Wave energy park power quality impact and collection grid economic assessment
Journal article, 2015

In this study, a wave park is analysed from the economic and electrical points of view. The system under consideration goes from each wave energy unit up to the point of common connection with the main grid. Time series are obtained from simulation models for a scaled prototype and include data for mild, medium and strong sea states. The simulation models have been validated against the small scale tank testing of a prime mover, a wave rider buoy and a scaled testing of the power take-off in a land-based test rig. The design of the proposed wave park layout aims to minimise its cost and power losses. A life-cycle analysis of the park is performed showing that around 30 Euro/MWh will be the share of the electricity price required to install and operate the wave park grid. The power quality of the wave park and its compliance with regulations are also analysed. Special emphasis is put in the study of flicker emissions concluding that the proposed wave park is within the grid code limitations and even a reduction of a 66% in the flicker coefficients is reported when considering the aggregation of several units in one model.

wave park layout

collection grid economic assessment

prime mover

time series

cost minimization

remaining life assessment

flicker coefficients

point of common connection

wave park grid

power generation economics


power take-off scaled testing

life-cycle analysis

wave energy unit

scale tank testing

power supply quality

wave rider buoy

land-based test rig

electricity price

wave power plants

power losses

power grids

flicker emissions

time series

grid code

power markets

wave energy park power quality impact


L. Trilla

Catalonia Institute for Energy Research (IREC)

Torbjörn Thiringer

Chalmers, Energy and Environment, Electric Power Engineering

S. Sahlin

Ocean Harvesting Technologies

Thomas Andersson

Ocean Harvesting Technologies

IET Renewable Power Generation

1752-1416 (ISSN) 1752-1424 (eISSN)

Vol. 9 4 368-378

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering



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