Faedo, Nicolás and Peña‐Sanchez, Yerai and Carapellese, Fabio and Mattiazzo, Giuliana and Ringwood, John (2021) LMI‐based passivation of LTI systems with application to marine structures. IET Renewable Power Generation, 15 (14). pp. 3424-3433. ISSN 1752-1416

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Abstract

Due to the inherent relevance of passive (physically representative) models for control, state-estimation, and motion simulation in the field of marine systems, in this paper, an optimisation-based approach to passivation of linear time-invariant (LTI) systems is proposed with application to physically consistent dynamical modelling of marine structures. In particular, the presented strategy is based upon the introduction of a suitably designed perturbation, computed via minimisation of a linear objective subject to a specific set of linear matrix inequalities (LMIs). The performance of the passivation technique is showcased in terms of two case studies: An offshore platform, with a frequency-domain response computed by means of hydrodynamic codes, and a 1:20 scale wave energy converter (WEC), is characterised in terms of real experimental data.

Item Type:	Article
Keywords:	LMI; LTI systems; marine structures;
Academic Unit:	Faculty of Science and Engineering > Electronic Engineering Faculty of Science and Engineering > Research Institutes > Centre for Ocean Energy Research
Item ID:	16118
Identification Number:	https://doi.org/10.1049/rpg2.12286
Depositing User:	Professor John Ringwood
Date Deposited:	16 Jun 2022 13:38
Journal or Publication Title:	IET Renewable Power Generation
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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