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
pricing
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
Author
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 4 368-378Subject Categories
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1049/iet-rpg.2014.0139