Fusco, Francesco and Ringwood, John (2014) Hierarchical Robust Control of Oscillating Wave Energy Converters With Uncertain Dynamics. IEEE Transactions on Sustainable Energy, 5 (3). ISSN 1949-3029

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Abstract

Energy-maximizing controllers for wave energy devices are normally based on linear hydrodynamic device models. Such models ignore nonlinear effects which typically manifest themselves for large device motion (typical in this application) and may also include other modeling errors. The effectiveness of a controller is, in general, determined by the match between the model the controller is based on and the actual system dynamics. This match becomes especially critical when the controller is highly tuned to the system. In this paper, we present a methodology for reducing this sensitivity to modeling errors and nonlinear effects by the use of a hierarchical robust controller, which shows small sensitivity to modeling errors, but allows good energy maximization to be recovered through a passivity-based control approach.

Item Type:	Article
Keywords:	Hierarchical robust control; oscillating wave energy converters; uncertain dynamics;
Academic Unit:	Faculty of Science and Engineering > Electronic Engineering Faculty of Science and Engineering > Research Institutes > Centre for Ocean Energy Research
Item ID:	6778
Depositing User:	Professor John Ringwood
Date Deposited:	13 Jan 2016 15:39
Journal or Publication Title:	IEEE Transactions on Sustainable Energy
Publisher:	Institute of Electrical and Electronics Engineers (IEEE)
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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