Original scientific paper

https://doi.org/10.21278/brod67407

LMI - BASED H2 AND H STATE - FEEDBACK CONTROLLER DESIGN FOR FIN STABILIZER OF NONLINEAR ROLL MOTION OF A FISHING BOAT

Hakan Demirel orcid.org/0000-0001-8944-5062 ; Naval Architecture and Maritime Faculty Yıldız Technical University 34349 Beşiktaş – İstanbul Turkey
Fuat Alarçin orcid.org/0000-0003-1073-0368 ; Naval Architecture and Maritime Faculty Yıldız Technical University 34349 Beşiktaş – İstanbul Turkey

Abstract

This paper presents the analyses of nonlinear roll responses of a fishing boat in waves. In addition to roll damping nonlinearity, the nonlinear roll restoring which has seventh order equation has been taken into consideration to accurate control application. To overcome nonlinearity and the effects of uncertainties, LMI (Linear Matrix Inequality) - based H2 and H State - Feedback Control are applied for the fin roll stabilizer of a fishing boat. The fin characteristics are calculated by Star CCM+ package software. Finally, utilising the studies presented to illustrate the feasibility and efficiency of the H2 and H control methods, the results of the simulations are demonstrated the performance of fin roll stabilizer.

Keywords

H2 and H control; linear matrix inequality; fin roll stabilizer

Hrčak ID:

167407

URI

https://hrcak.srce.hr/167407

Publication date:

31.12.2016.

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