Wave energy production is a challenging problem, mainly due to the intrinsic complex nature of wave energy conversion (WEC) devices and their development environment. Although mooring systems are generally considered an essential part of a WECs, being able to solve the station-keeping problem, their influence in power-related problems can not be neglected. This study analyses the energy-maximizing control design procedure of a pendulum-based WEC, explicitly taking into account the influence of the mooring system. To achieve such an objective, a representative non-parametric model of the moored WEC is obtained via system identification procedures, and the PTO control parameter synthesis is achieved by exploiting the principle of impedance-matching. Simulations and computation of control parameters have been conducted with and without the mooring system, in order to quantify the importance of the mooring inclusion when addressing power generation problems.

Optimal controller tuning for a nonlinear moored wave energy converter via non-parametric frequency-domain techniques / Paduano, Bruno; Carapellese, Fabio; Pasta, Edoardo; Faedo, NICOLAS EZEQUIEL; Mattiazzo, Giuliana. - (2022). ((Intervento presentato al convegno RENEW tenutosi a Lisbona [10.1201/9781003360773-45].

Optimal controller tuning for a nonlinear moored wave energy converter via non-parametric frequency-domain techniques

Bruno Paduano;Fabio Carapellese;Edoardo Pasta;Nicolas Faedo;Giuliana Mattiazzo
2022

Abstract

Wave energy production is a challenging problem, mainly due to the intrinsic complex nature of wave energy conversion (WEC) devices and their development environment. Although mooring systems are generally considered an essential part of a WECs, being able to solve the station-keeping problem, their influence in power-related problems can not be neglected. This study analyses the energy-maximizing control design procedure of a pendulum-based WEC, explicitly taking into account the influence of the mooring system. To achieve such an objective, a representative non-parametric model of the moored WEC is obtained via system identification procedures, and the PTO control parameter synthesis is achieved by exploiting the principle of impedance-matching. Simulations and computation of control parameters have been conducted with and without the mooring system, in order to quantify the importance of the mooring inclusion when addressing power generation problems.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2972154
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