Abstract
Hybrid wind and wave platforms are among the most promising technologies to foster access to untapped renewable energy in deep seas. This technology aims to leverage synergies between wave and wind conversion systems by sharing costs, such as mooring and electrical connection, and combining their power production. The platform is usually a floating offshore wind turbine (FOWT) integrated with one or more wave energy converter (WEC) devices. WECs, compared to FOWT, are less mature technologies as there is a general lack of design convergence nor a standard layout. This paper investigates the capabilities of a new hybrid concept developed at Politecnico di Torino, which integrates a FOWT with three point absorber WECs, such WECs are integrated into the floating structure and are fundamental to obtaining the desired hydrostatic and dynamic stability. The in-house hydrostatic stability tool and the time domain model MOST are used to analyse the hybrid system motions performances with two modes: WEC activated or blocked; in this way, this paper purports to critically discuss differences and advantages of the hybrid WEC-activated solution with respect to rigid floating substructures. The WEC-activated scenario outperforms the blocked configuration, with a 12% reduction of the nacelle acceleration.
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Petracca, E., Faraggiana, E., Sirigu, M., Giorgi, G., Bracco, G. (2023). Dynamic Motion Evaluation of a Novel Hybrid Wind and Wave Integrated Platform. In: Petuya, V., Quaglia, G., Parikyan, T., Carbone, G. (eds) Proceedings of I4SDG Workshop 2023. I4SDG 2023. Mechanisms and Machine Science, vol 134. Springer, Cham. https://doi.org/10.1007/978-3-031-32439-0_2
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