Ongoing R&D projects
Kjeller Vindteknikk has received funding from the Norwegian Research Council to develop a tool which estimates icing on transmission lines. The project Frontlines will run from 2015 to 2018 and engage several renowned international research institutes and the main grid operator in Norway, Statnett.
Icing on transmission lines can in extreme cases cause line rupture if the transmission line is not dimensioned for sufficient ice loads. An improved understanding of the scale and location of icing can prevent future line failures and reduce transmission losses in the form of corona discharge.
In the Norwegian magazine Energi edition 08/2015 there is a piece about Frontlines, the story can be read here (Text in Norwegian).
In corporation with the Norwegian Metrological Institute, Kjeller Vindteknikk will participate in the WISLINE-project which aims to study wind, ice and snow loads on infrastructure and the environment. The purpose is to quantify the impact from climate change on technical infrastructure and environment caused by severe wind, icing and wet snow.
The project is financed by the Norwegian Research Council and runs from 2015 to 2018.
In collaboration with Stena Renewable and other stakeholders, Kjeller Vindteknikk is investigating how wind influences vibrations in the nacelle of wind turbines. Three-dimensional real time measurements of upstream wind and high resolution vibration measurements from the wind turbine form the basis for analyzing the correlation between the two.
The goal of the project is to reveal deviation in power production and identify unusual wind conditions and component failure through high-quality wind and vibration measurements.
The project has a duration of two years from 2015 and is finaced by Stena Renwable, Energimyndighetene and Elforsk.
Wet snow on transmission lines
I cooperation with CEATI in Canada, Kjeller Vindteknikk is developing a worldwide overview over how ice load from wet snow is acknowledged in dimensioning of transmission lines.
On the background of this overview recommended design criteria on wet snow icing on transmission lines will be developed and highlight potential deficiencies in national regulations.
The project is financed by CEATI and will be conducted in 2016.
In partnership with several industry operators, Kjeller Vindteknikk will use the Wind Farm Simulator to give short-term prognoses for the energy production of wind power plants, turbine loads and turbine lifetimes.
The project is financed by the Research Council of Norway and the project partners, and it will run for three years starting from summer 2016.
Renewable energy in the agriculture sector
In corporation with the Institute for Energy Technology Kjeller Vindteknikk is quantifying the potential for exploiting sun and wind for renewable energy production at Norwegian farms. Based on the resource potential a plan is developed on how Norwegian farms can exploit and capitalize on these renewable resources.
As part of the project Kjeller Vindteknikk will create a detailed wind map of the municipality Aurskog-Høland.
The project is financed by the Norwegian Agriculture Agency.
Completed R&D projects
ProdOptimize - Assessment and optimization of the energy production of operational wind farms
Kjeller Vindteknikk carried out ProdOptimize research project within the Vindforsk IV Program conducted by the Swedish Energy Research Centre (Energiforsk) during the period 2014-2016.
The research project focused on post-construction energy assessment, performance analysis and optimization of wind farm operation with quantification of icing losses.
Wind Farm Simulator
WFS is a program which simulates production and behavior of all individual turbines in a wind farm every hour. It uses time series for area specific climate conditions such as wind, icing, air density, temperature and stability as input. This is used for historic analysis, forecasting and planning purposes.
WFS was developed between 2012 and 2014 with financing by the Norwegian Research Council and Statkraft Development AS.
The ICEWIND project involves several work packages from research institutions, developers and turbine manufacturers. Kjeller Vindteknikk’s main responsibilities were developments in the areas of icing, wind farm wake calculations and short-term energy forecasts.
ICEWIND operated from September 2010 to August 2014 and was financed by Norden – Top-level Research Initiative, a major Nordic venture for climate, energy and the environment.
INTREPED is Norwegian R&D project financed by the Norwegain Research Council. Collaborating partners are NHH, SINTEF and the Norwegian Meteorological Institute. Kjeller VIndteknikks role was to examine and deliver time-series of wind energy production data and short-term wind energy forecasts for analysis of the renewable energy markets in Norway and Scandinavia.
R&D project financed by the Offshore Wind Accelerator (OWA) program as part of the Carbon Trust mission. In collaboration with Uni Research, Kjeller Vindteknikk analysed the wake interactions between large offshore wind farms, as a part of the offshore wind farm development strategies of OWA. The project duration was from January 2013 to June 2014.
Long-term correction of wind measurements. State-of-the-art, guidelines and future work.
This work was carried out by Kjeller Vindteknikk and co-funded partially by the Swedish wind energy research programme “Vindforsk – III”, and partially by Kjeller Vindteknikk. The main purposes of the study were to investigate relevant issues concerning the long-term correction of wind measurements, and to present the state-of-the-art knowledge in the field. Issues such as the use of different long-term reference datasets, and different long term correction methods were investigated, as well as the influence of the duration of the measured data and of the reference period in the uncertainty of the long-term wind, were investigated. The results are presented in the report Liléo et al. (2013).
The NORSEWInD project was developed in 2009-2012 funded by the European Comission FP7 programme, and carried out by a consortium of 21 partners throughout Europe. The main aim of the project was to provide an offshore wind atlas of the North, Irish and Baltic Seas. Kjeller Vindteknikk focused on developing and validating methods for generating wind atlases. Kjeller Vindteknikk was also responsible for the delivery of the wind atlases for the North Sea and the Baltic Sea. The work resulted in several publications. These may be found in our list of publications.
Wind Resource Mapping in Complex Terrain
The project was carried out during the period 2006-2008 funded by the Norwegian Research Council and Statoil. Kjeller Vindteknikk carried out measurements at a very complex Norwegian site using traditional measuring equipment, remote sensing (SoDAR) and high frequency turbulence measurements. The measurements were combined with high resolution microscale and mesoscale modelling in wind and turbulence analyses.