Optimal design and performance analysis of a hybrid system combining a semi-submersible wind platform and point absorbers
Zhou, Binzhen and Hu, Jianjian and Zhang, Qi and Wang, Lei and Jing, Fengmei and Collu, Maurizio (2023) Optimal design and performance analysis of a hybrid system combining a semi-submersible wind platform and point absorbers. Journal of Marine Science and Engineering, 11 (6). 1190. ISSN 2077-1312 (https://doi.org/10.3390/jmse11061190)
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Abstract
Integrating point absorber wave energy converters (PAWECs) and an offshore floating wind platform provide a cost-effective way of joint wind and wave energy exploitation. However, the coupled dynamics of the complicated hybrid system and its influence on power performance are not well understood. Here, a frequency-domain-coupled hydrodynamics, considering the constraints and the power output through the relative motion between the PAWECs and the semi-submersible platform, is introduced to optimize the size, power take-off damping, and layout of the PAWECs. Results show that the annual wave power generation of a PAWEC can be improved by 30% using a 90° conical or a hemispherical bottom instead of a flat bottom. Additionally, while letting the PAWECs protrude out the sides of the triangular frame of the platform by a distance of 1.5 times the PAWEC radius, the total power generation can be improved by up to 18.2% without increasing the motion response of the platform. The PAWECs can reduce the resonant heave motion of the platform due to the power take-off damping force. This study provides a reference for the synergistic use of wave and wind energy
ORCID iDs
Zhou, Binzhen, Hu, Jianjian, Zhang, Qi, Wang, Lei, Jing, Fengmei and Collu, Maurizio ORCID: https://orcid.org/0000-0001-7692-4988;-
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Item type: Article ID code: 85735 Dates: DateEvent8 June 2023Published6 June 2023Accepted10 May 2023SubmittedSubjects: Naval Science > Naval architecture. Shipbuilding. Marine engineering Department: Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering Depositing user: Pure Administrator Date deposited: 09 Jun 2023 13:38 Last modified: 18 Sep 2024 01:27 URI: https://strathprints.strath.ac.uk/id/eprint/85735