The objective of the project was to participate in the IEA annex 'Dynamic models of wind farms for power system studies'. The objective of the IEA annex is to establish an international forum for
The main objective of Annex XVII is to provide wind energy planners and designers, as well as the international wind engineering community in general, with easy access to quality controlled measured
The main objective of the project is to implement controller design of wind turbines in the general design process, on the same level as structural dynamics and aerodynamics. Specific focus is on
Background: Within the Aeroelastic Research Program carried out from 1997 to 2002 by Risø and DTU a coordinated and continuous work has been carried out on the development of advanced computer models
The objective of the project was to build a demo-plant applying a new d.c. technology and to test in an onshore location with the purpose to investigate technical and financial possibilities for a d.c
This project involves experimental verification of three Risø-A airfoils to evaluate their application on Danish wind turbines. The Risø-A airfoils were designed for both stall and pitch regulation by
The project is the first step in a research effort with the overall objective to prepare technical guidelines for grid connection of wind farms to weak grid, and to identify and develop technical
This Annex had as the main objective to set up an aerodynamic data base with experimental results from detailed rotor measurements. The participants in Annex XIV were the five different research
1) To investigate whether the commenly used assumption about Gaussian (normally distributed) turbulence is valid, and possible consequenses of deviations from Gaussianity on load calculations, that
This project has compiled data to allow the Danish manufacturers of wind turbines and blades to improve their knowledge of double stall. On the basis of the double stall difficulties different types
In an earlier research project competitive and cost effective wind turbine foundations in steel were developed. One of the developed foundation types was the mono pile. The present project comprises a
The main result of the investigation is a new developed method to identify the effective damping for the edgewise blade mode shape for wind turbines. The method consists of an exciter mechanisms which