LMI‐based passivation of LTI systems with application to marine structures

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 physica...

Full description

Saved in:
Bibliographic Details
Published inIET renewable power generation Vol. 15; no. 14; pp. 3424 - 3433
Main Authors Faedo, Nicolás, Peña‐Sanchez, Yerai, Carapellese, Fabio, Mattiazzo, Giuliana, Ringwood, John V.
Format Journal Article
LanguageEnglish
Published Wiley 01.10.2021
Subjects
Algebra
Linear control systems
Marine system control
Mathematical analysis
Wave power
Online AccessGet full text

Cover

More Information
Summary: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.
ISSN:1752-1416
1752-1424
DOI:10.1049/rpg2.12286