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Numerical investigation on the dynamic responses of three integrated concepts of offshore wind and wave energy converter

Lookup NU author(s): Dr Ling Wan

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Abstract

© 2020 Elsevier LtdTo achieve a better utilization of ocean space and energy, three integrated concepts of column-type wind turbine and heave-type wave energy converter (WEC) have been proposed for deep, intermediate and shallow water depth conditions, respectively. The WECs are installed on the wind turbine columns, then wave energy can be absorbed by power-take off (PTO) system through the relative heave motions between wind turbine column and the WEC. The spar-type floating wind turbines with long and short floaters are considered for deep and intermediate water depth conditions whereas a fixed-type wind turbine is considered for the shallow water depth condition. On the other hand, the WECs are torus-shaped heave-type devices, with dimensions and configurations the same for the three concepts. Numerical models are established for all the three concepts. The combined systems are subjected to various wind and wave conditions. The dynamic response analysis is carried out, and the responses including motions, forces and power, are compared among them. The results show that significantly different dynamic responses of the three concepts under environmental actions are observed.

Publication metadata

Author(s): Wan L, Ren N, Zhang P

Publication type: Article

Publication status: Published

Journal: Ocean Engineering

Year: 2020

Volume: 217

Print publication date: 01/12/2020

Online publication date: 02/09/2020

Acceptance date: 02/08/2020

ISSN (print): 0029-8018

ISSN (electronic): 1873-5258

Publisher: Elsevier Ltd

URL: https://doi.org/10.1016/j.oceaneng.2020.107896

DOI: 10.1016/j.oceaneng.2020.107896

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