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Welcome to Task 23 Subtask 1 Meeting Presentions

2.2 Workshop/Round Table Discussion on
Grid Integration of Offshore Wind

June 18, 2007
London, UK
2.3 Power Flucuations from Offshore Wind Farms
February 25, 2009
Risoe, Denmark

Meeting Introduction
, Lemming
Modeling of wind power fluctuations:

WPTS – Wind Power Time Series simulation model Poul Sørensen, Risø DTU, Denmark

Validation of power fluctuation simulation model, Nicolaos Cutululis, Risø DTU, Denmark

Power Fluctuations, Arno Brand, ECN, the Netherlands
Wind speed and wind power measurements on large offshore locations:

Favourable meteorological conditions for severely variable
wind speeds at Horns Rev”

Claire Vincent, Risø DTU

Comparison of power fluctuations from offshore and offshore
Antonio Vigueras Rodríguez, University of Castilla-La Mancha, Spain

Future projects:

Offshore wind power development in Denmark
Jørgen Lemming, Risø DTU

Statkrafts Wind Power plans
Oyvind Kristiansen, Statkraft
Prediction of wind power from large offshore wind farms:

Regime switching models for prediction of wind power fluctuations
Pierre Pinson, DTU IMM

New data assimilation techniques for short-term wind energy forecast models with a rapid update cycle
Caroline Draxl, Risø DTU
Impact of power fluctuations on power system operation and control:

Offshore grids and wind power control (to be confirmed)
Ola Carlson, Chalmers

Offshore WRF simulations: geographical variation in wind power production for the North Sea” (75 MB)
Øyvind Byrkjedal, Vindteknikk

Reduction of Wind Power Variability by Aggregation of Wind Farms to Large Interconnected Offshore Grids
Jan Dobschinsky, ISET e.V.

The effect of geographical spreading on wind power fluctuations
Poul Sørensen
3.1 Workshop Programme on External Conditions,
Layouts and Design of Offshore Wind Farms

Risoe, Denmark
December 12-13, 2005

Overview Of Task 23

Risø National Laboratory Ministry for Science Technology and Innovation

Introduction to Task 23 Offshore Wind Energy Technology and Deployment
Jørgen Lemming

Satellite imaging techniques applied to offshore wind resource and wake loss assessment - what can be done and where are the problems?


Why is atmospheric stratification more important offshore than onshore and
where are the potential problems

Mesoscale Modelling for Offshore Wind Farms – necessary for adequate accuracy offshore?

Summary of Offshore Wind Characterization Research in the U.S.

Offshore Wind and Turbulence Profiles from the FINO1-Mast

Offshore measurements with SODAR and Lidar

How to predict wind-related external conditions

Wave prediction in Baltic coastal waters

The Effect of Wave Modelling on the Calculation of Fatigue Loads

Accuracy in wave loads

Aspects of Determining the Design Parameters and Design Loads for OWECS

Report on the Research Project
(BMU-Project 0329961a: Offshore Wind Design Parameter)

Reducing energy uncertainty throughout offshore wind farm development

Vattenfall’s wind energy perspective Workshop IEA Annex XXIII 12-13
December 2005 Denmark

Risk based decision analysis - Uncertainty modeling

Wake loading offshore – what are the differences from onshore?

Wake losses and turbulence within the Horns Rev off-shore wind farm

Dynamic Wake Model for Aeroelastic Simulation of Fatigue and Extreme Loads

(Wake) Measurements on EWTW ‘ECN’s Wind turbine Test site Wieringermeer’

Using the cost of energy to analyze and optimize the layout of offshore wind farms

Influence of near wake modeling on prediction of energy yield and dynamic
loading in wind farms


Description of the load cases in IEC 61400-3 and identification of difficulties and pitfalls in relation to assessment of external conditions

Main Conclusions from the IEA Annex 23, Workshop External Conditions, Layouts and Design of Offshore Wind Farms