Adaptive integral sliding mode controller for offshore steel jacket platform

Author

Sola, Hamid Nouri ; Ahmadi, Behzad ; Ghaemi, Sehraneh

Author_Institution

Fac. of Electr. & Comput. Eng., Univ. of Tabriz, Tabriz, Iran

fYear

2014

fDate

1-4 June 2014

Firstpage

46

Lastpage

51

Abstract

This paper is concerned with active control for an offshore steel jacket platform subject to nonlinear wave-excited forces and parameter perturbation by using an adaptive control law and combining it with sliding mode control scheme. This novel control scheme is an adaptive integral sliding mode controller (AISMC). Then by considering vibration frequencies uncertainties and damping ratio uncertainties of offshore steel jacket platform, we have designed (RAISMC) control scheme. It is shown through simulation results, compared with some existing control schemes, this controller has a better performance in reducing oscillation amplitudes of the three floors of offshore platform with much less control force.

Keywords

adaptive control; control system synthesis; damping; offshore installations; structural engineering; variable structure systems; vibration control; RAISMC control scheme design; active control; adaptive control law; adaptive integral sliding mode controller; control force; control schemes; damping ratio; nonlinear wave-excited forces; offshore steel jacket platform; oscillation amplitudes reduction; parameter perturbation; vibration frequencies; Damping; Force; Oscillators; Robustness; Steel; Uncertainty; Vibrations; active control; adaptive integral sliding mode control; offshore platform; uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics (ISIE), 2014 IEEE 23rd International Symposium on

Conference_Location

Istanbul

Type

conf

DOI

10.1109/ISIE.2014.6864584

Filename

6864584