title: Simplified filtered Smith predictor for MIMO processes with multiple time delays.
abstract: This paper proposes a simplified tuning strategy for the multivariable filtered Smith predictor. It is shown that offset-free control can be achieved with step references and disturbances regardless of the poles of the primary controller, i.e., integral action is not explicitly required. This strategy reduces the number of design parameters and simplifies tuning procedure because the implicit integrative poles are not considered for design purposes. The simplified approach can be used to design continuous-time or discrete-time controllers. Three case studies are used to illustrate the advantages of the proposed strategy if compared with the standard approach, which is based on the explicit integrative action.
authors.affiliation: Departamento de Engenharia Elétrica, Universidade Federal da Bahia, 40210-630 BA, Brazil. Electronic address: tlsantos@ufba.br.
authors.forename: Tito L M
authors.initials: TLM
authors.lastname: Santos
authors.affiliation: Departamento de Engenharia Elétrica, Universidade Federal do Ceará, 60455-760 CE, Brazil. Electronic address: bismark@dee.ufc.br.
authors.forename: Bismark C
authors.initials: BC
authors.lastname: Torrico
authors.affiliation: Departamento de Automação e Sistemas, Universidade Federal de Santa Catarina, 88040-900 SC, Brazil. Electronic address: jnormeyrico@gmail.com.
authors.forename: Julio E
authors.initials: JE
authors.lastname: Normey-Rico
keywords: Controller Design; Dead-time compensators; MIMO processes; Robustness