Presentations
This
outline with links is for the individual presentations from the Risø
Meeting December 2005
Main
Conclusions from the meeting
WORKSHOP
PROGRAMME ON EXTERNAL CONDITIONS,
LAYOUTS AND DESIGN OF OFFSHORE
WIND FARMS
12-13 December 2005 (updated 12 dec.)
Risø National
Laboratory
Monday December 12
Introduction
Short
introduction to the annex by Jørgen Lemming
Task 23
Presentation
Movie Files
Bockstigen_200s.mp4
Solitary_Cyl.mp4
Data
and databases 1
4 presentations on: Exchange, validate and evaluate wind resource
data and wind maps specific to regions with high potential for wind
development.
Satellite
imaging techniques applied for offshore wind resource and wake loss
assessment – what can be done and where are the problems?
Merete
Bruun Christiansen, Risø National Laboratory
The
Mediterranean wind climate using models and satellite data and comparison
with available buoy measurements.
Anna Maria Sempreviva, ISAC-CNR
Why is atmospheric
stratification more important offshore than onshore
and where are the potential
problems?
Rebecca
Barthelmie, Risø National Laboratory
Mesoscale
modelling for offshore wind farms
Jake
Badger, Risø National Laboratory
Data
and databases 2
4 presentations
on: Share databases and innovations to enhance measurement accuracy
of marine buoys pertaining to long-term sea-state and MET-Ocean data.
Summary of Offshore
Wind Characterization Research in the U.S.
Walter Musial NREL
Offshore Wind-
and Turbulence-Profiles from the FINO1-Mast
Matthias
Türk,
IMK-IFU - Forschungszentrum Karlsruhe GmbH
Remote
sensing in offshore wind climatology– LIDAR/SODAR techniques
Hans
Jørgensen, Risø National
Laboratory
How can project
developers predict wind-related external conditions?
Morten
Nielsen, Risø National Laboratory
Wave prediction and metocean stations
4 presentations on: Technical exchange of wave loading prediction
methods and validation experience of wave loading on wind turbine structures.
Wave predictions
in Baltic Coastal Waters
Lars Bergdahl, Chalmers
The effect
of wave modelling on the calculation of fatigue loads
Jenny Trumars, Chalmers
Example of metocean condition analysis for Borkum Riffgrund wind
farm and Comparison of wave forces determination from Stream function
theory, Boussinesq waves and model tests
Accuracy in
wind loads
Wind and wave
forces
Helge Graversen, Carl Bro
Aspects of determine
the design parameters and Design Loads for OWECS
Movie Files
monopile_verschiebung_1d.mp4
monopile_verschiebung_2d.mp4
S10_2d.mp4
S10_3d.mp4
S25_2d.mp4
S25_3d.mp4
S75_2d.mp4
S75_3d.mp4
Kim Mittendorf / Werner Zielke, University of Hannover
Share of experiences and Developers perspective
4 presentations on: Share experience with measurement techniques
and instrumentation at offshore stations and experiences.
Offshore Wind
design Parameters (OWID)
Tom Neuman, DEWI
Reducing
energy uncertainty throughout offshore wind farm development
Joe Phillips, Garrard Hassan
Vattenfall
wind experience and foreseen need of R&D in the future
Robert Kapper, Vattenfall
Risk management,
stochastic Analyses of constructions
John D. Sorensen AAU
Tuesday December 13
Wind farm layout and technical experience
7 presentations on: Layout, array and wake effects (energy production,
fatique, and ultimate loading within wind farms, mutual shadow effects
of large, closely spaced farms)
Structural loads
from wakes – what are the potential problems offshore?
Sten
Frandsen, Risø National Laboratory
Wake losses and turbulence
within the Horns Rev off-shore wind farm
Leo E. Jensen, Elsam
Dynamic wake
model for aeroelastic simulation of fatigue and extreme loads
Movie Files
fx_Movie.mp4
Movie1sec_c.MP4
Kenneth
Thomsen, Risø
Wake
measurements in the 2x 2.5 MW wind farm ECN Wind Turbine Test Park
Wieringermeer – EWTW.
Gerard
Schepers, ECN
Using
the cost of energy to analyze and optimize the layout of offshore wind
farms
Chris
Elkinton, University of Massachusetts at Amherst, USA
Influence of near
wake modeling on prediction of energy yield and dynamic loading in wind
farms
Juan-José Trujillo,
SWE, Stuttgart
Description
of the load cases in IEC61400-3 and identification of difficulties and
pitfalls in relation to assessment of external conditions.
Niels-Jacob
Tarp-Johansen, Risø National Laboratory
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Electrical
System Integration
of Offshore Wind
Manchester, UK
September
2005
In order to facilitate the deployment of offshore wind generation
satisfactory solutions to a number of technical, commercial and
regulatory issues associated with the connection and integration
of this resource with the existing network infrastructure will
be critically important. The purpose of the workshop is to explore
these key issues and highlight the topics to be taken forward under
the grid integration of offshore wind sub-task of Task 23 of
the IEA Wind R&D Implementing Agreement.
External
Conditions,
Layouts and Design of
Offshore Wind Farms
Risø, Denmark
December 2005
Ecological
Issues
The
Netherlands
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