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MORE Lab _ http://www.morenergylab.polito.it
Parametric modelling of wave energy converters via data-based interpolation/extrapolation
keywords CONTROL SYSTEMS, MODELLING, SYSTEM DYNAMICS, WAVE ENERGY - HYDRODYNAMICS - NUMERICAL MODELLING
Reference persons NICOLAS EZEQUIEL FAEDO
Research Groups MORE Lab _ http://www.morenergylab.polito.it
Thesis type MASTER THESIS
Description Optimisation of ocean wave energy conversion systems, commonly referred to as wave energy
converters (WECs), can be an intricate process, which requires simultaneous evaluation of various
parameters of a given conversion concept in order to maximise productivity and, ultimately, minimise
final costs associated with the device. Such an optimisation process is commonly based on mathematical
models representing the device dynamics, in an attempt to predict performance behaviour, design
adequate control systems, and assess final productivity.
Dynamical models for WEC systems are virtually always computed in terms of so-called boundary
element methods (BEMs), which provide, for a given (fixed) geometry, a characterisation of the
hydrodynamics of such a device. Though highly versatile, BEM-based software potentially necessitates a
substantial computational time to determine the hydrodynamics of an associated geometry with a given
degree of resolution, hence being less than ideal for iterative procedures, such as those normally
employed within performance optimization (see diagram below).
Since geometry can be a key parameter within optimisation of WEC design, and BEM models are shape-dependent,
fast and reliable numerical modelling for different geometries is of paramount importance
to achieve efficient iterative loops for performance enhancement. In the light of this requirement, and
based on finite-dimensional output data computed with BEM codes, this project will aim at providing
interpolation-based techniques to tackle efficient WEC modelling for use within optimisation
procedures. Static and dynamic structures will be considered for interpolation (and extrapolation) of
hydrodynamics, based on standard techniques from the field of function approximation.
See also main.pdf
Required skills Fundamentals of physical modelling, transfer functions, state-space systems.
Deadline 28/08/2024
PROPONI LA TUA CANDIDATURA