil. Electronic address: fnogueira@dee.ufc.br.
Jazyk: angličtina
Zdroj: ISA transactions [ISA Trans] 2021 Mar; Vol. 109, pp. 11-21. Date of Electronic Publication: 2020 Oct 07.
DOI: 10.1016/j.isatra.2020.10.007
Abstrakt: This paper proposes a control structure suitable for high-order non-minimum phase (NMP) processes. In general, dead-time compensators (DTCs) firstly predict the process output with zero error at a steady-state and then a primary controller with an integrator is designed based on the delay-free model. The main advantage of the proposed structure is that the primary controller is only a state feedback gain with no integrators. This leads to fewer parameters to tune and lower order filters, while a robustness filter is used to reject disturbances and guarantee zero error at a steady state. Simulation results show better or equivalent performance compared to other recently published works, even kept the controller design simplicity.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2020 ISA. Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: