A study of the optimum draft of multiple resonance power buoys for maximizing electric power production

To maximize electric power production using wave energy extractions from resonance power buoys, the maximum motion displacement spectra of the buoys can primarily be obtained under a given wave condition. In this study, wave spectra observed in shoaling water were formulated. Target resonance freque...

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Bibliographic Details
Published in:International journal of naval architecture and ocean engineering 2014, 6(4), , pp.813-825
Main Authors: Kweon, Hyuck-Min, Cho, Hong-Yeon, Cho, II-Hyoung
Format: Article
Language:English
Subjects:
Draft
Electric power production
Resonance power buoy
Shoaling waters
Wave spectra
조선공학
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Summary:To maximize electric power production using wave energy extractions from resonance power buoys, the maximum motion displacement spectra of the buoys can primarily be obtained under a given wave condition. In this study, wave spectra observed in shoaling water were formulated. Target resonance frequencies were established from the arithmetic means of modal frequency bands and the peak frequencies. The motion characteristics of the circular cylindrical power buoys with corresponding drafts were then calculated using numerical models without considering PTO damping force. Results showed that the heave motions of the power buoys in shoaling waters with insufficient drafts produced greater amplification effects than those in deep seas with sufficient drafts.
ISSN:2092-6782
2092-6790
DOI:10.2478/IJNAOE-2013-0215