TY  - Journal Article
AU  - Antolín-Urbaneja, Juan Carlos
AU  - Cortes, A.
AU  - Cabanes, Itziar
AU  - Estensoro, Patxi
AU  - Lasa, Joseba
AU  - Marcos, Marga
TI  - Modeling Innovative Power Take-Off Based on Double-Acting Hydraulic Cylinders Array for Wave Energy Conversion
PY  - 2015
PB  - MDPI AG, POSTFACH, CH-4005 BASEL, SWITZERLAND
AB  - 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
SN  - 1996-1073
UR  - http://hdl.handle.net/11556/118
DX  - 10.3390/en8032230
ER  -