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Modeling and control of a slack-moored two-body wave energy converter with finite element analysis

TitleModeling and control of a slack-moored two-body wave energy converter with finite element analysis
Publication TypeConference Paper
Year of Publication2012
AuthorsLewis, T. M., A. von Jouanne, and T. K. A. Brekken
Conference Name2012 IEEE Energy Conversion Congress and Exposition (ECCE)
Pagination938 - 945
Date Published09/2012
PublisherIEEE
Conference LocationRaleigh, NC
ISBN Number978-1-4673-0801-4
Abstract

Wave energy converter (WEC) detailed design and hydrodynamic analysis is unique, in some respects, because the analysis in dependent on the WEC's integral power-take-off (PTO) control which changes the physical properties of the device and the environment. This raises the complexity when using standard off-shore industry finite element analysis (FEA) tools. It is especially true of autonomous WECs that are smaller and have different design requirements then utility power generation WECs or other larger off-shore structures. This paper first quantifies the design requirements for an autonomous WEC, highlights the design choices that are crucial to the WEC control and analysis, then presents results from the WEC FEA analysis that uses integrated optimal control to maximize power absorption. A proposed equivalent linear circuit is compared against these FEA results.

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Top Student Oral Presenter Award

DOI10.1109/ECCE.2012.6342718