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Published in:
2018 | OriginalPaper | Chapter
Impact Analysis of Geometry Parameters of Buoy on the Pitching Motion Mechanism and Power Response for Multi-section Wave Energy Converter
Authors : Biao Li, Hongtao Gao
Published in: Advances in Intelligent Systems and Interactive Applications
Publisher: Springer International Publishing
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Abstract
This paper presents the motion characteristic and power response of a multi-section wave energy converter (WEC) consisting of two hinged cylindrical buoys and two power take-off (PTO) damping units at the joint according to a heaving and pitching motion model. The influences of geometry parameters of buoy (length, radius and draft) on the pitching motion and energy conversion ability are analyzed and summarized. The analysis results show that the relative pitching angle of two buoys depends on the pitching angles and the phase difference. The resonance frequency of pitching motion of buoy is mainly related to the radius and draft, but the phase difference generally depends on the length of buoy. The resonance of buoy and phase difference of odd multiples of 180° are necessary conditions for attaining maximum relative capture width.