Modeling Innovative Power Take-Off Based on Double-Acting Hydraulic Cylinders Array for Wave Energy Conversion

Thumbnail Image
Files
energies-08-02230.pdf (5.07 MB)
Identifiers
DOI: 10.3390/en8032230
Publication date
2015-03-20
Authors
Advisors
Journal Title
Journal ISSN
Volume Title
Publisher
Citations
Google Scholar
Export
Research Projects
Organizational Units
Journal Issue
Abstract
One of the key systems of a Wave Energy Converter for extraction of wave energy is the Power Take-Off (PTO) device. This device transforms the mechanical energy of a moving body into electrical energy. This paper describes the model of an innovative PTO based on independently activated double-acting hydraulic cylinders array. The model has been developed using a simulation tool, based on a port-based approach to model hydraulics systems. The components and subsystems used in the model have been parameterized as real components and their values experimentally obtained from an existing prototype. In fact, the model takes into account most of the hydraulic losses of each component. The simulations show the flexibility to apply different restraining torques to the input movement depending on the geometrical configuration and the hydraulic cylinders on duty, easily modified by a control law. The combination of these two actions allows suitable flexibility to adapt the device to different sea states whilst optimizing the energy extraction. The model has been validated using a real test bench showing good correlations between simulation and experimental tests
Description
Publisher Copyright: © 2015 by the author.
Keywords
hydraulic power take-off , PTO , PTO Model , wave energy conversion , WEC , PTO simulation , hydraulic power take-off , PTO , PTO Model , wave energy conversion , WEC , PTO simulation , Renewable Energy, Sustainability and the Environment , Fuel Technology , Energy Engineering and Power Technology , Energy (miscellaneous) , Control and Optimization , Electrical and Electronic Engineering , SDG 7 - Affordable and Clean Energy , Funding Info , Spanish Government PS-440000-2008-1, Regional Government of the Basque Country IT719-13, UPV/EHU UFI11/28 , Spanish Government PS-440000-2008-1, Regional Government of the Basque Country IT719-13, UPV/EHU UFI11/28
Type
journal article
Citation
AntolĂ­n-Urbaneja , J C , Cortes , A , Cabanes , I , Estensoro , P , Lasa , J & Marcos , M 2015 , ' Modeling Innovative Power Take-Off Based on Double-Acting Hydraulic Cylinders Array for Wave Energy Conversion ' , unknown , vol. unknown , no. 3 , pp. 2230-2267 . https://doi.org/10.3390/en8032230