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This study examined the hydrodynamic performance of a multi-point absorber with a hydraulic power take-off (PTO) system and estimated the optimal conditions for maximum power extraction. The multi-point absorber is composed of two hemispheric buoys with a hydraulic PTO system. The hydrodynamic interactions between the two buoys were evaluated by modeling the buoys together with the PTO system. First,...
The aim of this study is to conduct a hydrodynamic analysis of a point absorber-type floating hemisphere with Power take-off(PTO) system for an optimum design of wave energy converter(WEC). In general, to predict the behavior of WEC, the equation of floating body motion can be solved in the frequency-domain analysis. A numerical model of PTO system is usually expressed as a linear damper-spring type...
This study presents an innovative design for a wave energy converter (WEC). The system is based on a novel mechanical power take-off (PTO) device that can absorb wave energy by converting the bidirectional motion of an ocean wave into the one-way rotation of an electric generator. First, the PTO mechanism and configuration are described in detail. A coupled mechanical and hydrodynamic time-domain...
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