Modeling Innovative Power Take-Off Based on Double-Acting Hydraulic Cylinders Array for Wave Energy Conversion
Author/s
Antolín-Urbaneja, Juan Carlos; Cortes, A.; Cabanes, Itziar; Estensoro, Patxi; Lasa, Joseba; [et al.]Date
2015-03-20Keywords
hydraulic power take-off
PTO
PTO Model
wave energy conversion
WEC
PTO simulation
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
d ...
Type
journal article