Ocean Energy Systems

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Article Power Umbilical for Ocean Renewable Energy Systems - Feasibility and Dynamic Response Analysis
Author(s) A. Lamberti, C. Fenton, L. Johanning, L. Martinelli, P. Kirrane, P. Ricci, P. Ruol (ICOE 2010)
Tags WEC, Power cable, Mooring, Wave energy
Type Papers
File Power Umbilical for Ocean Renewable Energy Systems - Feasibility and Dynamic Response Analysis

Abstract: Scale tests focusing on the power umbilical connected to a floating wave energy converter (WEC) are described. The experiments investigate on the dynamic movements of a cable in catenaryshaped and lazy wave layout. Results, interpreted with the aid of a simple numerical model, suggest that the second configuration is more suitable for offshore WEC applications. The buoyancy modules decouple the WEC motions from the touchdown point and reduce the hang-off loads at the WEC interface.

A state of the art numerical model (Flexcom) is used to study several other layouts and to discuss the key role played by the drag to weight ratio.

Umbilical characteristics, feasibility and deployment methods are also discussed. 


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