Design of Linear Fractional Transformation based robust control for interacting pressure tank process

Author

Swaminathan, R. ; Ramkumar, Kannan ; Rakesh kumar, S.

Author_Institution

Dept. of Electron. &Instrum. Eng., SASTRA Univ., Thanjavur, India

fYear

2012

fDate

30-31 March 2012

Firstpage

136

Lastpage

140

Abstract

In this paper a robust modelling method of a interacting pressure tank process with structured parametric perturbations has been used which results in a model in Linear Fractional Transformation (LFT) form. The LFT form of the system can be generated from the model of the system, Based on these modelling paradigms robust stability and performance tests have been applied for three types of control namely the H-inf control, H-inf loop shaping and μ-synthesis. Also the comparison for these three controllers are made and shown that the closed-loop system retains robust stability, while improving the tracking performance exceptionally well.

Keywords

H^∞ control; closed loop systems; control system synthesis; linear systems; perturbation techniques; process control; robust control; tanks (containers); μ-synthesis; H-inf control; H-inf loop shaping; LFT form; closed loop system; interacting pressure tank process; linear fractional transformation; performance tests; robust control design; robust modelling method; robust stability; structured parametric perturbations; tracking performance improvement; Bismuth; Steel; Uncertainty; μ-synthesis; H-inf; H-inf loop shaping; LFT;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Engineering, Science and Management (ICAESM), 2012 International Conference on

Conference_Location

Nagapattinam, Tamil Nadu

Print_ISBN

978-1-4673-0213-5

Type

conf

Filename

6215987