Equivalence of different two-degree-of-freedom control structures

Author

Haber, R. ; Bars, R.

Author_Institution

Dept. of Plant & Process Eng., Univ. of Appl. Sci. Cologne, Köln, Germany

fYear

1999

fDate

Aug. 31 1999-Sept. 3 1999

Firstpage

1784

Lastpage

1789

Abstract

Three different approaches in control design are considered, which correspond to different control structures: (1) feedback controller with filtering of the reference signal, (2) two-degree-of-freedom internal model control and (3) generic control scheme. It is shown that all these structures are equivalent if the control aim e.g., the tracking and the disturbance rejection behaviors, respectively, are the same in the three cases. Also inverse unstable and dead time processes are dealt with.

Keywords

control system synthesis; feedback; control design approach; dead time process; disturbance rejection behavior; feedback controller; generic control scheme; inverse unstable process; reference signal filtering; tracking behavior; two-degree-of-freedom control structures; two-degree-of-freedom internal model control; Adaptive control; Computational modeling; Feedforward neural networks; Filtering theory; Mathematical model; Process control; Transfer functions; control structure; generic control structure; internal model control; two-degree-of-freedom controller;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (ECC), 1999 European

Conference_Location

Karlsruhe

Print_ISBN

978-3-9524173-5-5

Type

conf

Filename

7099574