Identification of 3-by-3 MIMO system using relay feedback

Author

Bijeesh, K. ; Kalpana, D. ; Thyagarajan, T.

Author_Institution

Dept. of Instrum. Eng., Anna Univ., Chennai, India

fYear

2014

fDate

8-10 May 2014

Firstpage

157

Lastpage

162

Abstract

Relay feedback tests are carried out on 3- by- 3 multi input multi output (MIMO) system. The system considered here consists of component transfer functions of first order plus dead time (FOPDT) type with variable time delays. Analytical expressions for relay responses in time domain for the interactive transfer functions of the systems are derived. All parameters of the system are estimated with the help of relay responses. The proposed approach is illustrated using Ogunnaike Ray (OR) distillation column model. The model parameters thus obtained can be used to develop model based control schemes.

Keywords

MIMO systems; delays; distillation equipment; feedback; identification; transfer functions; 3-by-3 MIMO system identification; FOPDT; OR; Ogunnaike Ray distillation column model; component transfer functions; first order plus dead time type; model based control schemes; model parameters; multiinput multioutput system; relay feedback tests; relay responses; variable time delays; Conferences; Distillation equipment; Equations; MIMO; Mathematical model; Relays; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Communication Control and Computing Technologies (ICACCCT), 2014 International Conference on

Conference_Location

Ramanathapuram

Print_ISBN

978-1-4799-3913-8

Type

conf

DOI

10.1109/ICACCCT.2014.7019380

Filename

7019380