Analysis of interaction effects between WECs in four types of wave farms
Paper in proceedings, 2019

The development of wave energy converters (WECs) is often carried out based on detailed analysis of a single unit. However, successful prototypes that will become commercial will be installed in wave farms where additional effects due to interactions between the WECs will occur. Such interaction effects have been studied in several investigations, but mostly using frequency-domain analyses, or time-domain analyses with a simplified model of the WEC system. The current study presents results from time-domain coupled simulations, which are used to calculate, among others, the levelised cost of energy (LCoE) and fatigue lives of moorings of the WEC system. Four types of wave arrays were compared using the same point-absorbing WEC but with different mooring designs and array patterns. The fatigue damage of the moorings was found to increase for the arrays with strong hydrodynamic interactions from the wave field and mechanical couplings in the mooring design. The results show that the LCoE value for a WEC array farm is sensitive to the hydrodynamic interaction between WECs and the mechanical couplings in the mooring design.

array systems

interaction effects

wave farms

mooring systems

wave energy

Author

Shun-Han Yang

Chalmers, Mechanics and Maritime Sciences, Marine Technology

Jonas Ringsberg

Chalmers, Mechanics and Maritime Sciences, Marine Technology

Erland Johnson

RISE Research Institutes of Sweden

Chalmers, Mechanics and Maritime Sciences, Marine Technology

Advances in Renewable Energies Offshore - Proceedings of The 3rd International Conference on Renewable Energies Offshore (RENEW 2018)

2638-647X (ISSN)

Vol. 2019 647-655

Advances in Renewable Energies Offshore - Proceedings of The 3rd International Conference on Renewable Energies Offshore (RENEW 2018)
Lisbon, Portugal,

Chalmers Area of Advance Transport – funding 2018

Chalmers, 2018-01-01 -- 2018-12-31.

Simulation model for operation and maintenance strategy of floating wave energy converters - analysis of fatigue, wear, and influence of biofouling for effective and profitable energy harvesting

Swedish Energy Agency, 2016-06-01 -- 2018-05-31.

ELASTMOOR - Elastic mooring systems for wave energy converters

Swedish Energy Agency, 2017-04-01 -- 2020-05-31.

Driving Forces

Sustainable development

Innovation and entrepreneurship

Areas of Advance

Energy

Materials Science

Roots

Basic sciences

Subject Categories

Other Physics Topics

Marine Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering

More information

Latest update

11/11/2019