Abstract
Undesired motions in Floating Offshore Wind Turbines (FOWT) lead to reduction of system efficiency, the system’s lifespan, wind and wave energy mitigation and increment of stress on the system and maintenance costs. In this article, a new barge platform structure for a FOWT has been proposed with the objective of reducing these undesired platform motions. The newly proposed barge structure aims to reduce the tower displacements and platform’s oscillations, particularly in rotational movements. This is achieved by installing Oscillating Water Columns (OWC) within the barge to oppose the oscillatory motion of the waves. Response Amplitude Operator (RAO) is used to predict the motions of the system exposed to different wave frequencies. From the RAOs analysis, the system’s performance has been evaluated for representative regular wave periods. Simulations using numerical tools show the positive impact of the added OWCs on the system’s stability. The results prove that the proposed platform presents better performance by decreasing the oscillations for the given range of wave frequencies, compared to the traditional barge platform.
Highlights
The growing trend of energy consumption in the world, scarcity of land for installation of onshore wind turbines and drawbacks of fossil fuels usage are the incentives for improvement of energy harvesting projects based on clean and renewable energies in oceans [1,2]
This floating wind turbine is installed on a barge platform
Proposed a simple barge with a moonpool covered by a lid [34] and this moonpool can be used for installation of an Oscillating Water Columns (OWC)
Summary
The growing trend of energy consumption in the world, scarcity of land for installation of onshore wind turbines and drawbacks of fossil fuels usage are the incentives for improvement of energy harvesting projects based on clean and renewable energies in oceans [1,2]. Offshore wind and wave resources are considered to be two forms of clean and renewable energies with vast area for deployment [3,4]. FOWTs have become an emerging trend in wind energy exploration in the past few years [5,6,7]. They offer the possibility of cheap and clean power supply for highly populated countries with access to a deep offshore area, such as coastal cities in the US, Spain, Japan, Korea, Norway, and Morocco [8,9]. FOWTs are being built to have a capability of adding wave energy converters [10]. One of the most investigated class is the OWC [11,12]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
